- 作 者: ( "xilong fan" OR "xi-long fan" )
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Echoes of Stars in tracking Rastall gravityarXiv - PHYS - General Relativity and Quantum Cosmology Pub Date : 2023-02-17 ,DOI:arxiv-2302.10875Kai Lin, Chieh-Hung Chen, Yang-Yi Sun, Xilong Fan, Hongsheng ZhangWe construct a star with uniform density in frame of tracking Rastall gravity, in which the density of effective dark matter tracks the density of dark energy. To demonstrate stability of the star we analyse the axial gravitational perturbations of the star. We find that echo wavelets naturally appear in the axial gravitational waves when the dark matter plays a significant role in construction of ...
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Search for stochastic gravitational-wave background from string cosmology with Advanced LIGO and Virgo's O1$\sim$O3 dataarXiv - PHYS - General Relativity and Quantum Cosmology Pub Date : 2023-02-08 ,DOI:arxiv-2302.03846Yang Jiang, Xi-Long Fan, Qing-Guo HuangString cosmology models predict a relic background of gravitational-wave (GW) radiation in the early universe. The GW energy spectrum of radiated power increases rapidly with the frequency, and therefore it becomes a potential and meaningful observation object for high-frequency GW detector. We focus on the stochastic background generated by superinflation in string theory and search for such signal ...
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Search for stochastic gravitational-wave background from string cosmology with Advanced LIGO and Virgo's O1$\sim$O3 dataarXiv - PHYS - Cosmology and Nongalactic Astrophysics Pub Date : 2023-02-08 ,DOI:arxiv-2302.03846Yang Jiang, Xi-Long Fan, Qing-Guo HuangString cosmology models predict a relic background of gravitational-wave (GW) radiation in the early universe. The GW energy spectrum of radiated power increases rapidly with the frequency, and therefore it becomes a potential and meaningful observation object for high-frequency GW detector. We focus on the stochastic background generated by superinflation in string theory and search for such signal ...
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GalCEM. I. An Open-source Detailed Isotopic Chemical Evolution CodeThe Astrophysical Journal Supplement Series (IF 9.2) Pub Date : 2023-02-02 ,DOI:10.3847/1538-4365/aca7c7Eda Gjergo, Aleksei G. Sorokin, Anthony Ruth, Emanuele Spitoni, Francesca Matteucci, Xilong Fan, Jinning Liang, Marco Limongi, Yuta Yamazaki, Motohiko Kusakabe, Toshitaka Kajino
This is the first of a series of papers that will introduce a user-friendly, detailed, and modular Galactic Chemical Evolution Model, GalCEM, that tracks isotope masses as a function of time in a given galaxy. The list of tracked isotopes automatically adapts to the complete set provided by the input yields. The present iteration of GalCEM tracks 86 elements broken down into 451 isotopes. The prescription
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Gravitational Wave Radiation from Newborn Accreting MagnetarsResearch in Astronomy and Astrophysics (IF 1.889) Pub Date : 2023-01-16 ,DOI:10.1088/1674-4527/acaa90Quan Cheng, Xiao-Ping Zheng, Xi-Long Fan, Xi HuangThe observed electromagnetic radiation from some long and short gamma-ray bursts, and neutron stars (NSs), and the theoretical models proposed to interpret these observations together point to a very interesting but confusing problem, namely, whether fall-back accretion could lead to dipole field decay of newborn NSs. In this paper, we investigate the gravitational wave (GW) radiation of newborn magnetars ...
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GalCEM I -- An Open-Source Detailed Isotopic Chemical Evolution CodearXiv - PHYS - Astrophysics of Galaxies Pub Date : 2023-01-05 ,DOI:arxiv-2301.02257Eda Gjergo, Aleksei G. Sorokin, Anthony Ruth, Emanuele Spitoni, Francesca Matteucci, Xilong Fan, Jinning Liang, Marco Limongi, Yuta Yamazaki, Motohiko Kusakabe, Toshitaka KajinoThis is the first of a series of papers that will introduce a user-friendly, detailed, and modular GALactic Chemical Evolution Model, GalCEM, that tracks isotope masses as a function of time in a given galaxy. The list of tracked isotopes automatically adapts to the complete set provided by the input yields. The present iteration of GalCEM tracks 86 elements broken down in 451 isotopes. The prescription ...
