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  •   Towards the prediction of molecular parameters from astronomical emission lines using Neural Networks
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-18
    Barrientos, Alejandro, Holdship, Jonathan, Solar, Mauricio, Martín, Sergio, Rivilla, Víctor M., Viti, Serena, Mangum, Jeff, Harada, Nanase, Sakamoto, Kazushi, Muller, Sébastien, Tanaka, Kunihiko, Yoshimura, Yuki, Nakanishi, Kouichiro, Herrero-Illana, Rubén, Mühle, Stefanie, Aladro, Rebeca, Aalto, Susanne, Henkel, Christian, Humire, Pedro

    Molecular astronomy is a field that is blooming in the era of large observatories such as the Atacama Large Millimeter/Submillimeter Array (ALMA). With modern, sensitive, and high spectral resolution radio telescopes like ALMA and the Square Kilometer Array, the size of the data cubes is rapidly escalating, generating a need for powerful automatic analysis tools. This work introduces MolPred, a pilot

  •   Disentangling atmospheric compositions of K2-18 b with next generation facilities
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-14
    Changeat, Quentin, Edwards, Billy, Al-Refaie, Ahmed F., Tsiaras, Angelos, Waldmann, Ingo P., Tinetti, Giovanna

    Recent analysis of the planet K2-18 b has shown the presence of water vapour in its atmosphere. While the H2O detection is significant, the Hubble Space Telescope (HST) WFC3 spectrum suggests three possible solutions of very different nature which can equally match the data. The three solutions are a primary cloudy atmosphere with traces of water vapour (cloudy sub-Neptune), a secondary atmosphere

  •   Correction to: High precision particle astrophysics as a new window on the universe with an Antimatter Large Acceptance Detector In Orbit (ALADInO)
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-13
    Battiston, R., Bertucci, B., Adriani, O., Ambrosi, G., Baudouy, B., Blasi, P., Boezio, M., Campana, D., Derome, L., De Mitri, I., Di Felice, V., Donato, F., Duranti, M., Formato, V., Grasso, D., Gebauer, I., Iuppa, R., Masi, N., Maurin, D., Mazziotta, M. N., Musenich, R., Nozzoli, F., Papini, P., Picozza, P., Pearce, M., Pospíšil, S., Rossi, L., Tomassetti, N., Vagelli, V., Wu, X.

    A Correction to this paper has been published: https://doi.org/10.1007/s10686-021-09771-3

  •   Origins space telescope: from first light to life
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-13
    Wiedner, M. C., Aalto, S., Armus, L., Bergin, E., Birkby, J., Bradford, C. M., Burgarella, D., Caselli, P., Charmandaris, V., Cooray, A., De Beck, E., Desert, J. M., Gerin, M., Goicoechea, J., Griffin, M., Hartogh, P., Helmich, F., Hogerheijde, M., Hunt, L., Karska, A., Kral, Q., Leisawitz, D., Melnick, G., Meixner, M., Matsuura, M., Milam, S., Pearson, C., Pesce, D. W., Pontoppidan, K. M., Pope, A

    The Origins Space Telescope (Origins) is one of four science and technology definition studies selected by the National Aeronautics and Space Administration (NASA) in preparation of the 2020 Astronomy and Astrophysics Decadal survey in the US. Origins will trace the history of our origins from the time dust and heavy elements permanently altered the cosmic landscape to present-day life. It is designed

  •   Atmospheric characterization of terrestrial exoplanets in the mid-infrared: biosignatures, habitability, and diversity
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-10
    Quanz, Sascha P., Absil, Olivier, Benz, Willy, Bonfils, Xavier, Berger, Jean-Philippe, Defrère, Denis, van Dishoeck, Ewine, Ehrenreich, David, Fortney, Jonathan, Glauser, Adrian, Grenfell, John Lee, Janson, Markus, Kraus, Stefan, Krause, Oliver, Labadie, Lucas, Lacour, Sylvestre, Line, Michael, Linz, Hendrik, Loicq, Jérôme, Miguel, Yamila, Pallé, Enric, Queloz, Didier, Rauer, Heike, Ribas, Ignasi,

    Exoplanet science is one of the most thriving fields of modern astrophysics. A major goal is the atmospheric characterization of dozens of small, terrestrial exoplanets in order to search for signatures in their atmospheres that indicate biological activity, assess their ability to provide conditions for life as we know it, and investigate their expected atmospheric diversity. None of the currently

  •   Observability of temperate exoplanets with Ariel
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-10
    Encrenaz, T., Coustenis, A., Gilli, G., Marcq, E., Molaverdikhani, K., Mugnai, L. V., Ollivier, M., Tinetti, G.

    While the Ariel mission is primarily designed for the study of warm and hot objects, with an equilibrium temperature above 500 K, in this paper we want to explore a larger sample of possible colder targets. We thus investigate the detectability with Ariel of “temperate” exoplanets (with an equilibrium temperature of 400 K). We first consider the case of hydrogen-rich exoplanets (from Jupiters to sub-Neptunes)

  •   Exploring the foundations of the physical universe with space tests of the equivalence principle
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-07
    Battelier, Baptiste, Bergé, Joël, Bertoldi, Andrea, Blanchet, Luc, Bongs, Kai, Bouyer, Philippe, Braxmaier, Claus, Calonico, Davide, Fayet, Pierre, Gaaloul, Naceur, Guerlin, Christine, Hees, Aurélien, Jetzer, Philippe, Lämmerzahl, Claus, Lecomte, Steve, Le Poncin-Lafitte, Christophe, Loriani, Sina, Métris, Gilles, Nofrarias, Miquel, Rasel, Ernst, Reynaud, Serge, Rodrigues, Manuel, Rothacher, Markus

    We present the scientific motivation for future space tests of the equivalence principle, and in particular the universality of free fall, at the 10− 17 level or better. Two possible mission scenarios, one based on quantum technologies, the other on electrostatic accelerometers, that could reach that goal are briefly discussed. This publication is a White Paper written in the context of the Voyage

  •   Massive stars in extremely metal-poor galaxies: a window into the past
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-07
    Garcia, Miriam, Evans, Christopher J., Bestenlehner, Joachim M., Bouret, Jean Claude, Castro, Norberto, Cerviño, Miguel, Fullerton, Alexander W., Gieles, Mark, Herrero, Artemio, de Koter, Alexander, Lennon, Daniel J., van Loon, Jacco Th., Martins, Fabrice, de Mink, Selma E., Najarro, Francisco, Negueruela, Ignacio, Sana, Hugues, Simón-Díaz, Sergio, Szécsi, Dorottya, Tramper, Frank, Vink, Jorick S.

