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The ESA/NASA joint LISA (laser interferometer space antenna) mission is designed to detect gravitational waves, which relies crucially on maintaining three-spacecraft constellation as close to an equilateral triangle with a designed…

广义相对论与量子宇宙学 · 物理学 2025-01-24 Yaguang Yang

This is a whitepaper submitted to the 2010 Astronomy Decadal Review process, addressing the potential tests of gravity theory that could be made by observations of gravitational waves in the milliHertz frequency band by the proposed…

广义相对论与量子宇宙学 · 物理学 2009-03-03 Bernard F. Schutz , Joan Centrella , Curt Cutler , Scott A. Hughes

The continuous improvement in localization errors (sky position and distance) in real time as LISA observes the gradual inspiral of a supermassive black hole (SMBH) binary can be of great help in identifying any prompt electromagnetic…

天体物理学 · 物理学 2008-11-26 Bence Kocsis , Zoltán Haiman , Kristen Menou , Zsolt Frei

Using the proposed space gravitational wave detector LISA, we will be able to measure the geometrical configurations of $\sim 10^4$ close white dwarf binaries in our Galaxy. The obtained data will be an entirely new resource to examine the…

高能天体物理现象 · 物理学 2024-10-31 Naoki Seto

Gravitational wave (GW) detection in space is aimed at low frequency band (100 nHz - 100 mHz) and middle frequency band (100 mHz - 10 Hz). The science goals are the detection of GWs from (i) Supermassive Black Holes; (ii) Extreme-Mass-Ratio…

天体物理仪器与方法 · 物理学 2016-12-06 Wei-Tou Ni

The LISA mission is a space interferometer aiming at the detection of gravitational waves in the [$10^{-4}$,$10^{-1}$] Hz frequency band. In order to reach the gravitational wave detection level, a Time Delay Interferometry (TDI) method…

广义相对论与量子宇宙学 · 物理学 2008-11-26 S. Pireaux

Gravitational wave (GW) astronomy opens a new venue to explore the universe. Future observatories such as LISA, the Laser Interferometer Space Antenna, are expected to observe previously undetectable fundamental physics effects in signals…

广义相对论与量子宇宙学 · 物理学 2026-05-21 Adrien Cogez , Silvia Gasparotto , Jann Zosso , Henri Inchauspé , Chantal Pitte , Lorena Magaña Zertuche , Antoine Petiteau , Marc Besancon

We discuss prospects for direct measurement of stochastic gravitational wave background around 0.1-1Hz with future space missions. It is assumed to use correlation analysis technique with the optimal TDI variables for two sets of LISA-type…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Naoki Seto

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…

广义相对论与量子宇宙学 · 物理学 2023-08-15 Lorenzo Speri , Andrea Antonelli , Laura Sberna , Stanislav Babak , Enrico Barausse , Jonathan R. Gair , Michael L. Katz

We assess the prospects for detecting gravitational wave echoes arising due to the quantum nature of black hole horizons with LISA. In a recent proposal, Bekenstein's black hole area quantization is connected to a discrete absorption…

Parity violation is a powerful observable to distinguish a cosmological background of Gravitational Waves (GWs) from an astrophysical one. Planar single GW interferometers, both on ground and in space, are unable to measure the net circular…

宇宙学与河外天体物理 · 物理学 2021-04-02 Giorgio Orlando , Mauro Pieroni , Angelo Ricciardone

We investigate the capabilities of space-based gravitational-wave detector networks, specifically Taiji and LISA, to measure the anisotropies in stochastic gravitational-wave background (SGWB), which are characterized by the angular power…

广义相对论与量子宇宙学 · 物理学 2024-10-30 Zhi-Chao Zhao , Sai Wang

The space-based gravitational-wave observatory LISA, a NASA-ESA mission to be launched after 2012, will achieve its optimal sensitivity using Time Delay Interferometry (TDI), a LISA-specific technique needed to cancel the otherwise…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Michele Vallisneri

The planned Laser Interferometer Space Antenna (LISA) will detect gravitational wave signals from a wide range of sources. However, disentangling individual signals from the source-dominated data stream is a challenging problem and the…

广义相对论与量子宇宙学 · 物理学 2016-11-15 Jonathan R Gair , Gareth Jones

An overview is presented of possible cosmologically distant sources of gravitational wave backgrounds, especially those which might produce detectable backgrounds in the LISA band between 0.1 and 100 mHz. Examples considered here include…

天体物理学 · 物理学 2009-10-30 Craig J. Hogan

Gravitational waves encode invaluable information about the nature of the relatively unexplored extreme gravity regime, where the gravitational interaction is strong, non-linear and highly dynamical. Recent gravitational wave observations…

广义相对论与量子宇宙学 · 物理学 2017-10-25 Katie Chamberlain , Nicolas Yunes

The role played by torsion in gravitation is critically reviewed. After a description of the problems and controversies involving the physics of torsion, a comprehensive presentation of the teleparallel equivalent of general relativity is…

广义相对论与量子宇宙学 · 物理学 2009-11-11 H. I. Arcos , J. G. Pereira

We investigate the cosmological perturbations around all three branches of spatially flat universe with different connections in symmetric teleparallel gravity. The model we consider can cover both the case of f(Q) model and that of the…

广义相对论与量子宇宙学 · 物理学 2023-12-06 Haomin Rao , Chunhui Liu , Chao-Qiang Geng

The direct detection of gravitational waves provides the opportunity to measure fundamental aspects of gravity which have never been directly probed before, including the polarization of gravitational waves. In the context of searches for…

广义相对论与量子宇宙学 · 物理学 2017-08-18 Maximiliano Isi , Matthew Pitkin , Alan J. Weinstein

Using a semi-parametric approach based on the fourth-order Edgeworth expansion for the unknown signal distribution, we derive an explicit expression for the likelihood detection statistic in the presence of non-normally distributed…

宇宙学与河外天体物理 · 物理学 2015-06-19 Lionel Martellini , Tania Regimbau