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How gravitational fluctuations degrade the high-dimensional spatial entanglementPhysical Review D (IF 5.407) Pub Date : 2022-08-26 ,DOI:10.1103/physrevd.106.045023Haorong Wu, Xilong Fan, Lixiang Chen
Twisted photons carrying orbital angular momentum (OAM) are competent candidates for future interstellar communications. However, the gravitational fluctuations are ubiquitous in spacetime. Thus a fundamental question arises naturally as to how the gravitational fluctuations affect the coherence and the degree of high-dimensional OAM entanglement when twisted photons travel across the textures of curved
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Characterizing instrumental noise and stochastic gravitational wave signals from combined time-delay interferometryPhysical Review D (IF 5.407) Pub Date : 2022-08-25 ,DOI:10.1103/physrevd.106.044054Gang Wang, Bin Li, Peng Xu, Xilong FanLISA will detect gravitational waves (GWs) in the milli-Hz frequency band in space. Time-delay interferometry (TDI) is developed to suppress laser frequency noise beneath the acceleration noise and optical metrology noise. To identify stochastic GW signals, we need to characterize these noise components entangled in TDI data streams. In this work, we investigate noises characterization by combining ...
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How gravitational fluctuations degrade the high-dimensional spatial entanglementarXiv - PHYS - Quantum Physics Pub Date : 2022-08-08 ,DOI:arxiv-2208.04000Haorong Wu, Xilong Fan, Lixiang ChenTwisted photons carrying orbital angular momentum (OAM) are competent candidates for future interstellar communications. However, the gravitational fluctuations are ubiquitous in spacetime. Thus a fundamental question arises naturally as to how the gravitational fluctuations affect the coherence and the degree of high-dimensional OAM entanglement when twisted photons travel across the textures of curved ...
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How gravitational fluctuations degrade the high-dimensional spatial entanglementarXiv - PHYS - General Relativity and Quantum Cosmology Pub Date : 2022-08-08 ,DOI:arxiv-2208.04000Haorong Wu, Xilong Fan, Lixiang ChenTwisted photons carrying orbital angular momentum (OAM) are competent candidates for future interstellar communications. However, the gravitational fluctuations are ubiquitous in spacetime. Thus a fundamental question arises naturally as to how the gravitational fluctuations affect the coherence and the degree of high-dimensional OAM entanglement when twisted photons travel across the textures of curved ...
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Energetic transients joint analysis system for multi-INstrument (ETJASMIN) for GECAM I. Positional, temporal and spectral analysesMonthly Notices of the Royal Astronomical Society (IF 5.235) Pub Date : 2022-04-13 ,DOI:10.1093/mnras/stac999Shuo Xiao, Shao-Lin Xiong, Ce Cai, Li-Ming Song, Shi-Jie Zheng, Wen-Xi Peng, Ping Wang, Rui Qiao, Dong-Ya Guo, Jin Wang, Xiao-Bo Li, Xin-Ying Song, Yong Yuan, Xi-Long Fan, Xiao-Yun Zhao, Yue Huang, Xiang Ma, Peng Zhang, Bing Li, Ming-Yu Ge, You-Li Tuo, Wei Chen, Hong-Mei Zhang, Jian-Jian He, Chao-Yang Li, Qi-Bin Yi, Yi Zhao, Yan-Qiu Zhang, Chao Zheng, Wang-Chen Xue, Jia-Cong Liu, Zhen Zhang, Cheng-KuiGravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a dedicated mission, launched in December 2020, for gamma-ray transients including gamma-ray bursts (GRBs) and soft gamma repeater (SGR) bursts in the multi-messenger and multi-wavelength astronomy era. Since GECAM consists of two independent spacecrafts (or say instruments), and the framework of data analysis for ...