    Cosmic history has witnessed the lives and deaths of multiple generations of massive stars, all of them invigorating their host galaxies with ionizing photons, kinetic energy, fresh material, and stellar-mass black holes. Ubiquitous engines as they are, astrophysics needs a good understanding of their formation, evolution, properties and yields throughout the history of the Universe, and with decreasing

  •   Faint objects in motion: the new frontier of high precision astrometry
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-04
    Malbet, Fabien, Boehm, Céline, Krone-Martins, Alberto, Amorim, Antonio, Anglada-Escudé, Guillem, Brandeker, Alexis, Courbin, Frédéric, Enßlin, Torsten, Falcão, Antonio, Freese, Katherine, Holl, Berry, Labadie, Lucas, Léger, Alain, Mamon, Gary A., McArthur, Barbara, Mora, Alcione, Shao, Mike, Sozzetti, Alessandro, Spolyar, Douglas, Villaver, Eva, Abbas, Ummi, Albertus, Conrado, Alves, João, Barnes,

    Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint objects, a flexibly-pointed instrument capable of high astrometric accuracy is an ideal complement to current astrometric surveys and a unique tool for precision astrophysics. Such a space-based mission will push the frontier

  •   Unveiling the gravitational universe at μ-Hz frequencies
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-04
    Sesana, Alberto, Korsakova, Natalia, Sedda, Manuel Arca, Baibhav, Vishal, Barausse, Enrico, Barke, Simon, Berti, Emanuele, Bonetti, Matteo, Capelo, Pedro R., Caprini, Chiara, Garcia-Bellido, Juan, Haiman, Zoltan, Jani, Karan, Jennrich, Oliver, Johansson, Peter H., Khan, Fazeel Mahmood, Korol, Valeriya, Lamberts, Astrid, Lupi, Alessandro, Mangiagli, Alberto, Mayer, Lucio, Nardini, Germano, Pacucci,

    We propose a space-based interferometer surveying the gravitational wave (GW) sky in the milli-Hz to μ-Hz frequency range. By the 2040s, the μ-Hz frequency band, bracketed in between the Laser Interferometer Space Antenna (LISA) and pulsar timing arrays, will constitute the largest gap in the coverage of the astrophysically relevant GW spectrum. Yet many outstanding questions related to astrophysics

  •   Peering into the dark (ages) with low-frequency space interferometers
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-03
    Koopmans, Léon V. E., Barkana, Rennan, Bentum, Mark, Bernardi, Gianni, Boonstra, Albert-Jan, Bowman, Judd, Burns, Jack, Chen, Xuelei, Datta, Abhirup, Falcke, Heino, Fialkov, Anastasia, Gehlot, Bharat, Gurvits, Leonid, Jelić, Vibor, Klein-Wolt, Marc, Lazio, Joseph, Meerburg, Daan, Mellema, Garrelt, Mertens, Florent, Mesinger, Andrei, Offringa, André, Pritchard, Jonathan, Semelin, Benoit, Subrahmanyan

    The Dark Ages and Cosmic Dawn are largely unexplored windows on the infant Universe (z ~ 200–10). Observations of the redshifted 21-cm line of neutral hydrogen can provide valuable new insight into fundamental physics and astrophysics during these eras that no other probe can provide, and drives the design of many future ground-based instruments such as the Square Kilometre Array (SKA) and the Hydrogen

  •   Probing the nature of black holes: Deep in the mHz gravitational-wave sky
    Exp. Astron. (IF 2.012) Pub Date : 2021-09-03
    Baibhav, Vishal, Barack, Leor, Berti, Emanuele, Bonga, Béatrice, Brito, Richard, Cardoso, Vitor, Compère, Geoffrey, Das, Saurya, Doneva, Daniela, Garcia-Bellido, Juan, Heisenberg, Lavinia, Hughes, Scott A., Isi, Maximiliano, Jani, Karan, Kavanagh, Chris, Lukes-Gerakopoulos, Georgios, Mueller, Guido, Pani, Paolo, Petiteau, Antoine, Rajendran, Surjeet, Sotiriou, Thomas P., Stergioulas, Nikolaos, Taylor

    Black holes are unique among astrophysical sources: they are the simplest macroscopic objects in the Universe, and they are extraordinary in terms of their ability to convert energy into electromagnetic and gravitational radiation. Our capacity to probe their nature is limited by the sensitivity of our detectors. The LIGO/Virgo interferometers are the gravitational-wave equivalent of Galileo’s telescope

  •   Occulter to earth: prospects for studying earth-like planets with the E-ELT and a space-based occulter
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-31
    Janson, Markus, Henning, Thomas, Quanz, Sascha P., Asensio-Torres, Ruben, Buchhave, Lars, Krause, Oliver, Palle, Enric, Brandeker, Alexis

    Direct detection and characterization of Earth-like planets around Sun-like stars is a core task for evaluating the prevalence of habitability and life in the Universe. Here, we discuss a promising option for achieving this goal, which is based on placing an occulter in orbit and having it project its shadow onto the E-ELT at the surface of Earth, thus providing a sufficient contrast for imaging and

  •   Exploring solar-terrestrial interactions via multiple imaging observers
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-16
    Branduardi-Raymont, G., Berthomier, M., Bogdanova, Y. V., Carter, J. A., Collier, M., Dimmock, A., Dunlop, M., Fear, R. C., Forsyth, C., Hubert, B., Kronberg, E. A., Laundal, K. M., Lester, M., Milan, S., Oksavik, K., Østgaard, N., Palmroth, M., Plaschke, F., Porter, F. S., Rae, I. J., Read, A., Samsonov, A. A., Sembay, S., Shprits, Y., Sibeck, D. G., Walsh, B., Yamauchi, M.

