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Current searches for gravitational waves from compact-object binaries with the LIGO and Virgo observatories employ waveform models with spins aligned (or anti-aligned) with the orbital angular momentum. Here, we derive a new statistic to…

广义相对论与量子宇宙学 · 物理学 2016-07-14 Ian Harry , Stephen Privitera , Alejandro Bohé , Alessandra Buonanno

The recent advanced LIGO detections of gravitational waves from merging binary black holes enhance the prospect of exploring binary evolution via gravitational-wave observations of a population of compact-object binaries. In the face of…

高能天体物理现象 · 物理学 2017-01-25 Ilya Mandel , Will M. Farr , Andrea Colonna , Simon Stevenson , Peter Tiňo , John Veitch

Gravitational waves from coalescing compact binaries are one of the most promising sources for detectors such as LIGO, Virgo and GEO600. If the components of the binary posess significant angular momentum (spin), as is likely to be the case…

GW170817 showed that neutron star mergers not only emit gravitational waves but also can release electromagnetic signatures in multiple wavelengths. Within the first half of the third observing run of the Advanced LIGO and Virgo detectors,…

Searches for gravitational-wave counterparts have been going in earnest since GW170817 and the discovery of AT2017gfo. Since then, the lack of detection of other optical counterparts connected to binary neutron star or black hole - neutron…

This paper presents a parameter estimation analysis of the seven binary black hole mergers---GW170104, GW170608, GW170729, GW170809, GW170814, GW170818, and GW170823---detected during the second observing run of the Advanced LIGO and Virgo…

广义相对论与量子宇宙学 · 物理学 2019-06-05 Soumi De , Christopher M. Biwer , Collin D. Capano , Alexander H. Nitz , Duncan A. Brown

The observation of gravitational waves from multiple compact binary coalescences by the LIGO-Virgo-KAGRA detector networks has enabled us to infer the underlying distribution of compact binaries across a wide range of masses, spins, and…

广义相对论与量子宇宙学 · 物理学 2023-11-01 Anarya Ray , Ignacio Magaña Hernandez , Siddharth Mohite , Jolien Creighton , Shasvath Kapadia

We analyze the distinguishability of populations of coalescing binary neutron stars, neutron-star black-hole binaries, and binary black holes, whose gravitational-wave signatures are expected to be observed by the advanced network of…

高能天体物理现象 · 物理学 2015-05-05 Ilya Mandel , Carl-Johan Haster , Michal Dominik , Krzysztof Belczynski

Gravitational-wave (GW) measurements of physical effects such as spin-induced quadrupole moments can distinguish binaries consisting of black holes from non-black hole binaries. While these effects may be poorly constrained for single-event…

广义相对论与量子宇宙学 · 物理学 2022-06-08 Muhammed Saleem , N. V. Krishnendu , Abhirup Ghosh , Anuradha Gupta , W. Del Pozzo , Archisman Ghosh , K. G. Arun

We combine amortized neural posterior estimation with importance sampling for fast and accurate gravitational-wave inference. We first generate a rapid proposal for the Bayesian posterior using neural networks, and then attach importance…

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

The LIGO and Virgo gravitational-wave observatories have detected many exciting events over the past five years. As the rate of detections grows with detector sensitivity, this poses a growing computational challenge for data analysis. With…

天体物理仪器与方法 · 物理学 2020-08-11 Stephen R. Green , Jonathan Gair

Since the first direct detection of gravitational waves by the LIGO--Virgo collaboration in 2015, the size of the gravitational-wave transient catalog has grown to nearly 100 events, with more than as many observed during the ongoing fourth…

天体物理仪器与方法 · 物理学 2024-09-24 Colm Talbot , Amanda Farah , Shanika Galaudage , Jacob Golomb , Hui Tong

We report on the methods and results of the first dedicated search for gravitational waves emitted during the inspiral of compact binaries with spinning component bodies. We analyze 788 hours of data collected during the third science run…

广义相对论与量子宇宙学 · 物理学 2008-11-26 The LIGO Scientific Collaboration , B. Abbott

Gravitational wave measurements will provide insight into the population of coalescing compact binaries throughout the universe. We describe and demonstrate a flexible parametric method to infer the event rate as a function of compact…

广义相对论与量子宇宙学 · 物理学 2019-08-20 Daniel Wysocki , Jacob Lange , Richard O'Shaughnessy

Activities in data analysis and numerical simulation of gravitational waves have to date largely proceeded independently. In this work we study how waveforms obtained from numerical simulations could be effectively used within the data…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Thomas Baumgarte , Patrick Brady , Jolien D E Creighton , Luis Lehner , Frans Pretorius , Ricky DeVoe

The LIGO-Virgo-KAGRA Collaboration has detected over one hundred compact binary mergers in gravitational waves, but the formation history of these binaries remains an open question. Finding the host galaxies of these mergers will provide…

高能天体物理现象 · 物理学 2024-02-16 Geoffrey Mo , Hsin-Yu Chen

We present the results on the search for the coalescence of compact binary mergers using convolutional neural networks and the LIGO/Virgo data for the O3 observation period. Two-dimensional images in time and frequency are used as input.…

广义相对论与量子宇宙学 · 物理学 2024-06-14 Alexis Menéndez-Vázquez , Marc Andrés-Carcasona , Mario Martínez , Lluïsa-Maria Mir

With the discovery of the binary black hole coalescence GW150914, the era of gravitational-wave astrophysics has started. Gravitational-wave signals emitted by compact binary coalescences will be detected in large number by LIGO and Virgo…

广义相对论与量子宇宙学 · 物理学 2017-03-15 Salvatore Vitale , Ryan Lynch , Riccardo Sturani , Philip Graff

The success of the multi-messenger astronomy relies on gravitational-wave observatories like LIGO and Virgo to provide prompt warning of merger events involving neutron stars (including both binary neutron stars and…

广义相对论与量子宇宙学 · 物理学 2021-09-15 Hang Yu , Rana X. Adhikari , Ryan Magee , Surabhi Sachdev , Yanbei Chen