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A significant number of stellar binary black hole (sBBH) mergers may be lensed and detected by the third generation gravitational wave (GW) detectors. Their lensed host galaxies may be detectable, which thus helps to accurately localize…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Zhiwei Chen , Youjun Lu , Yuetong Zhao

The Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) discovered gravitational waves (GWs) from a binary black hole merger in 2015 September and may soon observe signals from neutron star mergers. There is considerable…

We explore the connection between the gravitational wave (GW) merger rates of stellar-mass binary black holes (BBH) and galaxy properties. We do this by generating populations of stars using the binary population synthesis code COMPAS and…

Astrophysics of Galaxies · Physics 2023-06-28 Liana Rauf , Cullan Howlett , Tamara M. Davis , Claudia D. P. Lagos

An up-to-date catalog of nearby galaxies considered as hosts of binary compact objects is provided with complete information about sky position, distance, extinction-corrected blue luminosity and error estimates. With our current…

The primary formation channel for the stellar-mass Binary Black Holes which have been detected merging by the LIGO-Virgo- KAGRA (LVK) collaboration is yet to be discerned. One of the main reason is that the detection of an Electromagnetic…

High Energy Astrophysical Phenomena · Physics 2025-01-06 Niccolò Veronesi , Sjoert van Velzen , Elena Maria Rossi

The merging black hole binaries detected by the LIGO-Virgo-KAGRA (LVK) gravitational-wave observatories, may help us shed light on how such binaries form. In addition, these detections can help us probe the hypothesized primordial black…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-21 Mehdi El Bouhaddouti , Ilias Cholis

Recent observations have accumulated compelling evidence that some short gamma-ray bursts (SGRBs) are associated with the mergers of neutron star (NS) binaries. This would indicate that the SGRB event is associated with a gravitational-wave…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-11 Samaya Nissanke , Daniel E. Holz , Neal Dalal , Scott A. Hughes , Jonathan L. Sievers , Christopher M. Hirata

A small fraction of gravitational-wave (GW) signals from binary black holes (BBHs) will be gravitationally lensed by intervening galaxies and galaxy clusters. Strong lensing will produce multiple identical copies of the GW signal arriving…

General Relativity and Quantum Cosmology · Physics 2026-02-09 Koustav N. Maity , Souvik Jana , Tejaswi Venumadhav , Ankur Barsode , Parameswaran Ajith

Lensed gravitational wave (GW) events are expected to be powerful new probes of cosmology, contingent on redshift measurement by electromagnetic observations. Host galaxy identification is thus crucial but challenging due to poor…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-15 Zhiwei Chen , Qingjuan Yu , Youjun Lu , Xiao Guo

Gravitational waves (GWs) from the compact binary coalescence provide direct measurement of the luminosity distance to the event. However, unlike binary neutron stars, redshift information is not available from GW observations of binary…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-03 Tathagata Ghosh , Surhud More

Binary black hole (BBH) mergers,, an important source of gravitational-waves(GWs), are assumed to be hosted in galaxies. The probability of a galaxy to host a BBH is related to its properties, for example stellar mass and star formation…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-22 Zhuotao Li , Rachel Gray , Ik Siong Heng

We present a search for merging compact binary gravitational-wave sources that produce a signal appearing solely or primarily in a single detector. Past analyses have heavily relied on coincidence between multiple detectors to reduce…

High Energy Astrophysical Phenomena · Physics 2020-08-28 Alexander H. Nitz , Thomas Dent , Gareth S. Davies , Ian Harry

Observations of gravitational waves (GWs) from merging compact binaries have become a regular occurrence. The continued advancement of the LIGO-Virgo-KAGRA (LVK) Collaboration detectors have now produced a catalog of over 90 such mergers,…

High Energy Astrophysical Phenomena · Physics 2024-04-01 Jaxen Godfrey , Bruce Edelman , Ben Farr

Merging compact binaries are the one source of gravitational radiation so far identified. Because short-period systems which will merge in less than a Hubble time have already been observed as binary pulsars, they are important both as…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Marcel Zemp , Enrico Ramirez-Ruiz , Jürg Diemand

While the LIGO/Virgo/KAGRA (LVK) gravitational wave (GW) detectors have detected over 300 binary black hole (BBH) mergers to date, the first confirmation of an electromagnetic (EM) counterpart to such an event remains elusive. Previous…

High Energy Astrophysical Phenomena · Physics 2026-03-04 Tomás Cabrera , Antonella Palmese , Maya Fishbach

The accretion disks of active galactic nuclei (AGN) are widely considered the ideal environments for binary black hole (BBH) mergers and the only plausible sites for their electromagnetic (EM) counterparts. Graham et al.(2023) identified…

High Energy Astrophysical Phenomena · Physics 2025-07-04 Lei He , Zhengyan Liu , Rui Niu , Bingzhou Gao , Mingshen Zhou , Purun Zou , Runduo Liang , Wen Zhao , Ning Jiang , Zhen-Yi Cai , Zi-Gao Dai , Ye-Fei Yuan

One of the goals of the current LIGO-GEO-Virgo science run is to identify transient gravitational wave (GW) signals in near real time to allow follow-up electromagnetic (EM) observations. An EM counterpart could increase the confidence of…

General Relativity and Quantum Cosmology · Physics 2011-11-30 Laura K Nuttall , Patrick J Sutton

In the upcoming gravitational wave (GW) observing runs, identifying host galaxies is crucial as it provides essential redshift information and enables the use of GW events as standard sirens. However, pinpointing host galaxies remains…

High Energy Astrophysical Phenomena · Physics 2024-08-05 Mankeun Jeong , Myungshin Im

The Advanced LIGO and Virgo gravitational wave observatories have opened a new window with which to study the inspiral and mergers of binary compact objects. These observations are most powerful when coordinated with multi-messenger…

General Relativity and Quantum Cosmology · Physics 2021-10-29 Zhi-Qiang You , Gregory Ashton , Xing-Jiang Zhu , Eric Thrane , Zong-Hong Zhu

The formation channels of binary black hole (BBH) mergers detected by the LIGO/Virgo/KAGRA (LVK) network remain uncertain. While BBH mergers occurring inside active galactic nucleus (AGN) disks may interact with surrounding gas and generate…

High Energy Astrophysical Phenomena · Physics 2026-03-19 Liang-Gui Zhu , Lei He , Xian Chen , Wen Zhao