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Next-generation gravitational-wave detectors like the Einstein Telescope and Cosmic Explorer, currently in their preparatory phase, have the potential to significantly improve our understanding of astrophysics, cosmology and fundamental…

广义相对论与量子宇宙学 · 物理学 2025-01-23 Michael Ebersold , Tania Regimbau , Nelson Christensen

Searches for gravitational waves from compact-binary mergers, which to date have reported $\sim100$ observations, have previously ignored binaries whose components are both consistent with the mass of neutron stars $(1 M_\odot$ to $ 2…

高能天体物理现象 · 物理学 2024-02-08 Yi-Fan Wang , Alexander H. Nitz

We study the properties of remnants formed in prompt-collapse binary neutron star mergers. We consider non-spinning binaries over a range of total masses and mass ratios across a set of 22 equations of state, totaling 107 numerical…

广义相对论与量子宇宙学 · 物理学 2025-07-28 Arnab Dhani , Alessandro Camilletti , David Radice , Rahul Kashyap , Bangalore Sathyaprakash , Domenico Logoteta , Albino Perego

GW170817 began gravitational-wave multimessenger astronomy. However, GW170817 will not be representative of detections in the coming years -- typical gravitational-wave sources will be closer the detection horizon, have larger localization…

高能天体物理现象 · 物理学 2020-10-21 Chris Pankow , Monica Rizzo , Kaushik Rao , Christopher P. L. Berry , Vassiliki Kalogera

The equation of state plays a critical role in the physics of the merger of two neutron stars. Recent numerical simulations with microphysical equation of state suggest the outcome of such events depends on the mass of the neutron stars.…

高能天体物理现象 · 物理学 2015-06-22 J. Clark , A. Bauswein , L. Cadonati , H. -T. Janka , C. Pankow , N. Stergioulas

As current gravitational wave (GW) detectors increase in sensitivity, and particularly as new instruments are being planned, there is the possibility that ground-based GW detectors will observe GWs from highly eccentric neutron star…

Wide, highly eccentric ($e>0.9$) compact binaries can naturally arise as progenitors of gravitational wave (GW) mergers. These systems are expected to have a significant population in the mHz band (e.g., $\sim 3-45$ detectable stellar-mass…

高能天体物理现象 · 物理学 2026-05-28 Zeyuan Xuan , Smadar Naoz , Alvin K. Y. Li , Bence Kocsis , Erik Petigura , Alan M. Knee , Jess McIver , Kyle Kremer , Will M. Farr

Mergers of white dwarf binaries are a possible progenitor channel for Type Ia supernovae. While white dwarfs are abundant in the universe and relatively well understood, their gravitational wave signals have not yet been directly observed.…

广义相对论与量子宇宙学 · 物理学 2025-10-24 Giona Sala , Chiara Brandenstein , Sebastian Baum , Peter W. Graham

Gravitational waves generated by the final merger of compact binary systems depend on the structure of the binary's members. If the binary contains neutron stars, measuring such waves can teach us about the properties of matter at extreme…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Scott A. Hughes

We introduce an efficient and straightforward technique for rapidly detecting gravitational waves from compact binary mergers. We show that this method achieves the low latencies required to alert electromagnetic partners of candidate…

广义相对论与量子宇宙学 · 物理学 2018-08-08 Alexander H. Nitz , Tito Dal Canton , Derek Davis , Steven Reyes

A binary neutron star (BNS) merger event has recently been observed in gravitational waves (GWs). As in the case of binary black holes, GWs generated by BNS consist of inspiral, merger, and post-merger components. Detecting the latter is…

广义相对论与量子宇宙学 · 物理学 2018-02-07 Huan Yang , Vasileios Paschalidis , Kent Yagi , Luis Lehner , Frans Pretorius , Nicolas Yunes

We study the detectability of postmerger QCD phase transitions in neutron star binaries with next-generation gravitational-wave detectors Cosmic Explorer and Einstein Telescope. We perform numerical relativity simulations of neutron star…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Aviral Prakash , Ish Gupta , Matteo Breschi , Rahul Kashyap , David Radice , Sebastiano Bernuzzi , Domenico Logoteta , B. S. Sathyaprakash

We present a robust method to characterize the gravitational wave emission from the remnant of a neutron star coalescence. Our approach makes only minimal assumptions about the morphology of the signal and provides a full posterior…

广义相对论与量子宇宙学 · 物理学 2018-01-03 Katerina Chatziioannou , James Alexander Clark , Andreas Bauswein , Margaret Millhouse , Tyson B. Littenberg , Neil Cornish

Gravitational waves emitted during compact binary coalescences are a promising source for gravitational-wave detector networks. The accuracy with which the location of the source on the sky can be inferred from gravitational wave data is a…

广义相对论与量子宇宙学 · 物理学 2015-06-17 K. Grover , S. Fairhurst , B. F. Farr , I. Mandel , C. Rodriguez , T. Sidery , A. Vecchio

We explore the localization of compact binary coalescences with ground-based gravitational-wave detector networks. We simulate tens of thousands of binary events, and present the distributions of localization sky areas and localization…

高能天体物理现象 · 物理学 2016-12-06 Hsin-Yu Chen , Daniel E. Holz

The continuous improvement in localization errors (sky position and distance) in real time as LISA observes the gradual inspiral of a supermassive black hole (SMBH) binary can be of great help in identifying any prompt electromagnetic…

天体物理学 · 物理学 2008-11-26 Bence Kocsis , Zoltán Haiman , Kristen Menou , Zsolt Frei

The unprecedented range of second-generation gravitational-wave (GW) observatories calls for refining the predictions of potential sources and detection rates. The coalescence of double compact objects (DCOs)---i.e., neutron star-neutron…

高能天体物理现象 · 物理学 2015-07-07 M. Dominik , E. Berti , R. O'Shaughnessy , I. Mandel , K. Belczynski , C. Fryer , D. Holz , T. Bulik , F. Pannarale

Ground-based gravitational-wave detectors like Cosmic Explorer can be tuned to improve their sensitivity at high or low frequencies by tuning the response of the signal extraction cavity. Enhanced sensitivity above 2 kHz enables…

广义相对论与量子宇宙学 · 物理学 2022-07-13 Varun Srivastava , Derek Davis , Kevin Kuns , Philippe Landry , Stefan Ballmer , Matt Evans , Evan Hall , Jocelyn Read , B. S. Sathyaprakash

Gravitational wave observations of eccentric binary black hole mergers will provide unequivocal evidence for the formation of these systems through dynamical assembly in dense stellar environments. The study of these astrophysically…

广义相对论与量子宇宙学 · 物理学 2019-09-06 E. A. Huerta , Roland Haas , Sarah Habib , Anushri Gupta , Adam Rebei , Vishnu Chavva , Daniel Johnson , Shawn Rosofsky , Erik Wessel , Bhanu Agarwal , Diyu Luo , Wei Ren

Compact binaries that emit gravitational waves in the sensitivity band of ground-based detectors can have non-negligible eccentricities just prior to merger, depending on the formation scenario. We develop a purely analytic,…

广义相对论与量子宇宙学 · 物理学 2014-10-15 E. A. Huerta , Prayush Kumar , Sean T. McWilliams , Richard O'Shaughnessy , Nicolas Yunes