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Related papers: Pointing LISA-like gravitational wave detectors

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We report the results of a theoretical and experimental study of a spherical gravitational wave antenna. We show that it is possible to understand the data from a spherical antenna with 6 radial resonant transducers attached to the surface…

General Relativity and Quantum Cosmology · Physics 2009-12-30 Stephen M. Merkowitz , Warren W. Johnson

The gravitational wave sky is expected to have isolated bright sources superimposed on a diffuse gravitational wave background. The background radiation has two components: a confusion limited background from unresolved astrophysical…

Astrophysics · Physics 2014-10-13 Neil J. Cornish

The Galaxy is suspected to contain hundreds of millions of binary white dwarf systems, a large fraction of which will have sufficiently small orbital period to emit gravitational radiation in band for space-based gravitational wave…

General Relativity and Quantum Cosmology · Physics 2013-05-29 Tyson B. Littenberg

Gravitational-wave observations of extreme mass ratio inspirals (EMRIs) offer the opportunity to probe the environments of active galactic nuclei (AGN) through the torques that accretion disks induce on the binary. Within a Bayesian…

General Relativity and Quantum Cosmology · Physics 2023-08-15 Lorenzo Speri , Andrea Antonelli , Laura Sberna , Stanislav Babak , Enrico Barausse , Jonathan R. Gair , Michael L. Katz

In its observation band, the Laser Interferometer Space Antenna (LISA) will simultaneously observe stochastic gravitational-wave background (SGWB) signals of different origins; orbitally modulated waveforms from galactic white dwarf…

General Relativity and Quantum Cosmology · Physics 2021-05-18 Guillaume Boileau , Astrid Lamberts , Nelson Christensen , Neil J. Cornish , Renate Meyer

Results are presented from high-precision computations of the orbital evolution and emitted gravitational waves for a stellar-mass object spiraling into a massive black hole in a slowly shrinking, circular, equatorial orbit. The focus of…

General Relativity and Quantum Cosmology · Physics 2014-11-17 Lee Samuel Finn , Kip S. Thorne

Gravitational wave memory is theorized to arise from the integrated history of gravitational wave emission, and manifests as a spacetime deformation in the wake of a propagating gravitational wave. We explore the detectability of the memory…

High Energy Astrophysical Phenomena · Physics 2019-07-01 Kristina Islo , Joseph Simon , Sarah Burke-Spolaor , Xavier Siemens

We present the steps to forecast the sensitivity of the Laser Interferometer Space Antenna (LISA) to both a stochastic gravitational wave background and deterministic wave sources. We show how to use these expressions to estimate the…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-09 Tristan L. Smith , Robert Caldwell

The future space-borne Laser Interferometer Space Antenna (LISA) is expected to detect gravitational waves (GW) from Extreme Mass Ratio Inspiral (EMRI) binaries which may live in nontrivial environments such as accretion disks. In this…

General Relativity and Quantum Cosmology · Physics 2024-06-25 Marco Immanuel B. Rivera , Reinabelle C. Reyes

Typical applications of gravitational lensing use the properties of electromagnetic or gravitational waves to infer the geometry through which those waves propagate. Nevertheless, the optical fields themselves - as opposed to their…

General Relativity and Quantum Cosmology · Physics 2019-12-10 Abraham I. Harte

We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multi-detector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are…

General Relativity and Quantum Cosmology · Physics 2008-11-26 The LIGO Scientific Collaboration , B. Abbott , M. Kramer , A. G. Lyne

In the last two decades, thousands of extrasolar planets were discovered based on different observational techniques, and their number must increase substantially in virtue of the ongoing and near-future approved missions and facilities. It…

Earth and Planetary Astrophysics · Physics 2018-08-01 J. V. Cunha , F. E. Silva , J. A. S. Lima

We describe the design of a gravitational wave timing array, a novel scheme that can be used to search for low-frequency gravitational waves by monitoring continuous gravitational waves at higher frequencies. We show that observations of…

General Relativity and Quantum Cosmology · Physics 2022-07-25 María José Bustamante-Rosell , Joel Meyers , Noah Pearson , Cynthia Trendafilova , Aaron Zimmerman

Galactic double white dwarf (DWD) binaries are among the guaranteed sources for the Laser Interferometer Space Antenna (LISA), an upcoming space-based gravitational wave (GW) detector. Most DWDs in the LISA band are far from merging and…

General Relativity and Quantum Cosmology · Physics 2026-01-26 Reza Ebadi , Vladimir Strokov , Erwin H. Tanin , Emanuele Berti , Ronald L. Walsworth

Rapidly rotating white dwarfs in cataclysmic variable systems may be emitting gravitational radiation due to the recently discovered relativistic r-mode instability. Assuming that the four most rapidly rotating known systems are limited in…

General Relativity and Quantum Cosmology · Physics 2009-09-25 William A. Hiscock

Parity violating interactions in the early Universe can source a stochastic gravitational wave background (SGWB) with a net circular polarization. In this paper, we study possible ways to search for circular polarization of the SGWB with…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-20 Valerie Domcke , Juan Garcia-Bellido , Marco Peloso , Mauro Pieroni , Angelo Ricciardone , Lorenzo Sorbo , Gianmassimo Tasinato

The propagation speed of gravitational waves, $c_T$, has been tightly constrained by the binary neutron star merger GW170817 and its electromagnetic counterpart, under the assumption of a frequency-independent $c_T$. Drawing upon arguments…

We investigate the ability of the Laser Interferometer Space Antenna (LISA) to detect a stochastic gravitational-wave background (GWB) produced by cosmic strings, and to subsequently estimate the string tension $G\mu$ in the presence of…

General Relativity and Quantum Cosmology · Physics 2022-01-12 Guillaume Boileau , Alexander C. Jenkins , Mairi Sakellariadou , Renate Meyer , Nelson Christensen

We discuss a multimessenger strategy to detect radio pulses from Galactic binary neutron stars in a very tight orbit with the period shorter than 10 min. On one hand, all-sky surveys by radio instruments are inefficient for detecting faint…

High Energy Astrophysical Phenomena · Physics 2018-12-31 Koutarou Kyutoku , Yuki Nishino , Naoki Seto
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