    How does solar wind energy flow through the Earth’s magnetosphere, how is it converted and distributed? is the question we want to address. We need to understand how geomagnetic storms and substorms start and grow, not just as a matter of scientific curiosity, but to address a clear and pressing practical problem: space weather, which can influence the performance and reliability of our technological

  •   Extreme Universe Space Observatory on a Super Pressure Balloon 1 calibration: from the laboratory to the desert
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-13
    Adams, J. H., Allen, L., Bachman, R., Bacholle, S., Barrillon, P., Bayer, J., Bertaina, M., Blaksley, C., Blin-Bondil, S., Cafagna, F., Campana, D., Casolino, M., Christl, M. J., Cummings, A., Dagoret-Campagne, S., Damian, A. Diaz, Ebersoldt, A., Ebisuzaki, T., Escobar, J., Eser, J., Evrard, J., Fenu, F., Finch, W., Fornaro, C., Gorodetzky, P., Gregg, R., Guarino, F., Haungs, A., Hedber, W., Hunt,

    The Extreme Universe Space Observatory on a Super Pressure Balloon 1 (EUSO-SPB1) instrument was launched out of Wanaka, New Zealand, by NASA in April, 2017 as a mission of opportunity. The detector was developed as part of the Joint Experimental Missions for the Extreme Universe Space Observatory (JEM-EUSO) program toward a space-based ultra-high energy cosmic ray (UHECR) telescope with the main objective

  •   A compact instrument for gamma-ray burst detection on a CubeSat platform I
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-13
    Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Doyle, Maeve, Dunwoody, Rachel, Mangan, Joseph, Thompson, Joseph, Shortt, Brian, Martin-Carrillo, Antonio, Hanlon, Lorraine

    The Educational Irish Research Satellite 1 (EIRSAT-1) is a 2U CubeSat being developed under ESA’s Fly Your Satellite! programme. The project has many aspects, which are primarily educational, but also include space qualification of new detector technologies for gamma-ray astronomy and the detection of gamma-ray bursts (GRBs). The Gamma-ray Module (GMOD), the main mission payload, is a small gamma-ray

  •   ExoClock project: an open platform for monitoring the ephemerides of Ariel targets with contributions from the public
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-11
    Kokori, Anastasia, Tsiaras, Angelos, Edwards, Billy, Rocchetto, Marco, Tinetti, Giovanna, Wünsche, Anaël, Paschalis, Nikolaos, Agnihotri, Vikrant Kumar, Bachschmidt, Matthieu, Bretton, Marc, Caines, Hamish, Caló, Mauro, Casali, Roland, Crow, Martin, Dawes, Simon, Deldem, Marc, Deligeorgopoulos, Dimitrios, Dymock, Roger, Evans, Phil, Falco, Carmelo, Ferratfiat, Stephane, Fowler, Martin, Futcher, Stephen

    The Ariel mission will observe spectroscopically around 1000 exoplanets to further characterise their atmospheres. For the mission to be as efficient as possible, a good knowledge of the planets’ ephemerides is needed before its launch in 2028. While ephemerides for some planets are being refined on a per-case basis, an organised effort to collectively verify or update them when necessary does not

  •   Cometary plasma science
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-07
    Goetz, C., Gunell, H., Volwerk, M., Beth, A., Eriksson, A., Galand, M., Henri, P., Nilsson, H., Wedlund, C. Simon, Alho, M., Andersson, L., Andre, N., De Keyser, J., Deca, J., Ge, Y., Glassmeier, K.-H., Hajra, R., Karlsson, T., Kasahara, S., Kolmasova, I., LLera, K., Madanian, H., Mann, I., Mazelle, C., Odelstad, E., Plaschke, F., Rubin, M., Sanchez-Cano, B., Snodgrass, C., Vigren, E.

    Comets hold the key to the understanding of our Solar System, its formation and its evolution, and to the fundamental plasma processes at work both in it and beyond it. A comet nucleus emits gas as it is heated by the sunlight. The gas forms the coma, where it is ionised, becomes a plasma, and eventually interacts with the solar wind. Besides these neutral and ionised gases, the coma also contains

  •   High-precision photometry with Ariel
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-05
    Szabó, Gyula M., Kálmán, Szilárd, Pribulla, Theodor, Claret, Antonio, Mugnai, Lorenzo V., Pascale, Enzo, Waltham, Dave, Borsato, Luca, Garai, Zoltán, Szabó, Róbert

    In this paper we describe the photometry instruments of Ariel, consisting of the VISPhot, FGS1 and FGS2 photometers in the visual and mid-IR wavelength. These photometers have their own cadence, which can be independent from each other and the cadence of the spectral instruments. Ariel will be capable to do high cadence and high precision photometry in independent bands. There is also a possibility

  •   GrailQuest: hunting for atoms of space and time hidden in the wrinkle of Space-Time
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-03
    Burderi, L., Sanna, A., Di Salvo, T., Amati, L., Amelino-Camelia, G., Branchesi, M., Capozziello, S., Coccia, E., Colpi, M., Costa, E., D’Amico, N., De Bernardis, P., De Laurentis, M., Valle, M. Della, Falcke, H., Feroci, M., Fiore, F., Frontera, F., Gambino, A. F., Ghisellini, G., Hurley, K. C., Iaria, R., Kataria, D., Labanti, C., Lodato, G., Negri, B., Papitto, A., Piran, T., Riggio, A., Rovelli

    GrailQuest (Gamma Ray Astronomy International Laboratory for QUantum Exploration of Space-Time) is a mission concept based on a constellation (hundreds/thousands) of nano/micro/small-satellites in low (or near) Earth orbits. Each satellite hosts a non-collimated array of scintillator crystals coupled with Silicon Drift Detectors with broad energy band coverage (keV-MeV range) and excellent temporal

  •   Magnetic imaging of the outer solar atmosphere (MImOSA)
    Exp. Astron. (IF 2.012) Pub Date : 2021-08-03
    Peter, H., Ballester, E. Alsina, Andretta, V., Auchère, F., Belluzzi, L., Bemporad, A., Berghmans, D., Buchlin, E., Calcines, A., Chitta, L.P., Dalmasse, K., Alemán, T. del Pino, Feller, A., Froment, C., Harrison, R., Janvier, M., Matthews, S., Parenti, S., Przybylski, D., Solanki, S.K., Štěpán, J., Teriaca, L., Bueno, J. Trujillo

    The magnetic activity of the Sun directly impacts the Earth and human life. Likewise, other stars will have an impact on the habitability of planets orbiting these host stars. Although the magnetic field at the surface of the Sun is reasonably well characterised by observations, the information on the magnetic field in the higher atmospheric layers is mainly indirect. This lack of information hampers

