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  • SS433: A massive X-ray binary in an advanced evolutionary stage
    New Astron. Rev. (IF 4.2) Pub Date : 2020-07-31
    Anatol Cherepashchuk; Konstantin Postnov; Sergey Molkov; Eleonora Antokhina; Alexander Belinski

    INTEGRAL IBIS/ISGRI 18–60 keV observations of SS433 performed in 2003–2011 enabled for the first time the hard X-ray phase-resolved orbital and precessional light curves and spectra to be constructed. The spectra can be fitted by a power-law with photon index ≃ 3.8 and remain almost constant while the X-ray flux varies by a factor of a few. This suggests that the hard X-ray emission in SS433 is produced

    更新日期:2020-08-10
  • Radio galaxies and feedback from AGN jets
    New Astron. Rev. (IF 4.2) Pub Date : 2020-07-31
    M.J. Hardcastle; J.H. Croston

    We review current understanding of the population of radio galaxies and radio-loud quasars from an observational perspective, focusing on their large-scale structures and dynamics. We discuss the physical conditions in radio galaxies, their fuelling and accretion modes, host galaxies and large-scale environments, and the role(s) they play as engines of feedback in the process of galaxy evolution. Finally

    更新日期:2020-08-05
  • The Case for Jets in Cataclysmic Variables
    New Astron. Rev. (IF 4.2) Pub Date : 2020-07-31
    Deanne L. Coppejans; Christian Knigge

    For decades cataclysmic variables (CVs) were thought to be one of the few classes of accreting compact objects to not launch jets, and have consequently been used to constrain jet launching models. However, recent theoretical and observational advances indicate that CVs do in fact launch jets. Specifically, it was demonstrated that their accretion-outflow cycle is analogous to that of their higher

    更新日期:2020-07-31
  • Particle acceleration in astrophysical jets
    New Astron. Rev. (IF 4.2) Pub Date : 2020-07-31
    James H. Matthews; Anthony R. Bell; Katherine M. Blundell

    In this chapter, we review some features of particle acceleration in astrophysical jets. We begin by describing four observational results relating to the topic, with particular emphasis on jets in active galactic nuclei and parallels between different sources. We then discuss the ways in which particles can be accelerated to high energies in magnetised plasmas, focusing mainly on shock acceleration

    更新日期:2020-07-31
  • Jets from Tidal Disruption Events
    New Astron. Rev. (IF 4.2) Pub Date : 2020-07-31
    Fabio De Colle; Wenbin Lu

    The discovery of jets from tidal disruption events (TDEs) rejuvenated the old field of relativistic jets powered by accretion onto supermassive black holes. In this Chapter, we first review the extensive multi-wavelength observations of jetted TDEs. Then, we show that these events provide valuable information on many aspects of jet physics from a new prospective, including the on-and-off switch of

    更新日期:2020-07-31
  • Supernovae Ia in 2019 (review): A rising demand for spherical explosions
    New Astron. Rev. (IF 4.2) Pub Date : 2020-05-25
    Noam Soker

    I review new studies of type Ia supernovae (SNe Ia) from 2019, and use these to improve the comparison between the five binary SN Ia scenarios. New low polarisation measurements solidify the claim that most SN Ia explosions are globally spherically symmetric (clumps are possible). Explosions by dynamical processes, like explosions that take place during a merger process of two white dwarfs (WDs) in

    更新日期:2020-05-25
  • Energy-sensitive detectors for astronomy: Past, present and future
    New Astron. Rev. (IF 4.2) Pub Date : 2020-02-27
    E.G.P. O’Connor; A. Shearer; K. O’Brien
    更新日期:2020-02-27
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