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We analytically discuss probability distribution function (PDF) for inclinations of merging compact binaries whose gravitational waves are coherently detected by a network of ground based interferometers. The PDF would be useful for…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Naoki Seto

The constancy of the gravitational constant $G$ is a cornerstone of the strong equivalence principle and of general relativity, yet its possible temporal variation remains a key target in tests of fundamental physics. Gravitational-wave…

General Relativity and Quantum Cosmology · Physics 2026-03-27 Jie Zhu , Hanlin Song , Zhenwei Lyu , Hao Li , Peixiang Ji , Jun-Chen Wang , Haobo Yan , Bo-Qiang Ma

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…

General Relativity and Quantum Cosmology · Physics 2025-07-28 Arnab Dhani , Alessandro Camilletti , David Radice , Rahul Kashyap , Bangalore Sathyaprakash , Domenico Logoteta , Albino Perego

In low-mass binary systems, mass transfer is likely to occur via a slow and dense stellar wind when one of the stars is in the AGB phase. Observations show that many binaries that have undergone AGB mass transfer have orbital periods of…

Solar and Stellar Astrophysics · Physics 2018-10-17 M. I. Saladino , O. R. Pols , E. van der Helm , I. Pelupessy , S. Portegies Zwart

A new generation of ground-based interferometric detectors for gravitational waves is currently under construction or has entered the commissioning phase (LIGO, VIRGO, GEO600, TAMA). We study the most promising candidate sources for these…

Astrophysics · Physics 2014-10-13 Krzysztof Belczynski , Vassiliki Kalogera , Tomasz Bulik

In this follow-up paper, we continue our study of the effect of using knowledge from electromagnetic observations in the gravitational wave (GW) data analysis of Galactic binaries that are predicted to be observed by the new \textit{Laser…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 Sweta Shah , Gijs Nelemans , Marc van der Sluys

Rapid binary population synthesis codes are often used to investigate the evolution of compact-object binaries. They typically rely on analytical fits of single-star evolutionary tracks and parameterized models for interactive phases of…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Monica Gallegos-Garcia , Christopher P L Berry , Pablo Marchant , Vicky Kalogera

Gravitational wave (GW) astronomy has consolidated its role as a new observational window to reveal the properties of compact binaries in the Universe. In particular, the discovery of the first binary neutron star coalescence, GW170817, led…

General Relativity and Quantum Cosmology · Physics 2018-12-26 Anuradha Samajdar , Tim Dietrich

Circumbinary disks are found in a variety of astrophysical scenarios, spanning binary star formation to accreting supermassive black hole binaries. The interaction with a circumbinary disk can yield opposite effects on the binary orbit…

Ultracompact Galactic binaries with orbital periods below an hour are among the strongest persistent gravitational-wave (GW) sources in the mHz band and will constitute the dominant population detected by the Laser Interferometer Space…

The nonlinear aspect of gravitational wave generation that produces power at harmonics of the orbital frequency, above the fundamental quadrupole frequency, is examined to see what information about the source is contained in these higher…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Ronald W. Hellings , Thomas A. Moore

We compute different sets of stellar evolutionary tracks in order to quantify the energy, mass, and metals yielded by massive main-sequence and post-main-sequence winds. Our aim is to investigate the impact of binary systems and of a…

Astrophysics of Galaxies · Physics 2022-04-26 Yvonne A. Fichtner , Luca Grassitelli , Emilio Romano-Díaz , Cristiano Porciani

Globular clusters are considered to be likely breeding grounds for compact binary mergers. In this paper, we demonstrate how the gravitational-wave signals produced by compact object mergers can act as tracers of globular cluster formation…

High Energy Astrophysical Phenomena · Physics 2021-07-14 Isobel M. Romero-Shaw , Kyle Kremer , Paul D. Lasky , Eric Thrane , Johan Samsing

We discuss two approaches to searches for gravitational-wave (GW) and electromagnetic (EM) counterparts of binary neutron star mergers. The first approach relies on triggering archival searches of GW detector data based on detections of EM…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Ilya Mandel , Luke Z. Kelley , Enrico Ramirez-Ruiz

Relative binning is a new method for fast and accurate evaluation of the likelihood of gravitational wave strain data. This technique can be used to produce reliable posterior distributions for compact object mergers with very moderate…

General Relativity and Quantum Cosmology · Physics 2018-08-03 Liang Dai , Tejaswi Venumadhav , Barak Zackay

Gravitational-wave observations of quasicircular compact binary mergers imply complicated posterior measurements of their parameters. Though Gaussian approximations to the pertinent likelihoods have decades of history in the field, the…

Instrumentation and Methods for Astrophysics · Physics 2022-12-08 Vera Delfavero , Richard O'Shaughnessy , Daniel Wysocki , Anjali Yelikar

We perform tests of General Relativity (GR) with gravitational waves (GWs) from the inspiral stage of compact binaries using a theory-independent framework, which adds generic phase corrections to each multipole of a GR waveform model in…

General Relativity and Quantum Cosmology · Physics 2023-04-05 Ajit Kumar Mehta , Alessandra Buonanno , Roberto Cotesta , Abhirup Ghosh , Noah Sennett , Jan Steinhoff

Although planets have been found orbiting binary systems, whether they can survive binary interactions is debated. While the tightest-orbit binaries should host the most dynamically stable and long-lived circumbinary planetary systems, they…

Earth and Planetary Astrophysics · Physics 2024-10-28 Zepei Xing , Santiago Torres , Ylva Götberg , Alessandro A. Trani , Valeriya Korol , Jorge Cuadra

The mass transfer process is prevalent during the inspiral phase of compact binary systems. Our study focuses on systems comprising low-mass white dwarfs, particularly in neutron star-white dwarf binaries and double white dwarf binaries,…

General Relativity and Quantum Cosmology · Physics 2025-02-28 Zi-Han Zhang , Tan Liu , Shenghua Yu , Zong-Kuan Guo

Recent discoveries of gravitational wave (GW) signals from astrophysical compact binary systems of neutron stars and black holes have firmly established them as prime sources for advanced GW detectors. Theoretical templates of expected…

General Relativity and Quantum Cosmology · Physics 2019-02-04 Soumen Roy , Anand S. Sengupta , Parameswaran Ajith
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