  •   Chronos - take the pulse of our galactic neighbourhood
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-31
    Michel, Eric, Haywood, Misha, Famaey, Benoit, Mosser, Benoit, Samadi, Reza, Monteiro, Mario J.P.F.G., Kjeldsen, Hans, Belkacem, Kevin, Miglio, Andréa, Garcia, Rafael, Katz, David, Suarez, Juan Carlos, Deheuvels, Sébastien, Campante, Tiago, Cunha, Margarida, Aguirre, Victor Silva, Ballot, Jerôme, Moya, Andy

    Understanding our Galaxy’s structure, formation, and evolution will, over the next decades, continue to benefit from the wonderful large survey by Gaia, for astrometric, kinematic, and spectroscopic characterization, and by large spectroscopic surveys for chemical characterization. The weak link for full exploitation of these data is age characterization, and stellar age estimation relies predominantly

  •   A journey of exploration to the polar regions of a star: probing the solar poles and the heliosphere from high helio-latitude
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-31
    Harra, Louise, Andretta, Vincenzo, Appourchaux, Thierry, Baudin, Frédéric, Bellot-Rubio, Luis, Birch, Aaron C., Boumier, Patrick, Cameron, Robert H., Carlsson, Matts, Corbard, Thierry, Davies, Jackie, Fazakerley, Andrew, Fineschi, Silvano, Finsterle, Wolfgang, Gizon, Laurent, Harrison, Richard, Hassler, Donald M., Leibacher, John, Liewer, Paulett, Macdonald, Malcolm, Maksimovic, Milan, Murphy, Neil

    A mission to view the solar poles from high helio-latitudes (above 60°) will build on the experience of Solar Orbiter as well as a long heritage of successful solar missions and instrumentation (e.g. SOHO Domingo et al. (Solar Phys. 162(1-2), 1–37 1995), STEREO Howard et al. (Space Sci. Rev. 136(1-4), 67–115 2008), Hinode Kosugi et al. (Solar Phys. 243(1), 3–17 2007), Pesnell et al. Solar Phys. 275(1–2)

  •   Calibration of γ-ray energy in an extensive air shower using the YangBaJing hybrid Array
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-30
    Gao, Qi, Liu, Maoyuan, Chen, Tianlu, Danzengluobu, Ma, Shuaikang, Xiao, Dixuan

    The observation of γ-ray sources above 100 TeV is one of the most intriguing fields in the investigation of the origin of cosmic rays. The YangBaJing Hybrid Array (YBJ-HA) experiment consist of scintillation detectors and underground muon detectors, the main objective is to measure gamma rays >10 TeV. In this study, we investigated an energy estimation method based on particle density and fixed distance

  •   Exploration of the high-redshift universe enabled by THESEUS
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-29
    Tanvir, N. R., Le Floc’h, E., Christensen, L., Caruana, J., Salvaterra, R., Ghirlanda, G., Ciardi, B., Maio, U., D’Odorico, V., Piedipalumbo, E., Campana, S., Noterdaeme, P., Graziani, L., Amati, L., Bagoly, Z., Balázs, L. G., Basa, S., Behar, E., De Cia, A., Valle, M. Della, De Pasquale, M., Frontera, F., Gomboc, A., Götz, D., Horvath, I., Hudec, R., Mereghetti, S., O’Brien, P. T., Osborne, J. P.

    At peak, long-duration gamma-ray bursts are the most luminous sources of electromagnetic radiation known. Since their progenitors are massive stars, they provide a tracer of star formation and star-forming galaxies over the whole of cosmic history. Their bright power-law afterglows provide ideal backlights for absorption studies of the interstellar and intergalactic medium back to the reionization

  •   In Situ exploration of the giant planets
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-29
    Mousis, O., Atkinson, D. H., Ambrosi, R., Atreya, S., Banfield, D., Barabash, S., Blanc, M., Cavalié, T., Coustenis, A., Deleuil, M., Durry, G., Ferri, F., Fletcher, L. N., Fouchet, T., Guillot, T., Hartogh, P., Hueso, R., Hofstadter, M., Lebreton, J.-P., Mandt, K. E., Rauer, H., Rannou, P., Renard, J.-B., Sánchez-Lavega, A., Sayanagi, K. M., Simon, A. A., Spilker, T., Venkatapathy, E., Waite, J. H

    Remote sensing observations suffer significant limitations when used to study the bulk atmospheric composition of the giant planets of our Solar System. This impacts our knowledge of the formation of these planets and the physics of their atmospheres. A remarkable example of the superiority of in situ probe measurements was illustrated by the exploration of Jupiter, where key measurements such as the

  •   Exploration of Enceladus and titan: investigating ocean worlds’ evolution and habitability in the Saturn system
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-22
    Giuseppe Mitri, Jason Barnes, Athena Coustenis, Enrico Flamini, Alexander Hayes, Ralph D. Lorenz, Marco Mastrogiuseppe, Roberto Orosei, Frank Postberg, Kim Reh, Jason M. Soderblom, Christophe Sotin, Gabriel Tobie, Paolo Tortora, Veronique Vuitton, Peter Wurz

    We present a White Paper with a science theme concept of ocean world evolution and habitability proposed in response to ESA’s Voyage 2050 Call with a focus on Titan and Enceladus in the Saturn system. Ocean worlds in the outer Solar System that possess subsurface liquid water oceans are considered to be prime targets for extra-terrestrial life and offer windows into Solar System evolution and habitability

  •   AMBITION – comet nucleus cryogenic sample return
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-21
    D. Bockelée-Morvan, Gianrico Filacchione, Kathrin Altwegg, Eleonora Bianchi, Martin Bizzarro, Jürgen Blum, Lydie Bonal, Fabrizio Capaccioni, Mathieu Choukroun, Claudio Codella, Hervé Cottin, Björn Davidsson, Maria Cristina De Sanctis, Maria N. Drozdovskaya, Cécile Engrand, Marina Galand, Carsten Güttler, Pierre Henri, Alain Herique, Stavro Ivanovski, Rosita Kokotanekova, Anny-Chantal Levasseur-Regourd

    We describe the AMBITION project, a mission to return the first-ever cryogenically-stored sample of a cometary nucleus, that has been proposed for the ESA Science Programme Voyage 2050. Comets are the leftover building blocks of giant planet cores and other planetary bodies, and fingerprints of Solar System’s formation processes. We summarise some of the most important questions still open in cometary

