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Related papers: A Simulation of the LISA Data Stream from Galactic…

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In multi-component dark matter models, a fraction $f_\text{pbh}$ of the dark matter could be in the form of primordial black holes (PBHs) with (sub)solar masses. Some would have formed binaries that presently trace the Milky Way halo of…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-06 Frans van Die , Ivan Rapoport , Yonadav Barry Ginat , Vincent Desjacques

The planned space-based gravitational wave detector, LISA, will provide a fundamentally new means of studying the orbital alignment of close white dwarf binaries. However, due to the inherent symmetry of their gravitational wave signals, a…

General Relativity and Quantum Cosmology · Physics 2025-08-13 Naoki Seto

Short-period Galactic white dwarf binaries detectable by LISA are the only guaranteed persistent sources for multi-messenger gravitational-wave astronomy. Large-scale surveys in the 2020s present an opportunity to conduct preparatory…

Astrophysics of Galaxies · Physics 2023-08-16 Matthew C. Digman , Chris M. Hirata

Wide, highly eccentric ($e>0.9$) compact binaries can naturally arise as progenitors of gravitational wave (GW) mergers. These systems are expected to have a significant population in the mHz band (e.g., $\sim 3-45$ detectable stellar-mass…

High Energy Astrophysical Phenomena · Physics 2026-05-28 Zeyuan Xuan , Smadar Naoz , Alvin K. Y. Li , Bence Kocsis , Erik Petigura , Alan M. Knee , Jess McIver , Kyle Kremer , Will M. Farr

We analyse the energy spectral density properties of Gravitational waves from Galactic binary populations in the~\text{mHz} band targeted by the Laser Interferometer Space Antenna mission. Our analysis is based on combining BPASS with a…

Astrophysics of Galaxies · Physics 2025-10-15 Petra Tang , Renate Meyer , Jan Eldridge

Some electromagnetically observed ultra-compact binaries will be strong gravitational wave sources for space-based detectors like the Laser Interferometer Space Antenna (LISA). These sources have historically been referred to as…

High Energy Astrophysical Phenomena · Physics 2024-04-05 Tyson B. Littenberg , Ananthu K. Lali

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

The binary confusion noise spectrum at LISA band depends strongly on observational period and abundance of Galactic close white dwarf binaries (CWDBs). We have investigated how the number of the resolved Galactic CWDBs varies with operation…

Astrophysics · Physics 2009-11-07 Naoki Seto

The formation and evolution of binary stars is a critical component of several fields in astronomy. The most numerous sources for gravitational wave observatories are inspiraling and/or merging compact binaries, while binary stars are…

Gravitational wave detectors in space, particularly the LISA project, can study a rich variety of astronomical systems whose gravitational radiation is not detectable from the ground, because it is emitted in the low-frequency gravitational…

General Relativity and Quantum Cosmology · Physics 2007-05-23 B. F. Schutz

Neutron star-white dwarf (NS+WD) binaries offer a unique opportunity for studying NS-specific phenomena with gravitational waves. In this paper, we employ the binary population synthesis technique to study the Galactic population of NS+WDs…

High Energy Astrophysical Phenomena · Physics 2024-04-10 Valeriya Korol , Andrei P. Igoshev , Silvia Toonen , Nikolaos Karnesis , Christopher J. Moore , Eliot Finch , Antoine Klein

We discuss the stochastic background of gravitational waves from ultra compact neutron star-white dwarf (NS-WD) binaries at cosmological distances. Under the assumption that accreting neutron stars and donor white dwarf stars form most of…

Astrophysics · Physics 2009-11-10 Asantha Cooray

Galactic binaries with orbital periods less than $\approx$1 hr are strong gravitational wave sources in the mHz regime, ideal for the Laser Interferometer Space Antenna (LISA). In fact, theory predicts that \emph{LISA} will resolve tens of…

Solar and Stellar Astrophysics · Physics 2019-04-04 Thomas Kupfer , Mukremin Kilic , Tom Maccarone , Eric Burns , Chris L. Fryer , Colleen A. Wilson-Hodge

Detecting a stochastic gravitational wave background requires that we first understand and model any astrophysical foregrounds. In the millihertz frequency band, the predominate foreground signal will be from unresolved white dwarf binaries…

General Relativity and Quantum Cosmology · Physics 2014-01-23 Matthew R. Adams , Neil J. Cornish

LISA will detect $\sim \! 10^4$ Galactic binaries, the majority being double white dwarfs. However, approximately $\sim \! 1 \textrm{--} 5 \%$ of these systems will contain neutron stars which, if they can be correctly identified, will…

High Energy Astrophysical Phenomena · Physics 2024-06-11 Christopher J. Moore , Eliot Finch , Antoine Klein , Valeriya Korol , Nhat Pham , Daniel Robins

Current gravitational wave detectors are sensitive to coalescing black holes and neutron stars. However, double white dwarfs (DWDs) have long been recognized as promising sources of gravitational waves, and upcoming detectors like LISA will…

Resolving individual gravitational waves from tens of millions of double white dwarf (DWD) binaries in the Milky Way is a challenge for future space-based gravitational wave detection programs. By using previous data to define the priors…

High Energy Astrophysical Phenomena · Physics 2023-09-13 Pin Gao , Xi-Long Fan , Zhou-Jian Cao , Xue-Hao Zhang

First order phase transitions in the early universe could produce a gravitational-wave background that might be detectable by the Laser Interferometer Space Antenna (LISA). Such an observation would provide evidence for physics beyond the…

General Relativity and Quantum Cosmology · Physics 2023-03-01 Guillaume Boileau , Nelson Christensen , Chloe Gowling , Mark Hindmarsh , Renate Meyer

Galactic binaries with orbital periods less than 1 hour are strong gravitational wave sources in the mHz regime, ideal for the Laser Interferometer Space Antenna (LISA). At least several hundred, maybe up to a thousand of those binaries are…

Instrumentation and Methods for Astrophysics · Physics 2023-06-28 Thomas Kupfer , Camilla Danielski , Poshak Gandhi , Thomas J. Maccarone , Gijs Nelemans , Valeriya Korol , Liliana Rivera Sandoval

The upcoming LISA mission offers the unique opportunity to study the Milky Way through gravitational wave radiation from Galactic binaries. Among the variety of Galactic gravitational wave sources, LISA is expected to individually resolve…

Astrophysics of Galaxies · Physics 2019-02-26 Valeriya Korol , Elena M. Rossi , Enrico Barausse
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