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Upcoming space-based gravitational-wave detectors will be sensitive to millions and resolve tens of thousands of stellar-mass binary systems at mHz frequencies. The vast majority of these will be double white dwarfs in our Galaxy. The…

High Energy Astrophysical Phenomena · Physics 2025-08-21 Riccardo Buscicchio , Antoine Klein , Valeriya Korol , Francesco Di Renzo , Christopher J. Moore , Davide Gerosa , Alessandro Carzaniga

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

We consider the general problem of estimating the inflight LISA noise power spectra and cross-spectra, which are needed for detecting and estimating the gravitational wave signals present in the LISA data. For the LISA baseline design and…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Julien Sylvestre , Massimo Tinto

We explore the prospects of detecting of Galactic double white dwarf (DWD) binaries with the space-based gravitational wave (GW) observatory TianQin. In this work, we analyze both a sample of currently known DWDs and a realistic synthetic…

High Energy Astrophysical Phenomena · Physics 2020-09-25 Shun-Jia Huang , Yi-Ming Hu , Valeriya Korol , Peng-Cheng Li , Zheng-Cheng Liang , Yang Lu , Hai-Tian Wang , Shenghua Yu , Jianwei Mei

We consider the formation of double white dwarfs (DWDs) through dynamical interactions in globular clusters. Such interactions can give rise to eccentric DWDs, in contrast to the exclusively circular population expected to form in the…

Astrophysics · Physics 2009-11-13 B. Willems , V. Kalogera , A. Vecchio , N. Ivanova , F. A. Rasio , J. M. Fregeau , K. Belczynski

Double white dwarf (DWD) binaries are important for studies of common-envelope (CE) evolution, Type Ia supernova progenitors and Galactic sources of low-frequency gravitational waves (GWs). PTF J0533+0209 is a DWD system with a short…

Solar and Stellar Astrophysics · Physics 2021-11-29 Hai-Liang Chen , Thomas M. Tauris , Xuefei Chen , Zhanwen Han

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…

High Energy Astrophysical Phenomena · Physics 2024-10-31 Naoki Seto

Observations of binaries containing pairs of neutron stars using the upcoming space-based gravitational wave observatory, LISA, have the potential to improve our understanding of neutron star physics and binary evolution. In this work we…

High Energy Astrophysical Phenomena · Physics 2023-03-08 Anatole Storck , Ross Church

We present a Bayesian parameter-estimation pipeline to measure the properties of inspiralling stellar-mass black hole binaries with LISA. Our strategy (i) is based on the coherent analysis of the three noise-orthogonal LISA data streams,…

High Energy Astrophysical Phenomena · Physics 2021-11-23 Riccardo Buscicchio , Antoine Klein , Elinore Roebber , Christopher J. Moore , Davide Gerosa , Eliot Finch , Alberto Vecchio

Galactic compact binaries with orbital periods shorter than a few hours emit detectable gravitational waves at low frequencies. Their gravitational wave signals can be detected with the future Laser Interferometer Space Antenna (LISA).…

Binary interaction can cause stellar envelopes to be stripped, which significantly reduces the radius of the star. The orbit of a binary composed of a stripped star and a compact object can therefore be so tight that the gravitational…

Solar and Stellar Astrophysics · Physics 2020-12-02 Y. Götberg , V. Korol , A. Lamberts , T. Kupfer , K. Breivik , B. Ludwig , M. R. Drout

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…

Instrumentation and Methods for Astrophysics · Physics 2022-10-12 Stefan H. Strub , Luigi Ferraioli , Cedric Schmelzbach , Simon C. Stähler , Domenico Giardini

Unlike gravitational waves from merging black holes and neutron stars that chirp significantly over the observational period of ground-based detectors, gravitational waves from binary white dwarfs are almost monochromatic. This makes it…

High Energy Astrophysical Phenomena · Physics 2021-01-06 Anna Wolz , Kent Yagi , Nick Anderson , Andrew J. Taylor

From prolonged X-ray and optical data of the ultra-compact binary HM Cancri, two groups recently measured the second derivative of its orbital frequency. The space gravitational wave (GW) detector LISA will detect $\sim10^4$ Galactic…

General Relativity and Quantum Cosmology · Physics 2023-08-09 Naoki Seto

The Laser Interferometer Space Antenna (LISA) will enable Galactic gravitational wave (GW) astronomy by individually resolving $ > 10^4$ signals from double white dwarf (DWD) binaries throughout the Milky Way. In this work we assess for the…

Astrophysics of Galaxies · Physics 2025-10-03 Maite J. C. Wilhelm , Valeriya Korol , Elena M. Rossi , Elena D'Onghia

The space-based gravitational wave (GW) detector LISA is expected to observe signals from a large population of compact object binaries, comprised predominantly of white dwarfs, in the Milky Way. Resolving individual sources from this…

General Relativity and Quantum Cosmology · Physics 2021-07-14 Xue-Hao Zhang , Soumya D. Mohanty , Xiao-Bo Zou , Yu-Xiao Liu

The Gravitation Wave (GW) signals from a large number of double white dwarfs (DWDs) in the Galaxy are expected to be detected by space GW detectors, e.g., the Laser Interferometer Space Antenna (LISA), Taiji, and Tianqin in the millihertz…

Astrophysics of Galaxies · Physics 2024-11-15 Siqi Zhang , Furen Deng , Youjun Lu , Shenghua Yu

The properties of the population of merging binary black holes encode some of the uncertain physics of the evolution of massive stars in binaries. The binary black hole merger rate and chirp mass distribution are being measured by…

Gravitational-wave observations of double compact object (DCO) mergers are providing new insights into the physics of massive stars and the evolution of binary systems. Making the most of expected near-future observations for understanding…

The space-based gravitational wave (GW) detector, \emph{evolved Laser Interferometer Space Antenna} (eLISA) is expected to observe millions of compact Galactic binaries that populate our Milky Way. GW measurements obtained from the eLISA…

Solar and Stellar Astrophysics · Physics 2015-06-22 Sweta Shah , Gijs Nelemans
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