  •   Space Project for Astrophysical and Cosmological Exploration (SPACE), an ESA stand-alone mission and a possible contribution to the Origins Space Telescope
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-18
    Denis Burgarella, Andrew Bunker, Rychard Bouwens, Laurent Pagani, Jose Afonso, Hakim Atek, Marc Audard, Sylvie Cabrit, Karina Caputi, Laure Ciesla, Christopher Conselice, Asantha Cooray, Giovanni Cresci, Mirko Curti, José Miguel Rodríguez Espinosa, Marc Ferrari, Chiaki Kobayashi, Nadège Lagarde, Jesus Gallego Maestro, Roberto Maiolino, Katarzyna Malek, Filippo Mannucci, Julien Montillaud, Pascal Oesch

    We propose a new mission called Space Project for Astrophysical and Cosmological Exploration (SPACE) as part of the ESA long term planning Voyage 2050 programme. SPACE will study galaxy evolution at the earliest times, with the key goals of charting the formation of the heavy elements, measuring the evolution of the galaxy luminosity function, tracing the build-up of stellar mass in galaxies over cosmic

  •   Chronos: A NIR spectroscopic galaxy survey to probe the most fundamental stages of galaxy evolution
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-18
    I. Ferreras, M. Cropper, R. Sharples, J. Bland-Hawthorn, G. Bruzual, S. Charlot, C. J. Conselice, S. Driver, J. Dunlop, A. M. Hopkins, S. Kaviraj, T. Kitching, F. La Barbera, O. Lahav, A. Pasquali, S. Serjeant, J. Silk, R. Windhorst

    We propose a dedicated, ultra-deep spectroscopic survey in the near infrared (NIR), that will target a mass-limited sample of galaxies during two of the most fundamental epochs of cosmic evolution: the formation of the first galaxies (at z \(\gtrsim \) 6; comsmic dawn), and at the peak of galaxy formation activity (at redshift z\(\sim \)1–3; cosmic noon). By way of NIR observations (λ= 0.8–2μ m), it

  •   Gamma-ray astrophysics in the MeV range
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-17
    Alessandro De Angelis, Vincent Tatischeff, Andrea Argan, Søren Brandt, Andrea Bulgarelli, Andrei Bykov, Elisa Costantini, Rui Curado da Silva, Isabelle A. Grenier, Lorraine Hanlon, Dieter Hartmann, Margarida Hernanz, Gottfried Kanbach, Irfan Kuvvetli, Philippe Laurent, Mario N. Mazziotta, Julie McEnery, Aldo Morselli, Kazuhiro Nakazawa, Uwe Oberlack, Mark Pearce, Javier Rico, Marco Tavani, Peter von

    The energy range between about 100 keV and 1 GeV is of interest for a vast class of astrophysical topics. In particular, (1) it is the missing ingredient for understanding extreme processes in the multi-messenger era; (2) it allows localizing cosmic-ray interactions with background material and radiation in the Universe, and spotting the reprocessing of these particles; (3) last but not least, gamma-ray

  •   The homogeneous characterisation of Ariel host stars
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-13
    Camilla Danielski, Anna Brucalassi, Serena Benatti, Tiago Campante, Elisa Delgado-Mena, Monica Rainer, Germano Sacco, Vardan Adibekyan, Katia Biazzo, Diego Bossini, Giovanni Bruno, Giada Casali, Petr Kabath, Laura Magrini, Giusi Micela, Giuseppe Morello, Pietro Palladino, Nicoletta Sanna, Subhajit Sarkar, Sérgio Sousa, Maria Tsantaki, Diego Turrini, Mathieu Van der Swaelmen

    The Ariel mission will characterise the chemical and thermal properties of the atmospheres of about a thousand exoplanets transiting their host star(s). The observation of such a large sample of planets will allow to deepen our understanding of planetary and atmospheric formation at the early stages, providing a truly representative picture of the chemical nature of exoplanets, and relating this directly

  •   Measuring the impact of Indonesian antennas on global geodetic VLBI network
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-13
    Ibnu Nurul Huda, Taufiq Hidayat, Budi Dermawan, Sébastien Lambert, Niu Liu, Stéphane Leon, Kenta Fujisawa, Yoshinori Yonekura, Koichiro Sugiyama, Tomoya Hirota, Premana W. Premadi, Rene Breton, Young-Chol Minh, Phrudth Jaroenjittichai, Dudy Wijaya, Dhota Pradipta, Nabila S. E. Putri, Sahlan Ramadhan, Lucky Puspitarini, Hesti R. T. Wulandari, Mohammad Hafieduddin

    In the near future, two radio telescopes will be installed in the Indonesian region. These telescopes are proposed to be integrated into the existing Very Long Baseline Interferometry (VLBI) network both for astronomical and geodetical purposes. Here we simulate the impact of the inclusion of the future Indonesian antennas to the estimates of Earth Orientation Parameters and the station position. The

  •   Design and test of a portable Gamma-Ray Burst simulator for GECAM
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-09
    Can Chen, Shuo Xiao, Shaolin Xiong, Nian Yu, Xiangyang Wen, Ke Gong, Xinqiao Li, Chaoyang Li, Dongjie Hou, Xiongtao Yang, Zijian Zhao, Yuxuan Zhu, Dali Zhang, Zhenghua An, Xiaoyun Zhao, Yupeng Xu, Yusa Wang

    The main scientific goal of the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is to monitor various types of Gamma-Ray Bursts (GRB) originated from merger of binary compact stars, which could also produce gravitational wave, and collapse of massive stars. In order to study the response of GECAM Gamma-Ray Detectors (GRDs) to high-energy bursts and test the in-flight

  •   Synergies of THESEUS with the large facilities of the 2030s and guest observer opportunities
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-07
    P. Rosati, S. Basa, A. W. Blain, E. Bozzo, M. Branchesi, L. Christensen, A. Ferrara, A. Gomboc, P. T. O’Brien, J. P. Osborne, A. Rossi, F. Schüssler, M. Spurio, N. Stergioulas, G. Stratta, L. Amati, S. Casewell, R. Ciolfi, G. Ghirlanda, S. Grimm, D. Guetta, J. Harms, E. Le Floc’h, F. Longo, M. Maggiore, S. Mereghetti, G. Oganesyan, R. Salvaterra, N. R. Tanvir, S. Turriziani, S. D. Vergani, S. Balman

    The proposed THESEUS mission will vastly expand the capabilities to monitor the high-energy sky. It will specifically exploit large samples of gamma-ray bursts to probe the early universe back to the first generation of stars, and to advance multi-messenger astrophysics by detecting and localizing the counterparts of gravitational waves and cosmic neutrino sources. The combination and coordination

