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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…

Galactic ultra compact binaries are expected to be the dominant source of gravitational waves in the milli-Hertz frequency band. Of the tens of millions of galactic binaries with periods shorter than an hour, it is estimated that a few tens…

广义相对论与量子宇宙学 · 物理学 2020-07-01 Tyson Littenberg , Neil Cornish , Kristen Lackeos , Travis Robson

We anticipate that the data acquired by the Laser Interferometer Space Antenna (LISA) will be dominated by the gravitational wave signals from several astrophysical populations. The analysis of these data is a new challenge and is the main…

广义相对论与量子宇宙学 · 物理学 2025-04-16 Senwen Deng , Stanislav Babak , Maude Le Jeune , Sylvain Marsat , Éric Plagnol , Andrea Sartirana

LISA is the upcoming space-based Gravitational Wave telescope. LISA Pathfinder, to be launched in the coming years, will prove and verify the detection principle of the fundamental Doppler link of LISA on a flight hardware identical in…

数据分析、统计与概率 · 物理学 2015-03-25 G. Congedo , L. Ferraioli , M. Hueller , F. De Marchi , S. Vitale , M. Armano , M. Hewitson , M. Nofrarias

Future detectors such as LISA promise signal-to-noise ratios potentially in the thousands and data containing simultaneous signals. Accurate numerical relativity waveforms will be essential to maximize the science return. A question of…

广义相对论与量子宇宙学 · 物理学 2021-12-10 Deborah Ferguson , Karan Jani , Pablo Laguna , Deirdre Shoemaker

The joint ESA/NASA LISA mission consists in three spacecraft on heliocentric orbits, flying in a triangular formation of 5 Mkm each side, linked by infrared optical beams. The aim of the mission is to detect gravitational waves in a low…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Bertrand Chauvineau , Sophie Pireaux , Tania Regimbau , Jean-Yves Vinet

Understanding and dealing with inference biases in gravitational-wave (GW) parameter estimation when a plethora of signals are present in the data is one of the key challenges for the analysis of data from future GW detectors. Working…

广义相对论与量子宇宙学 · 物理学 2021-08-25 Andrea Antonelli , Ollie Burke , Jonathan R. Gair

The orbital motion of the Laser Interferometer Space Antenna (LISA) introduces modulations into the observed gravitational wave signal. These modulations can be used to determine the location and orientation of a gravitational wave source.…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Neil J. Cornish , Louis J. Rubbo

The Laser Interferometer Space Antenna (LISA) mission is being developed by ESA with NASA participation. As it has recently passed the Mission Adoption milestone, models of the instruments and noise performance are becoming more detailed,…

Interspacecraft ranging is crucial for the suppression of laser frequency noise via time-delay interferometry (TDI). So far, the effects of on-board delays and ambiguities on the LISA ranging observables were neglected in LISA modelling and…

Gravitational waves have been shown to provide new constraints on gravitational theories beyond general relativity (GR), especially in the strong field regime. Gravitational wave signals from galactic double white dwarfs, expected to be…

广义相对论与量子宇宙学 · 物理学 2024-09-27 Shu Yan Lau , Kent Yagi , Phil Arras

LISA is an array of three spacecraft flying in an approximately equilateral triangle configuration, which will be used as a low-frequency detector of gravitational waves. Recently a technique has been proposed for suppressing the phase…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Massimo Tinto , Malik Rakhmanov

Gravitational waves (GWs) from tens of millions of compact binaries in our Milky Way enter the milli-Hertz band of space-based detection. The majority of them cannot be resolved individually, resulting in a foreground confusion noise for…

天体物理仪器与方法 · 物理学 2023-03-14 Chang Liu , Wen-Hong Ruan , Zong-Kuan Guo

The space-based Laser Interferometer Space Antenna (LISA) will be able to observe the gravitational-wave signals from systems comprised of a massive black hole and a stellar-mass compact object. These systems are known as extreme-mass-ratio…

The analysis method currently proposed to search for isotropic stochastic radiation of primordial or astrophysical origin with the Laser Interferometer Space Antenna (LISA) relies on the combined use of two LISA channels, one of which is…

广义相对论与量子宇宙学 · 物理学 2008-11-26 E. L. Robinson , J. D. Romano , A. Vecchio

The Laser Interferometric Space Antenna (LISA) will observe supermassive black hole binary mergers with amplitude signal-to-noise ratio of several thousands. We investigate the extent to which such observations afford high-precision tests…

广义相对论与量子宇宙学 · 物理学 2010-11-05 K. G. Arun , B. R. Iyer , M. S. S. Qusailah , B. S. Sathyaprakash

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

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…

高能天体物理现象 · 物理学 2018-12-31 Koutarou Kyutoku , Yuki Nishino , Naoki Seto

The Laser Interferometer Space Antenna (LISA) is a gravitational wave detector in space. It relies on a post-processing technique named time-delay interferometry (TDI) to suppress the overwhelming laser frequency noise by several orders of…

Extracting gravitational wave (GW) signals from individual Galactic binaries (GBs) against their self-generated confusion noise is a key data analysis challenge for space-borne detectors operating in the $\approx 0.1$ mHz to $\approx 10$…

广义相对论与量子宇宙学 · 物理学 2022-11-30 Xue-Hao Zhang , Shao-Dong Zhao , Soumya D. Mohanty , Yu-Xiao Liu