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The properties of potential gravitational wave sources like neutron stars, black holes and binary systems are reviewed, as well as the different contributions (stochastic and continuous) to the gravitational wave background. The…

Astrophysics · Physics 2007-05-23 J. A. de Freitas Pacheco

A review is given of recent research on gravitational waves from compact bodies and its relevance to the LIGO/VIRGO international network of high-frequency (10 to 10,000 Hz) gravitational-wave detectors, and to the proposed LISA system of…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Kip S. Thorne

This paper presents an estimate for the spectral properties of the stochastic background of gravitational waves emitted by a population of hot, young, rapidly rotating neutron stars throughout the Universe undergoing $f$-mode instabilities,…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-03 Marco Surace , Kostas D. Kokkotas , Pantelis Pnigouras

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

The possibility of exciting the g-modes of a solar-type star as a consequence of the gravitational interaction with a close companion (a planet or a brown dwarf) is studied by a perturbative approach. The amplitude of the emitted…

Astrophysics · Physics 2009-10-31 Emanuele Berti , Valeria Ferrari

A gravitational wave passing through a pulsar will lead to a variation in the moment of inertia of the pulsar affecting its rotation. This will affect the extremely accurately measured spin rate of the pulsar as well as its pulse profile…

High Energy Astrophysical Phenomena · Physics 2021-05-17 Arpan Das , Shreyansh S. Dave , Oindrila Ganguly , Ajit M. Srivastava

White dwarf binaries are the most common compact binaries in the Universe and are especially important for low-frequency gravitational wave detectors such as LISA. There are a number of open questions about binary evolution and the Galactic…

Astrophysics · Physics 2008-11-26 G. Nelemans

We estimate the upper frequency cutoff of the galactic white dwarf binaries gravitational wave background that will be observable by the LISA detector. This is done by including the modulation of the gravitational wave signal due the motion…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Andrzej Krolak , Massimo Tinto

In the present work we investigate the r-mode instability windows, spindown and spindown rates of sub- and super-Chandrasekhar magnetized white dwarfs in presence of Landau quantization of the electron gas and magnetic braking. The…

Solar and Stellar Astrophysics · Physics 2020-02-26 Somnath Mukhopadhyay , Sarmistha Banik

The Rossby mode (r-mode) perturbations in pulsars as a steady gravitational wave (GW) sources have been explored. The time evolution and the intensity of the emitted GWs in terms of the strain tensor amplitude have been estimated with the…

Nuclear Theory · Physics 2023-05-01 Joydev Lahiri , D. N. Basu

To investigate how chaos affects gravitational waves, we study the gravitational waves from a spinning test particle moving around a Kerr black hole, which is a typical chaotic system. To compare the result with those in non-chaotic…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Kenta Kiuchi , Kei-ichi Maeda

We study the evolution and gravitational wave emission of white dwarf -- black hole accreting binaries with a semi-analytical model. These systems will evolve across the mHz gravitational wave frequency band and potentially be detected by…

Solar and Stellar Astrophysics · Physics 2021-03-15 Laura Sberna , Alexandre Toubiana , M. Coleman Miller

Binary systems of compact objects are strong emitters of gravitational waves whose amplitude depends on the binary orbital parameters as the component mass, the orbital semi-major axis and eccentricity. Here, in addition to the famous…

Astrophysics · Physics 2007-05-23 P. Longo , G. Congedo , A. Nucita , F. De Paolis , G. Ingrosso

The LISA mission will observe gravitational waves emitted from tens of thousands of galactic binaries, in particular white dwarf binary systems. These objects are known to have intense magnetic fields. However, these fields are usually not…

General Relativity and Quantum Cosmology · Physics 2021-09-15 Adrien Bourgoin , Christophe Le Poncin-Lafitte , Stéphane Mathis , Marie-Christine Angonin

Gravitational waves are perturbations in the spacetime that propagate at the speed of light. The study of such phenomenon is interesting because many cosmological processes and astrophysical objects, such as binary systems, are potential…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-27 E. F. D. Evangelista , J. C. N. de Araujo

Experimental projects using spherical antennas to detect gravitational waves are nowdays a concrete reality. The main purpose of this paper is to give a possible way of interpreting output data from such a system. Responses of the five…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Maria Alice Gasparini

We review sources of high-frequency gravitational waves, summarizing our current understanding of emission mechanisms, expected amplitudes and event rates. The most promising sources are gravitational collapse (formation of black holes or…

General Relativity and Quantum Cosmology · Physics 2017-08-23 Kostas D. Kokkotas , Nikolaos Stergioulas

Laser Interferometer Space Antenna (LISA) will observe gravitational waves from galactic binaries (GBs) of white dwarfs or neutron stars. Some of these objects are among the most magnetic astrophysical objects in the Universe. Magnetism, by…

Stochastic gravitational wave background produced by a stationary coalescing population of binary neutron stars in the Galaxy is calculated. This background is found to constitute a confusion limit within the LISA frequency band up to a…

Astrophysics · Physics 2009-11-06 V. B. Ignatiev , A. G. Kuranov , K. A. Postnov , M. E. Prokhorov

I review the expected Galactic sources of gravitational waves, concentrating on the low-frequency domain and summarise the current observational and theoretical knowledge we have. A model for the Galactic population of close binaries, which…

Astrophysics · Physics 2009-11-10 G. Nelemans
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