  •   Mapping large-scale-structure evolution over cosmic times
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-07
    Marta B. Silva, Ely D. Kovetz, Garrett K. Keating, Azadeh Moradinezhad Dizgah, Matthieu Bethermin, Patrick C. Breysse, Kirit Karkare, José L. Bernal, Jacques Delabrouille

    This paper outlines the science case for line-intensity mapping with a space-borne instrument targeting the sub-millimeter (microwaves) to the far-infrared (FIR) wavelength range. Our goal is to observe and characterize the large-scale structure in the Universe from present times to the high redshift Epoch of Reionization. This is essential to constrain the cosmology of our Universe and form a better

  •   A comprehensive investigation of the Galilean moon, Io, by tracing mass and energy flows
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-05
    N. Thomas

    Io is the most volcanically-active object in the solar system. The moon ejects a tonne per second of sulphur-rich gases that fill the vast magnetosphere of Jupiter and drives million-amp electrical currents that excite strong auroral emissions. We present the case for including a detailed study of Io within Voyage 2050 either as a standalone mission or as a contribution to a NASA New Frontiers mission

  •   Microwave spectro-polarimetry of matter and radiation across space and time
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-03
    Jacques Delabrouille, Maximilian H. Abitbol, Nabila Aghanim, Yacine Ali-Haïmoud, David Alonso, Marcelo Alvarez, Anthony J. Banday, James G. Bartlett, Jochem Baselmans, Kaustuv Basu, Nicholas Battaglia, José Ramón Bermejo Climent, José L. Bernal, Matthieu Béthermin, Boris Bolliet, Matteo Bonato, François R. Bouchet, Patrick C. Breysse, Carlo Burigana, Zhen-Yi Cai, Jens Chluba, Eugene Churazov, Helmut

    This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-dimensional distribution of hot gas, velocity flows, early metals, dust, and mass distribution in the entire Hubble volume, exploit CMB temperature and polarisation anisotropies down to fundamental limits, and track energy

  •   Ice giant system exploration within ESA’s Voyage 2050
    Exp. Astron. (IF 2.012) Pub Date : 2021-07-01
    Leigh N. Fletcher, Ravit Helled, Elias Roussos, Geraint Jones, Sébastien Charnoz, Nicolas André, David Andrews, Michele Bannister, Emma Bunce, Thibault Cavalié, Francesca Ferri, Jonathan Fortney, Davide Grassi, Léa Griton, Paul Hartogh, Ricardo Hueso, Yohai Kaspi, Laurent Lamy, Adam Masters, Henrik Melin, Julianne Moses, Oliver Mousis, Nadine Nettleman, Christina Plainaki, Jürgen Schmidt, Amy Simon

    Of all the myriad environments in our Solar System, the least explored are the distant Ice Giants Uranus and Neptune, and their diverse satellite and ring systems. These ‘intermediate-sized’ worlds are the last remaining class of Solar System planet to be characterised by a dedicated robotic mission, and may shape the paradigm for the most common outcome of planetary formation throughout our galaxy

  •   Gamma ray burst studies with THESEUS
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-30
    G. Ghirlanda, R. Salvaterra, M. Toffano, S. Ronchini, C. Guidorzi, G. Oganesyan, S. Ascenzi, M. G. Bernardini, A. E. Camisasca, S. Mereghetti, L. Nava, M. E. Ravasio, M. Branchesi, A. Castro-Tirado, L. Amati, A. Blain, E. Bozzo, P. O’Brien, D. Götz, E. Le Floch, J. P. Osborne, P. Rosati, G. Stratta, N. Tanvir, A. I. Bogomazov, P. D’Avanzo, M. Hafizi, S. Mandhai, A. Melandri, A. Peer, M. Topinka, S

    Gamma-ray Bursts (GRBs) are the most powerful transients in the Universe, over–shining for a few seconds all other γ-ray sky sources. Their emission is produced within narrowly collimated relativistic jets launched after the core–collapse of massive stars or the merger of compact binaries. THESEUS will open a new window for the use of GRBs as cosmological tools by securing a statistically significant

  •   Quantum technologies in space
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-25
    Rainer Kaltenbaek, Antonio Acin, Laszlo Bacsardi, Paolo Bianco, Philippe Bouyer, Eleni Diamanti, Christoph Marquardt, Yasser Omar, Valerio Pruneri, Ernst Rasel, Bernhard Sang, Stephan Seidel, Hendrik Ulbricht, Rupert Ursin, Paolo Villoresi, Mathias van den Bossche, Wolf von Klitzing, Hugo Zbinden, Mauro Paternostro, Angelo Bassi

    Recently, the European Commission supported by many European countries has announced large investments towards the commercialization of quantum technology (QT) to address and mitigate some of the biggest challenges facing today’s digital era – e.g. secure communication and computing power. For more than two decades the QT community has been working on the development of QTs, which promise landmark

  •   Balloon flight test of a CeBr3 detector with silicon photomultiplier readout
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-25
    David Murphy, Joseph Mangan, Alexei Ulyanov, Sarah Walsh, Rachel Dunwoody, Lorraine Hanlon, Brian Shortt, Sheila McBreen

    Recent advances in silicon photomultiplier (SiPM) technology and new scintillator materials allow for the creation of compact high-performance gamma-ray detectors which can be deployed on small low-cost satellites. A small number of such satellites can provide full sky coverage and complement, or in some cases replace the existing gamma-ray missions in detection of transient gamma-ray events. The aim

  •   Understanding the origin of the positron annihilation line and the physics of supernova explosions
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-22
    F. Frontera, E. Virgilli, C. Guidorzi, P. Rosati, R. Diehl, T. Siegert, C. Fryer, L. Amati, N. Auricchio, R. Campana, E. Caroli, F. Fuschino, C. Labanti, M. Orlandini, E. Pian, J. B. Stephen, S. Del Sordo, C. Budtz-Jorgensen, I. Kuvvetli, S. Brandt, R. M. Curado da Silva, P. Laurent, E. Bozzo, P. Mazzali, M. Della Valle

    Nuclear astrophysics, and particularly nuclear emission line diagnostics from a variety of cosmic sites, has remained one of the least developed fields in experimental astronomy, despite its central role in addressing a number of outstanding questions in modern astrophysics. Radioactive isotopes are co-produced with stable isotopes in the fusion reactions of nucleosynthesis in supernova explosions