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Exploring the sky localization and early warning capabilities of third generation gravitational wave detectors in three-detector network configurationsPhysical Review D (IF 5.407) Pub Date : 2022-02-15 ,DOI:10.1103/physrevd.105.043010Yufeng Li, Ik Siong Heng, Man Leong Chan, Chris Messenger, Xilong Fan
This work characterizes the sky localization and early warning performance of different networks of third generation gravitational wave detectors, consisting of different combinations of detectors with either the Einstein Telescope or Cosmic Explorer configuration in sites in North America, Europe, and Australia. Using a Fisher matrix method which includes the effect of earth rotation, we estimate
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Probing the Large-scale Structure of the Universe Through Gravitational Wave ObservationsResearch in Astronomy and Astrophysics (IF 1.889) Pub Date : 2022-01-21 ,DOI:10.1088/1674-4527/ac32b4Xiaoyun Shao, Zhoujian Cao, Xilong Fan, Shichao Wu
The improvements in the sensitivity of the gravitational wave (GW) network enable the detection of several large redshift GW sources by third-generation GW detectors. These advancements provide an independent method to probe the large-scale structure of the universe by using the clustering of the binary black holes (BBHs). The black hole catalogs are complementary to the galaxy catalogs because of
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Using a multi-messenger and multi-wavelength observational strategy to probe the nature of dark energy through direct measurements of cosmic expansion historyJournal of Cosmology and Astroparticle Physics (IF 7.28) Pub Date : 2021-12-20 ,DOI:10.1088/1475-7516/2021/12/042Jing-Zhao Qi, Shang-Jie Jin, Xi-Long Fan, Jing-Fei Zhang, Xin Zhang
In the near future, the redshift drift observations in optical and radio bands will provide precise measurements on H(z) covering the redshift ranges of 2
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Constraining cosmological parameters from strong lensing with DECIGO and B-DECIGO sourcesMonthly Notices of the Royal Astronomical Society (IF 5.235) Pub Date : 2021-07-31 ,DOI:10.1093/mnras/stab2221Shaoqi Hou, Xi-Long Fan, Zong-Hong Zhu
Gravitational lensing has long been used to measure or constrain cosmology models. Although the lensing effect of gravitational waves has not been observed by LIGO/Virgo, it is expected that there can be a few to a few hundred lensed events to be detected by the future Japanese space-borne interferometers DECIGO and B-DECIGO, if they are running for 4 years. Given the predicted lensed gravitational
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Hawking radiation received at infinity in higher dimensional Reissner-Nordstrm black hole spacetimes We gratefully acknowledge the financial support from Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP), Fundao de Amparo Pesquisa do Estado do Rio de Janeiro (FAPERJ), Conselho Nacional de Desenvolvimento Cientfico e Tecnolgico (CNPq), Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)Chinese Physics C (IF 2.944) Pub Date : 2021-07-28 ,DOI:10.1088/1674-1137/ac0419Kai Lin, Wei-Liang Qian, Xilong Fan, Bin Wang, Elcio Abdalla
In this study, we investigate the Hawking radiation in higher dimensional Reissner-Nordstrm black holes as received by an observer located at infinity. The frequency-dependent transmission rates, which deform the thermal radiation emitted in the vicinity of the black hole horizon, are evaluated numerically. In addition to those in four-dimensional spacetime, the calculations are extended to higher
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Inspiraling Double Compact Object Detection and Lensing Rate: Forecast for DECIGO and B-DECIGOThe Astrophysical Journal (IF 5.521) Pub Date : 2021-02-24 ,DOI:10.3847/1538-4357/abd482Aleksandra Pirkowska-Kurpas, Shaoqi Hou, Marek Biesiada, Xuheng Ding, Shuo Cao, Xilong Fan, Seiji Kawamura, Zong-Hong Zhu
Emergence of gravitational wave (GW) astronomy revived the interest in exploring the low-frequency GW spectrum inaccessible from the ground. Satellite GW observatory DECihertz Interferometer Gravitational wave Observatory (DECIGO) in its original configuration and the currently proposed smaller-scale B-DECIGO are aimed to cover the decihertz part of the GW spectrum, which fills the gap between LISA
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Lensing rates of gravitational wave signals displaying beat patterns detectable by DECIGO and B-DECIGOPhysical Review D (IF 5.407) Pub Date : 2021-02-01 ,DOI:10.1103/physrevd.103.044005Shaoqi Hou (侯绍齐), Pengbo Li (李鹏博), Hai Yu (余海), Marek Biesiada, Xi-Long Fan (范锡龙), Seiji Kawamura, Zong-Hong Zhu (朱宗宏)The coherent nature of gravitational wave emanating from a compact binary system makes it possible to detect some interference patterns in two (or more) signals registered simultaneously by the detector. Gravitational lensing effect can be used to bend trajectories of gravitational waves, which might reach the detector at the same time. Once this happens, a beat pattern may form, and can be used to ...
