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We review and expand on a Bayesian model selection technique for the detection of gravitational waves from neutron star ring-downs associated with pulsar glitches. The algorithm works with power spectral densities constructed from…

General Relativity and Quantum Cosmology · Physics 2008-11-26 J Clark , I S Heng , M Pitkin , G Woan

Posterior distributions on parameters computed from experimental data using Bayesian techniques are only as accurate as the models used to construct them. In many applications these models are incomplete, which both reduces the prospects of…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Christopher J. Moore , Jonathan R. Gair

Cosmic strings represent an attractive source of gravitational waves (GWs) from the early Universe. However, numerical computation of the GW signal from cosmic strings requires the evaluation of complicated integral and sum expressions,…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-18 Kai Schmitz , Tobias Schroeder

The LIGO-Virgo collaboration uses a variety of techniques to detect and characterize gravitational waves. One approach is to use templates - models for the signals derived from Einstein's equations. Another approach is to extract the…

General Relativity and Quantum Cosmology · Physics 2018-06-06 Margaret Millhouse , Neil J. Cornish , Tyson Littenberg

As we move into an era of more sensitive pulsar timing array data sets, we may be able to resolve individual gravitational wave sources from the stochastic gravitational wave background. While some of these sources, like orbiting massive…

General Relativity and Quantum Cosmology · Physics 2024-12-02 Jacob A. Taylor , Rand Burnette , Bence Bécsy , Neil J. Cornish

We present a new multivariate regression model for analysis and parameter estimation of gravitational waves observed from well but not perfectly modeled sources such as core-collapse supernovae. Our approach is based on a principal…

General Relativity and Quantum Cosmology · Physics 2014-12-17 William J. Engels , Raymond Frey , Christian D. Ott

Sco X-1, the brightest low mass X-ray binary, is likely to be a source for gravitational wave emission. In one mechanism, emission of a gravitational wave arrests the increase in spin frequency due to the accretion torque in a low mass…

General Relativity and Quantum Cosmology · Physics 2009-02-23 Kazuhiro Hayama , Shantanu Desai , Soumya D. Mohanty , Malik Rakhmanov , Tiffany Summerscales , Sanichiro Yoshida

Transient gravitational-wave searches can be divided into two main families of approaches: modelled and unmodelled searches, based on matched filtering techniques and time-frequency excess power identification respectively. The former,…

Instrumentation and Methods for Astrophysics · Physics 2018-07-25 P. Bacon , Gayathri V. , E. Chassande-Mottin , A. Pai , F. Salemi , G. Vedovato

A gravitational wave stochastic background of astrophysical origin may have resulted from the superposition of a large number of unresolved sources since the beginning of stellar activity. Its detection would put very strong constrains on…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Tania Regimbau

The production of a stochastic background of gravitational waves is a fundamental prediction of any cosmological inflationary model. The features of such a signal encode unique information about the physics of the Early Universe and beyond,…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-05 Maria Chiara Guzzetti , Nicola Bartolo , Michele Liguori , Sabino Matarrese

Gravitational wave astronomy is just beginning, after the recent success of the four direct detections of binary black hole (BBH) mergers, the first observation from a binary neutron star inspiral and with the expectation of many more…

Instrumentation and Methods for Astrophysics · Physics 2018-01-23 I. Di Palma , M. Drago

We study the possibility to detect the gravitational wave background generated by all the neutron stars in the Galaxy with only one gravitational wave interferometric detector. The proposed strategy consists in squaring the detector's…

Astrophysics · Physics 2014-10-13 A. Giazotto , S. Bonazzola , E. Gourgoulhon

We analyze theoretical models of gravitational waves generation in the interaction of high intensity laser with matter, namely ablation and piston models. We analyse the generated gravitational waves in linear approximation of gravitational…

General Relativity and Quantum Cosmology · Physics 2016-08-18 Hedvika Kadlecová , Ondřej Klimo , Stefan Weber , Georg Korn

Since the initial discovery of gravitational-waves from merging black holes, the LIGO Scientific Collaboration together with Virgo and KAGRA have published 90 gravitational-wave observations of compact binary mergers in the…

General Relativity and Quantum Cosmology · Physics 2022-09-09 Vera Del Favero

Accurate parameter estimation of gravitational waves from coalescing compact binary sources is a key requirement for gravitational-wave astronomy. Evaluating the posterior probability density function of the binary's parameters (component…

High Energy Astrophysical Phenomena · Physics 2015-06-12 R. J. E. Smith , K. Cannon , C. Hanna , D. Keppel , I. Mandel

We present a unified description of gravitational-wave data analysis that unites the template-based analysis used to detect deterministic signals from well-modeled sources, such as binary-black-hole mergers, with the cross-correlation…

General Relativity and Quantum Cosmology · Physics 2015-06-15 Neil J. Cornish , Joseph D. Romano

Ultralight bosons can form macroscopic gravitational-atom clouds around rotating black holes via superradiance, sourcing quasi-monochromatic gravitational waves through level transitions and annihilation. Primordial black holes provide a…

General Relativity and Quantum Cosmology · Physics 2026-04-14 Henry Su , Lucas Brown , Christopher Ewasiuk , Stefano Profumo

We present a filter for detecting gravitational wave signals from burst sources. This filter requires only minimal advance knowledge of the expected signal: i.e. the signal's frequency band and time duration. It consists of a threshold on…

General Relativity and Quantum Cosmology · Physics 2011-07-19 Warren G. Anderson , Patrick R. Brady , Jolien D. E. Creighton , Eanna E. Flanagan

We summarize our current understanding of gravitational wave emission from core-collapse supernovae. We review the established results from multi-dimensional simulations and, wherever possible, provide back-of-the-envelope calculations to…

Solar and Stellar Astrophysics · Physics 2022-04-05 Ernazar Abdikamalov , Giulia Pagliaroli , David Radice

We present results from detailed general relativistic simulations of stellar core collapse to a proto-neutron star, using two different microphysical nonzero-temperature nuclear equations of state as well as an approximate description of…

Astrophysics · Physics 2009-02-06 Harald Dimmelmeier , Christian D. Ott , Andreas Marek , Hans-Thomas Janka