  •   Ancillary science with Ariel: feasibility and scientific potential of young stellar object observations
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-21
    B. Gyürüs, Cs. Kiss, J.C. Morales, N. Nakhjiri, G. Marton, P. Ábrahám, Á. Kóspál, A. Moór, Gy.M. Szabó, R. Szabó

    To investigate the feasibility of ancillary target observations with ESA’s Ariel mission, we compiled a list of potentially interesting young stars: FUors, systems harbouring extreme debris discs and a larger sample of young stellar objects showing strong near/mid-infrared excess. These objects can be observed as additional targets in the waiting times between the scheduled exoplanet transit and occultation

  •   A Case for Electron-Astrophysics
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-11
    Daniel Verscharen, Robert T. Wicks, Olga Alexandrova, Roberto Bruno, David Burgess, Christopher H. K. Chen, Raffaella D’Amicis, Johan De Keyser, Thierry Dudok de Wit, Luca Franci, Jiansen He, Pierre Henri, Satoshi Kasahara, Yuri Khotyaintsev, Kristopher G. Klein, Benoit Lavraud, Bennett A. Maruca, Milan Maksimovic, Ferdinand Plaschke, Stefaan Poedts, Christopher S. Reynolds, Owen Roberts, Fouad Sahraoui

    The smallest characteristic scales, at which electron dynamics determines the plasma behaviour, are the next frontier in space and astrophysical plasma research. The analysis of astrophysical processes at these scales lies at the heart of the research theme of electron-astrophysics. Electron scales are the ultimate bottleneck for dissipation of plasma turbulence, which is a fundamental process not

  •   Mars and the ESA Science Programme - the case for Mars polar science
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-09
    Nicolas Thomas, P. Becerra, I. B. Smith

    Current plans within the European Space Agency (ESA) for the future investigation of Mars (after the ExoMars programme) are centred around participation in the Mars Sample Return (MSR) programme led by NASA. This programme is housed within the Human and Robotic Exploration (HRE) Directorate of ESA. This White Paper, in response to the Voyage 2050 call, focuses on the important scientific objectives

  •   Venus: key to understanding the evolution of terrestrial planets
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-08
    Colin F. Wilson, Thomas Widemann, Richard Ghail

    In this paper, originally submitted in answer to ESA’s “Voyage 2050” call to shape the agency’s space science missions in the 2035–2050 timeframe, we emphasize the importance of a Venus exploration programme for the wider goal of understanding the diversity and evolution of habitable planets. Comparing the interior, surface, and atmosphere evolution of Earth, Mars, and Venus is essential to understanding

  •   Dynamic simulation and parameter fitting method of cometary dust based on machine learning
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-04
    Yuxian Yue, Zirui Cao, Haoran Gu, Xiaohui Wang

    Cometary dust is refractory particles lifted and ejected by sublimation of volatiles from the surface of comets with typical diameters from sub-micrometers to centimeters. These particles distribute around and recede from cometary nuclei and are illuminated by the Sun, forming the observable dust comae and tails. The fundamental characteristics of cometary dust, such as their size and size distribution

  •   MeerCRAB: MeerLICHT classification of real and bogus transients using deep learning
    Exp. Astron. (IF 2.012) Pub Date : 2021-06-02
    Zafiirah Hosenie, Steven Bloemen, Paul Groot, Robert Lyon, Bart Scheers, Benjamin Stappers, Fiorenzo Stoppa, Paul Vreeswijk, Simon De Wet, Marc Klein Wolt, Elmar Körding, Vanessa McBride, Rudolf Le Poole, Kerry Paterson, Daniëlle L. A. Pieterse, Patrick Woudt

    Astronomers require efficient automated detection and classification pipelines when conducting large-scale surveys of the (optical) sky for variable and transient sources. Such pipelines are fundamentally important, as they permit rapid follow-up and analysis of those detections most likely to be of scientific value. We therefore present a deep learning pipeline based on the convolutional neural network

  •   THEZA: TeraHertz Exploration and Zooming-in for Astrophysics
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-27
    Leonid I. Gurvits, Zsolt Paragi, Viviana Casasola, John Conway, Jordy Davelaar, Heino Falcke, Rob Fender, Sándor Frey, Christian M. Fromm, Cristina García Miró, Michael A. Garrett, Marcello Giroletti, Ciriaco Goddi, José-Luis Gómez, Jeffrey van der Gucht, José Carlos Guirado, Zoltán Haiman, Frank Helmich, Elizabeth Humphreys, Violette Impellizzeri, Michael Kramer, Michael Lindqvist, Hendrik Linz, Elisabetta

    This paper presents the ESA Voyage 2050 White Paper for a concept of TeraHertz Exploration and Zooming-in for Astrophysics (THEZA). It addresses the science case and some implementation issues of a space-borne radio interferometric system for ultra-sharp imaging of celestial radio sources at the level of angular resolution down to (sub-) microarcseconds. THEZA focuses at millimetre and sub-millimetre

  •   Exoplanet mass estimation for a sample of targets for the Ariel mission
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-26
    J. R. Barnes, C. A. Haswell

    Ariel’s ambitious goal to survey a quarter of known exoplanets will transform our knowledge of planetary atmospheres. Masses measured directly with the radial velocity technique are essential for well determined planetary bulk properties. Radial velocity masses will provide important checks of masses derived from atmospheric fits or alternatively can be treated as a fixed input parameter to reduce

  •   The far-infrared spectroscopic surveyor (FIRSS)
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-26
    D. Rigopoulou, C. Pearson, B. Ellison, M. Wiedner, V. Ossenkopf Okada, B. K. Tan, I. Garcia-Bernete, M. Gerin, G. Yassin, E. Caux, S. Molinari, J. R. Goicoechea, G. Savini, L. K. Hunt, D. C. Lis, P. F. Goldsmith, S. Aalto, G. Magdis, C. Kramer

    We are standing at the crossroads of powerful new facilities emerging in the next decade on the ground and in space like ELT, SKA, JWST, and Athena. Turning the narrative of the star formation potential of galaxies into a quantitative theory will provide answers to many outstanding questions in astrophysics, from the formation of planets to the evolution of galaxies and the origin of heavy elements