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Tail wavelets in merger of binary compact objectsChinese Physics C (IF 2.944) Pub Date : 2020-06-29 ,DOI:10.1088/1674-1137/44/7/071001Kai Lin, Wei-Liang Qian, Xilong Fan, Hongsheng Zhang
We present a model for tail wavelets, a phenomenon also known as "echo" in the literature. The tail wavelet may appear in signal reconnaissances in the merger of binary compact objects, including black holes and neutron stars. We show that the dark matter surrounding the compact objects lead to the speculated tail wavelet following the main gravitational wave (GW). We demonstrate that the radiation
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Some optimizations on detecting gravitational wave using convolutional neural networkFrontiers of Physics (IF 5.142) Pub Date : 2020-06-10 ,DOI:10.1007/s11467-020-0966-4Xiang-Ru Li, Wo-Liang Yu, Xi-Long Fan, G. Jogesh Babu
This work investigates the problem of detecting gravitational wave (GW) events based on simulated damped sinusoid signals contaminated with white Gaussian noise. It is treated as a classification problem with one class for the interesting events. The proposed scheme consists of the following two successive steps: decomposing the data using a wavelet packet, representing the GW signal and noise using
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Corrections to the gravitational wave phasingPhysical Review D (IF 5.407) Pub Date : 2020-04-23 ,DOI:10.1103/physrevd.101.084052Shaoqi Hou, Xi-Long Fan, Zong-Hong Zhu
The gravitational wave, traveling a long cosmological distance to reach interferometers, interacts with the (homogeneous and isotropic) cosmological background, so generally speaking, its amplitude and phase are modified in some nontrivial way. As the sensitivity of interferometers is improved, one may detect corrections to the short-wavelength approximation, which naturally includes the information
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Gravitational wave interference via gravitational lensing: Measurements of luminosity distance, lens mass, and cosmological parametersPhysical Review D (IF 5.407) Pub Date : 2020-03-05 ,DOI:10.1103/physrevd.101.064011Shaoqi Hou, Xi-Long Fan, Kai Liao, Zong-Hong Zhu
The gravitational lensing of gravitational waves might cause beat patterns detectable by interferometers. The feature of this kind of signal is the existence of the beat pattern in the early inspiral phase, followed by seemly randomly changing profile. After the strain peaks for the first time, the signal takes the usual waveform and the strains peaks for the second time. Once this signal is detected
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On the Origin of Dust in Galaxy Clusters at Low to Intermediate Redshift.Monthly Notices of the Royal Astronomical Society (IF 5.235) Pub Date : 2020-02-14 ,DOI:10.1093/mnras/staa431Eda Gjergo, Marco Palla, Francesca Matteucci, Elena Lacchin, Andrea Biviano, Xilong Fan
We compute the evolution of dust in galaxy clusters by integrating over luminosity functions the dust abundances obtained via chemical evolution models. We differentiate contributions from three galactic morphologies: elliptical, spiral, and dwarf irregular. We implement comprehensive dust evolution models that predict the total amount of dust produced and ejected into the intracluster medium by galaxies
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Constraining the Stochastic Gravitational Wave from String Cosmology with Current and Future High-frequency DetectorsThe Astrophysical Journal (IF 5.521) Pub Date : 2019-12-06 ,DOI:10.3847/1538-4357/ab4e18Yufeng Li, Xilong Fan, Lijun Gou
Pre-Big-Bang (PBB) models in string cosmology predict a relic background of gravitational wave radiation in the early universe. The spectrum of this background shows that the energy-density rises rapidly with frequency, which is an interesting target for high frequency (i.e. kHz) detectors. In this paper, we discussed the constraining power of multiple configurations of current and future gravitational
