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In addition to constructing a Galactic matter mass function free from the bias induced by the hydrogen-burning limit, gravitational microlensing allows one to construct a mass function which is less affected by the problem of unresolved…

天体物理学 · 物理学 2009-10-31 Kyongae Chang , Cheongho Han

Binary neutron-star (BNS) mergers are accompanied by multi-messenger emissions, including gravitational wave (GW), neutrino, and electromagnetic signals. Some fraction of BNS mergers may result in a rapidly spinning magnetar as a remnant,…

高能天体物理现象 · 物理学 2025-08-22 Mainak Mukhopadhyay , Shigeo S. Kimura , Brian D. Metzger

The observation of GW150914 indicated a new independent measurement of the luminosity distance of a gravitational wave event. In this paper, we constrain the anisotropy of the Universe by using gravitational wave events. We simulate…

广义相对论与量子宇宙学 · 物理学 2019-08-19 Zhi-Chao Zhao , Hai-Nan Lin , Zhe Chang

Black hole-neutron star (BHNS) binaries are amongst promising candidates for the joint detection of electromagnetic (EM) signals with gravitational waves (GWs) and are expected to be detected in the near future. Here we study the effect of…

高能天体物理现象 · 物理学 2021-12-22 Mukul Bhattacharya , Pawan Kumar , George Smoot

The multi-messenger gravitational-wave (GW) observation for binary neutron star merger events could provide a rather useful tool to explore the evolution of the universe. In particular, for the third-generation GW detectors, i.e., the…

宇宙学与河外天体物理 · 物理学 2022-09-27 Shang-Jie Jin , Rui-Qi Zhu , Ling-Feng Wang , Hai-Li Li , Jing-Fei Zhang , Xin Zhang

The discovery of gravitational waves from merging compact objects has opened up a new window to the Universe. Planned third-generation gravitational-wave detectors such as Einstein Telescope will potentially deliver hundreds of such events…

高能天体物理现象 · 物理学 2018-12-19 Sarp Akcay , Morgan Fraser , Antonio Martin-Carrillo

Gravitational waves (GWs) from binary neutron star (BNS) merger remnants complement constraints from the inspiral phase, mass-radius measurements, and microscopic theory by providing information about the neutron-star equation of state…

高能天体物理现象 · 物理学 2025-09-24 Christian Ecker , Tyler Gorda , Aleksi Kurkela , Luciano Rezzolla

(Abridged) While the gravitational-wave (GW) signal GW170817 was accompanied by a variety of electromagnetic (EM) counterparts, sufficiently high-mass binary neutron star (BNS) mergers are expected to be unable to power bright EM…

高能天体物理现象 · 物理学 2020-05-13 An Chen , Nathan K. Johnson-McDaniel , Tim Dietrich , Reetika Dudi

The gravitational-wave (GW) events, produced by the coalescence of binary neutron-stars (BNS), can be treated as the standard sirens to probe the expansion history of the Universe, if their redshifts could be determined from the…

高能天体物理现象 · 物理学 2021-08-04 Jiming Yu , Haoran Song , Shunke Ai , He Gao , Fayin Wang , Yu Wang , Youjun Lu , Wenjuan Fang , Wen Zhao

We investigate the capability of constraining the mass and redshift distributions of binary black hole systems jointly with the underlying cosmological model using one year of observations of the Einstein Telescope. To this aim, we fixed…

宇宙学与河外天体物理 · 物理学 2025-06-18 Matteo Califano , Ivan De Martino , Daniele Vernieri

In this study, we use simple performance metrics to assess the science capabilities of future ground-based gravitational-wave detector networks -- composed of A+ or Voyager upgrades to the LIGO, Virgo, and KAGRA observatories and proposed…

广义相对论与量子宇宙学 · 物理学 2024-11-13 Ssohrab Borhanian , B. S. Sathyaprakash

The detections of gravitational waves (GWs) from binary neutron star (BNS) systems and neutron star--black hole (NSBH) systems provide new insights into dense matter properties in extreme conditions and associated high-energy astrophysical…

高能天体物理现象 · 物理学 2022-02-22 Chang Liu , Lijing Shao

The knowledge about the black hole mass function (BHMF) and its evolution would help to understand the origin of the BHs and how BH binaries formed at different stages of the history of the Universe. We demonstrate the ability of future…

星系天体物理 · 物理学 2020-03-11 Xuheng Ding , Kai Liao , Marek Biesiada , Zong-Hong Zhu

Clustering measurements of Gravitational Wave (GW) mergers in Luminosity Distance Space can be used in the future as a powerful tool for Cosmology. We consider tomographic measurements of the Angular Power Spectrum of mergers both in an…

宇宙学与河外天体物理 · 物理学 2021-02-23 S. Libanore , M. C. Artale , D. Karagiannis , M. Liguori , N. Bartolo , Y. Bouffanais , N. Giacobbo , M. Mapelli , S. Matarrese

The discovery of gravitational waves, first observed in September 2015 following the merger of a binary black hole system, has already revolutionised our understanding of the Universe. This was further enhanced in August 2017, when the…

The landmark multi-messenger observations of the binary neutron star (BNS) merger GW170817 provided firm evidence that such mergers can produce short gamma-ray bursts (sGRBs). However, the limited number of BNS detections by current…

高能天体物理现象 · 物理学 2026-02-17 Alessio Ludovico De Santis , Samuele Ronchini , Filippo Santoliquido , Marica Branchesi

The observation of GW170817 binary neutron star (BNS) merger event has imposed strong bounds on the speed of gravitational waves (GWs) locally, inferring that the speed of GWs propagation is equal to the speed of light. Current GW detectors…

广义相对论与量子宇宙学 · 物理学 2020-03-10 Alexander Bonilla , Rocco D'Agostino , Rafael C. Nunes , José C. N. de Araujo

Binary neutron stars (BNSs) are among the most interesting sources for multimessenger studies. A number of recently discovered BNSs in the Milky Way by radio telescopes have added new information to the parameter distribution of the…

高能天体物理现象 · 物理学 2025-09-26 Zhiwei Chen , Jihui Zhang , Youjun Lu , Jifeng Liu , Changwen Zeng

Detection and parameter estimation of binary neutron star merger remnants can shed light on the physics of hot matter at supranuclear densities. Here we develop a fast, simple model that can generate gravitational waveforms, and show it can…

Gravitational wave signals from binary neutron star (BNS) mergers and binary low-mass black hole (BLMBH) mergers are highly similar in the early inspiral phase. Consequently, the astrophysical origin of recently detected low-mass compact…

高能物理 - 唯象学 · 物理学 2026-04-24 Sulagna Bhattacharya , Shasvath Kapadia , Basudeb Dasgupta