  •   Bringing high spatial resolution to the far-infrared
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-26
    Hendrik Linz, Henrik Beuther, Maryvonne Gerin, Javier R. Goicoechea, Frank Helmich, Oliver Krause, Yao Liu, Sergio Molinari, Volker Ossenkopf-Okada, Jorge Pineda, Marc Sauvage, Eva Schinnerer, Floris van der Tak, Martina Wiedner, Jerome Amiaux, Divya Bhatia, Luisa Buinhas, Gilles Durand, Roger Förstner, Urs Graf, Matthias Lezius

    The far-infrared (FIR) regime is one of the wavelength ranges where no astronomical data with sub-arcsecond spatial resolution exist. None of the medium-term satellite projects like SPICA, Millimetron, or the Origins Space Telescope will resolve this malady. For many research areas, however, information at high spatial and spectral resolution in the FIR, taken from atomic fine-structure lines, from

  •   Gravitation and the Universe from large scale-structures
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-21
    Alain Blanchard, Éric Aubourg, Philippe Brax, Francisco J. Castander, Sandrine Codis, Stéphanie Escoffier, Fabien Dournac, Agnès Ferté, Fabio Finelli, Pablo Fosalba, Emmanuel Gangler, Satya Gontcho A Gontcho, Adam Hawken, Stéphane Ilić, Jean-Paul Kneib, Martin Kunz, Guilhem Lavaux, Olivier Le Fèvre, Julien Lesgourgues, Yannick Mellier, Jérémy Neveu, Yann Rasera, Cécile Renault, Marina Ricci, Ziad Sakr

    Today, thanks in particular to the results of the ESA Planck mission, the concordance cosmological model appears to be the most robust to describe the evolution and content of the Universe from its early to late times. It summarizes the evolution of matter, made mainly of dark matter, from the primordial fluctuations generated by inflation around 10− 30 second after the Big Bang to galaxies and clusters

  •   Ariel planetary interiors White Paper
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-21
    Ravit Helled, Stephanie Werner, Caroline Dorn, Tristan Guillot, Masahiro Ikoma, Yuichi Ito, Mihkel Kama, Tim Lichtenberg, Yamila Miguel, Oliver Shorttle, Paul J. Tackley, Diana Valencia, Allona Vazan

    The recently adopted Ariel ESA mission will measure the atmospheric composition of a large number of exoplanets. This information will then be used to better constrain planetary bulk compositions. While the connection between the composition of a planetary atmosphere and the bulk interior is still being investigated, the combination of the atmospheric composition with the measured mass and radius of

  •   High precision particle astrophysics as a new window on the universe with an Antimatter Large Acceptance Detector In Orbit (ALADInO)
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-19
    R. Battiston, B. Bertucci, O. Adriani, G. Ambrosi, B. Baoudoy, P. Blasi, M. Boezio, D. Campana, L. Derome, I. De Mitri, V. Di Felice, F. Donato, M. Duranti, V. Formato, D. Grasso, I. Gebauer, R. Iuppa, N. Masi, D. Maurin, M. N. Mazziotta, R. Musenich, F. Nozzoli, P. Papini, P. Picozza, M. Pearce, S. Pospíšil, L. Rossi, N. Tomassetti, V. Vagelli, X. Wu

    Multimessenger astrophysics is based on the detection, with the highest possible accuracy, of the cosmic radiation. During the last 20 years, the advent space-borne magnetic spectrometers in space (AMS-01, Pamela, AMS-02), able to measure the charged cosmic radiation separating matter from antimatter, and to provide accurate measurement of the rarest components of Cosmic Rays (CRs) to the highest possible

  •   Lunar or space-based hypertelescope for direct high-resolution imaging
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-19
    Antoine Labeyrie, Denis Mourard, Jean Schneider

    Following the testing of a pathfinder hypertelescope in the southern Alps, versions usable on the Moon or in space are proposed. The large resolution gain expected for direct imaging in a narrow “Direct Imaging Field”, with a high limiting magnitude, is of interest for many astrophysical targets and for searching for exolife on nearby exoplanets. The much larger field-of-view obtainable with multi-field

  •   Future perspectives in solar hot plasma observations in the soft X-rays
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-18
    Alain Jody Corso, Giulio Del Zanna, Vanessa Polito

    The soft X-rays (SXRs: 90–150 Å) are among the most interesting spectral ranges to be investigated in the next generation of solar missions due to their unique capability of diagnosing phenomena involving hot plasma with temperatures up to 15 MK. Multilayer (ML) coatings are crucial for developing SXR instrumentation, as so far they represent the only viable option for the development of high-efficiency

  •   The local dark sector
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-17
    Joel Bergé, Laura Baudis, Philippe Brax, Sheng-Wey Chiow, Bruno Christophe, Olivier Doré, Pierre Fayet, Aurélien Hees, Philippe Jetzer, Claus Lämmerzahl, Meike List, Gilles Métris, Martin Pernot-Borràs, Justin Read, Serge Reynaud, Jason Rhodes, Benny Rievers, Manuel Rodrigues, Timothy Sumner, Jean-Philippe Uzan, Nan Yu

    We speculate on the development and availability of new innovative propulsion techniques in the 2040s, that will allow us to fly a spacecraft outside the Solar System (at 150 AU and more) in a reasonable amount of time, in order to directly probe our (gravitational) Solar System neighborhood and answer pressing questions regarding the dark sector (dark energy and dark matter). We identify two closely

  •   The high energy Universe at ultra-high resolution: the power and promise of X-ray interferometry
    Exp. Astron. (IF 2.012) Pub Date : 2021-05-17
    Phil Uttley, Roland den Hartog, Cosimo Bambi, Didier Barret, Stefano Bianchi, Michal Bursa, Massimo Cappi, Piergiorgio Casella, Webster Cash, Elisa Costantini, Thomas Dauser, Maria Diaz Trigo, Keith Gendreau, Victoria Grinberg, Jan-Willem den Herder, Adam Ingram, Erin Kara, Sera Markoff, Beatriz Mingo, Francesca Panessa, Katja Poppenhäger, Agata Różańska, Jiri Svoboda, Ralph Wijers, Richard Willingale

    We propose the development of X-ray interferometry (XRI), to reveal the Universe at high energies with ultra-high spatial resolution. With baselines which can be accommodated on a single spacecraft, XRI can reach 100 μ as resolution at 10 Å (1.2 keV) and 20 μ as at 2 Å (6 keV), enabling imaging and imaging-spectroscopy of (for example) X-ray coronae of nearby accreting supermassive black holes (SMBH)

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