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Gravitational lensing of gravitational waves: Rotation of polarization planePhysical Review D (IF 5.407) Pub Date : 2019-09-17 ,DOI:10.1103/physrevd.100.064028Shaoqi Hou, Xi-Long Fan, Zong-Hong Zhu
Similar to the light, gravitational waves traveling in multiple paths may arrive at the same location if there is a gravitational lens on their way. Apart from the magnification of the amplitudes and the time delay between the gravitational wave rays, gravitational lensing also rotates their polarization planes and causes the gravitational wave Faraday rotation. The effect of the Faraday rotation is
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The Wave Nature of Continuous Gravitational Waves from MicrolensingThe Astrophysical Journal (IF 5.521) Pub Date : 2019-04-24 ,DOI:10.3847/1538-4357/ab1087Kai Liao, Marek Biesiada, Xi-Long Fan
Gravitational wave predicted by General Relativity is the transverse wave of spatial strain. Several gravitational waveform signals from binary black holes and from a binary neutron star system accompanied by electromagnetic counterparts have been recorded by advanced LIGO and advanced Virgo. In analogy to light, the spatial fringes of diffraction and interference should also exist as the important
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What can PSR J1640-4631 tell us about the internal physics of this neutron star?Physical Review D (IF 5.407) Pub Date : 2019-04-18 ,DOI:10.1103/physrevd.99.083011Quan Cheng, Shuang-Nan Zhang, Xiao-Ping Zheng, Xi-Long Fan
Gravitational wave emissions (GWEs) of pulsars could not only make them promising targets for continuous gravitational wave searches but also leave imprints in their timing data. We interpret the measured braking index of PSR J1640-4631 with a model involving both the GWE and dipole magnetic field decay. Combining the timing data of PSR J1640-4631 and the theory of magnetic field decay, we propose
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Constraining Cosmological Parameters in the FLRW Metric with Lensed GW+EM SignalsThe Astrophysical Journal (IF 5.521) Pub Date : 2019-03-01 ,DOI:10.3847/1538-4357/ab037eYufeng Li, Xilong Fan, Lijun Gou
We proposed a model-independent method to constrain cosmological parameters using the Distance Sum Rule of the Friedmann–Lemaitre–Robertson–Walker metric by combining the time delay distances and the comoving distances through a multi-messenger approach. The time delay distances are measured from lensed gravitational wave (GW) signals together with their corresponding electromagnetic wave (EM) counterparts
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Applying deep neural networks to the detection and space parameter estimation of compact binary coalescence with a network of gravitational wave detectorsScience China Physics, Mechanics & Astronomy (IF 5.203) Pub Date : 2019-02-18 ,DOI:10.1007/s11433-018-9321-7XiLong Fan, Jin Li, Xin Li, YuanHong Zhong, JunWei Cao
In this paper, we study an application of deep learning to the advanced laser interferometer gravitational wave observatory (LIGO) and advanced Virgo coincident detection of gravitational waves (GWs) from compact binary star mergers. This deep learning method is an extension of the Deep Filtering method used by George and Huerta (2017) for multi-inputs of network detectors. Simulated coincident time
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Anomalies in Time Delays of Lensed Gravitational Waves and Dark Matter SubstructuresThe Astrophysical Journal (IF 5.521) Pub Date : 2018-10-31 ,DOI:10.3847/1538-4357/aae30fKai Liao, Xuheng Ding, Marek Biesiada, Xi-Long Fan, Zong-Hong Zhu
The cold dark matter scenario of hierarchical large-scale structure formation predicts the existence of abundant subhalos around large galaxies. However, the number of observed dwarf galaxies is far from this theoretical prediction, suggesting that most of the subhalos could be dark or quite faint. Gravitational lensing is a powerful tool to probe the mass distribution directly irrespective of whether
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