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The upcoming Laser Interferometer Space Antenna (LISA) will detect a large gravitational-wave foreground of Galactic white dwarf binaries. These sources are exceptional for their probable detection at electromagnetic wavelengths, some long…

This document briefly describes the noise models and shapes used for the synthesis of the Drag-Free and Attitude Control System in the LISA space mission. LISA (Laser Interferometer Space Antenna) is one of the next large-class missions…

天体物理仪器与方法 · 物理学 2024-05-07 Michele Pagone , Carlo Novara

Extreme mass ratio inspirals (EMRIs) are compact binary systems characterized by a mass-ratio $q=m/M$ in the range $~10^{-9}-10^{-4}$ and represent primary gravitational wave (GW) sources for the forthcoming Laser Interferometer Space…

The next decade is expected to see the launch of one or more space based gravitational wave detectors: the European lead Laser Interferometer Space Antenna (LISA); and one or more Chinese mission concepts, Taiji and TianQin. One of the…

广义相对论与量子宇宙学 · 物理学 2022-02-16 Neil J. Cornish

Gravitational waves (GWs) accompanied by electromagnetic (EM) counterparts provide a novel methodology to measure the Hubble constant ($H_0$), known as bright sirens. However, the rarity of such multi-messenger events limits the precision…

高能天体物理现象 · 物理学 2026-01-22 Yejing Zhan , Di Wang , Shuang-Xi Yi , Fa-Yin Wang

We study the evolution of eccentric, equatorial extreme-mass-ratio inspirals (EMRIs) immersed in the accretion disks of active galactic nuclei. We find that single gravitational-wave observations from these systems could provide…

广义相对论与量子宇宙学 · 物理学 2025-01-30 Francisco Duque , Shubham Kejriwal , Laura Sberna , Lorenzo Speri , Jonathan Gair

We review the expected science performance of the New Gravitational-Wave Observatory (NGO, a.k.a. eLISA), a mission under study by the European Space Agency for launch in the early 2020s. eLISA will survey the low-frequency…

Peters' formula is an analytical estimate of the time-scale of gravitational wave (GW)-induced coalescence of binary systems. It is used in countless applications, where the convenience of a simple formula outweighs the need for precision.…

The Einstein Telescope (ET) is a proposed third generation ground-based interferometer, for which the target is a sensitivity that is a factor of ten better than Advanced LIGO and a frequency range that extends down to about 1Hz. ET will…

广义相对论与量子宇宙学 · 物理学 2011-02-18 E. A. Huerta , Jonathan R. Gair

Context. Galactic binaries account for the loudest combined continuous gravitational wave signal in the Laser Interferometer Space Antenna (LISA) band, which spans a frequency range of 0.1 mHz to 1 Hz. Aims. A superposition of low frequency…

广义相对论与量子宇宙学 · 物理学 2023-10-18 Kristen Lackeos , Tyson B. Littenberg , Neil J. Cornish , James I. Thorpe

We report the LWFA driven X-ray sources development at ELI beamlines. ELI Gammatron beamline provides X-ray pulses of energies from 1-100 keV in betatron scheme, and up to a MeV in Compton scheme. A state-of-the-art Ti:Sa diode-pumped HAPLS…

等离子体物理 · 物理学 2022-02-11 U. Chaulagain , M. Lamač , M. Raclavský , S. Karatodorov , J. Nejdl , S. V. Bulanov

Extreme mass-ratio inspirals (EMRIs), comprising a stellar-mass compact object (CO) orbiting a supermassive black hole (BH), are key targets for future space-based gravitational-wave (GW) observatories. Incorporating the spin of the…

高能天体物理现象 · 物理学 2026-03-26 Qiuxin Cui , Wen-Biao Han

Extreme-mass-ratio-inspiral (EMRI) is one of the most important sources for the future space-borne gravitational wave detectors. In such kind of systems, the compact objects usually orbit around the central supermassive black holes with…

广义相对论与量子宇宙学 · 物理学 2021-08-11 Chen Zhang , Wen-Biao Han , Shu-Cheng Yang

The Laser Interferometer Space Antenna (LISA), which is currently under construction, is designed to measure gravitational wave signals in the milli-Hertz frequency band. It is expected that tens of millions of Galactic binaries will be the…

天体物理仪器与方法 · 物理学 2022-10-12 Stefan H. Strub , Luigi Ferraioli , Cedric Schmelzbach , Simon C. Stähler , Domenico Giardini

Accurate modeling of gravitational-wave signals is essential for reliable inference of compact-binary source parameters, particularly for future space-based detectors operating in the milli- and deci-Hertz bands. In this work, we…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Jin-Zhao Yang , Jia-Hao Zhong , Tao Yang

Extreme-mass-ratio inspirals (EMRIs) could be detected by space-borne gravitational-wave (GW) detectors, such as the Laser Interferometer Space Antenna (LISA), TianQin and Taiji. Localizing EMRIs by GW detectors can help us select candidate…

宇宙学与河外天体物理 · 物理学 2024-07-29 Liang-Gui Zhu , Hui-Min Fan , Xian Chen , Yi-Ming Hu , Jian-dong Zhang

Mini-Extreme-Mass-Ratio Inspirals (mini-EMRIs), comprising a sub-solar exotic compact object (such as a primordial black hole or boson star) orbiting a much heavier stellar-origin or exotic compact object, represent key targets for…

广义相对论与量子宇宙学 · 物理学 2025-12-29 Zi-Xuan Wang , Xing-Yu Chen , Ju Chen , Gong Cheng , Huai-Ke Guo , Andrew L. Miller

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 investigate the capability of various configurations of the space interferometer eLISA to probe the late-time background expansion of the universe using gravitational wave standard sirens. We simulate catalogues of standard sirens…

宇宙学与河外天体物理 · 物理学 2017-03-09 Nicola Tamanini , Chiara Caprini , Enrico Barausse , Alberto Sesana , Antoine Klein , Antoine Petiteau

We compute adiabatic waveforms for extreme mass-ratio inspirals (EMRIs) by "stitching" together a long inspiral waveform from a sequence of waveform snapshots, each of which corresponds to a particular geodesic orbit. We show that the…

广义相对论与量子宇宙学 · 物理学 2024-04-01 Scott A. Hughes , Niels Warburton , Gaurav Khanna , Alvin J. K. Chua , Michael L. Katz