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Coherent WaveBurst is a generic, multidetector gravitational wave burst search based on the excess power approach. The coherent WaveBurst algorithm currently employed in the all-sky short-duration gravitational wave burst search uses a…

General Relativity and Quantum Cosmology · Physics 2022-04-12 Dixeena Lopez , V. Gayathri , Archana Pai , Ik Siong Heng , Chris Messenger , Sagar Kumar Gupta

The output of gravitational-wave interferometers, such as LIGO and Virgo, can be highly non-stationary. Broadband detector noise can affect the detector sensitivity on the order of tens of seconds. Gravitational-wave transient searches,…

Instrumentation and Methods for Astrophysics · Physics 2020-08-07 S. Mozzon , L. K. Nuttall , A. Lundgren , T. Dent , S. Kumar , A. H. Nitz

The coalescences of massive black hole binaries are one of the main targets of space-based gravitational wave observatories. Such gravitational wave sources are expected to be accompanied by electromagnetic emissions. Low latency detection…

Instrumentation and Methods for Astrophysics · Physics 2023-04-18 Wen-Hong Ruan , He Wang , Chang Liu , Zong-Kuan Guo

By now, tens of gravitational-wave (GW) events have been detected by the LIGO and Virgo detectors. These GWs have all been emitted by compact binary coalescence, for which we have excellent predictive models. However, there might be other…

Instrumentation and Methods for Astrophysics · Physics 2020-11-25 Tom Marianer , Dovi Poznanski , J. Xavier Prochaska

Gravitational wave echoes have been proposed as a smoking-gun signature of exotic compact objects with near-horizon structure. Recently there have been observational claims that echoes are indeed present in stretches of data from Advanced…

General Relativity and Quantum Cosmology · Physics 2020-03-11 Ka Wa Tsang , Archisman Ghosh , Anuradha Samajdar , Katerina Chatziioannou , Simone Mastrogiovanni , Michalis Agathos , Chris Van Den Broeck

Gravitational waves (GWs) from compact binary coalescences (CBCs) offer insights into the universe expansion. The spectral siren method, used without electromagnetic counterparts (EMC), infers cosmic expansion (Hubble constant) by relating…

General Relativity and Quantum Cosmology · Physics 2024-05-28 Grégoire Pierra

Gravitational waves (GWs) from stellar-mass compact binary coalescences (CBCs) are expected to be strongly lensed when encountering large agglomerations of matter, such as galaxies or clusters. Searches for strongly lensed GWs have been…

General Relativity and Quantum Cosmology · Physics 2023-06-08 Srashti Goyal , Shasvath Kapadia , Jean-Rene Cudell , Alvin K. Y. Li , Juno C. L. Chan

Gravitational waves from precessing binary black holes exhibit new features that are absent in non-precessionary systems. All current waveform models take into account only the modulation of the signal due to precession. In this letter, we…

General Relativity and Quantum Cosmology · Physics 2022-12-22 Cheng Zhang , Wen-Biao Han , Shu-Cheng Yang

In this thesis we consider the data analysis problem of detecting gravitational waves emitted by inspiraling binary systems. Detection of gravitational waves will open a new window on the Universe enabling direct detection of systems such…

General Relativity and Quantum Cosmology · Physics 2010-02-10 Gareth Jones

The luminosity distance is a key observable of gravitational-wave (GW) observations. We demonstrate how one can correctly retrieve the luminosity distance of compact binary coalescences (CBCs) if the GW signal is strongly lensed. We perform…

General Relativity and Quantum Cosmology · Physics 2024-02-14 Kyungmin Kim , Eungwang Seo , Chunglee Kim

Joint electromagnetic and gravitational-wave (GW) observation is a major goal of both the GW astronomy and electromagnetic astronomy communities for the coming decade. One way to accomplish this goal is to direct follow-up of GW candidates.…

Instrumentation and Methods for Astrophysics · Physics 2018-05-23 Leo Tsukada , Kipp Cannon , Chad Hanna , Drew Keppel , Duncan Meacher , Cody Messick

Gravitational waves from the coalescence of compact-binary sources are now routinely observed by Earth bound detectors. The most sensitive search algorithms convolve many different pre-calculated gravitational waveforms with the detector…

Instrumentation and Methods for Astrophysics · Physics 2022-02-11 Marlin B. Schäfer , Alexander H. Nitz

We demonstrate the implementation of a sensitive search pipeline for gravitational waves from coalescing binary black holes whose components have spins aligned with the orbital angular momentum. We study the pipeline recovery of simulated…

We describe a hierarchical data analysis pipeline for coherently searching for gravitational wave (GW) signals from non-spinning compact binary coalescences (CBCs) in the data of multiple earth-based detectors. It assumes no prior…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 Sukanta Bose , Thilina Dayanga , Shaon Ghosh , Dipongkar Talukder

Orbital eccentricity in compact binary mergers carries crucial information about the binary's formation and environment. There are emerging signs that some of the mergers detected by the LIGO and Virgo gravitational wave detectors could…

In order to perform Bayesian parameter estimation to infer the source properties of gravitational waves from compact binary coalescences (CBCs), the noise characteristics of the detector must be understood. It is typically assumed that the…

High Energy Astrophysical Phenomena · Physics 2020-07-07 Sylvia Biscoveanu , Carl-Johan Haster , Salvatore Vitale , Jonathan Davies

We present the details of a method for conducting a targeted, coherent search for compact binary coalescences. The search is tailored to be used as a followup to electromagnetic transients such as Gamma Ray Bursts. We derive the coherent…

General Relativity and Quantum Cosmology · Physics 2012-07-27 Ian Harry , Stephen Fairhurst

We assess the detectability of the gravitational wave signals from highly eccentric compact binaries. We use a simple model for the inspiral, merger, and ringdown of these systems. The model is based on mapping the binary to an effective…

General Relativity and Quantum Cosmology · Physics 2013-02-14 William E. East , Sean T. McWilliams , Janna Levin , Frans Pretorius

Inspiralling compact binaries are expected to circularize before their gravitational-wave signals reach the sensitive frequency band of ground-based detectors. Current searches for gravitational waves from compact binaries using the LIGO…

General Relativity and Quantum Cosmology · Physics 2010-04-06 Duncan A. Brown , Peter J. Zimmerman