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Ultra-compact double white dwarfs (DWDs) represent key targets for multi-messenger astrophysics, as they may be observed both through gravitational waves and the electromagnetic (EM) spectrum. The future Laser Interferometer Space Antenna…

High Energy Astrophysical Phenomena · Physics 2025-09-23 Alice Perego , Astrid Lamberts , Mathias Schultheis , Nelson Christensen

Double white dwarfs (DWDs) will be the most numerous gravitational-wave (GW) sources for the Laser Interferometer Space Antenna (LISA). Most of the Galactic DWDs will be unresolved and will superpose to form a confusion noise foreground,…

A plethora of gravitational wave stochastic backgrounds populate the sensitivity window of the Laser Interferometer Space Antenna. We show that LISA can detect the anisotropy of the background corresponding to the multipole moments of order…

Astrophysics · Physics 2014-10-13 C. Ungarelli , A. Vecchio

Future gravitational wave detectors, such as the Laser Interferometer Space Antenna (\textit{LISA}), will be able to resolve a significant number of the ultra compact stellar-mass binaries in our own Galaxy and its neighborhood. These will…

Astrophysics of Galaxies · Physics 2022-12-21 Maria Georgousi , Nikolaos Karnesis , Valeriya Korol , Mauro Pieroni , Nikolaos Stergioulas

The Laser Interferometer Space Antenna (LISA) is expected to detect close white dwarf binaries (CWDBs) through their gravitational radiation. Around 3000 binaries will be spectrally resolved at frequencies > 3 mHz, and their positions on…

Astrophysics · Physics 2009-11-10 Asantha Cooray , Alison J. Farmer , Naoki Seto

Accreting binary white dwarf systems are among the sources expected to emanate gravitational waves that the Laser Interferometer Space Antenna (LISA) will detect. We investigate how accurately the binary parameters may be measured from LISA…

High Energy Astrophysical Phenomena · Physics 2024-07-04 Sophia Yi , Shu Yan Lau , Kent Yagi , Phil Arras

The millihertz gravitational-wave frequency band is expected to contain a rich symphony of signals with sources ranging from galactic white dwarf binaries to extreme mass ratio inspirals. Many of these gravitational-wave signals will not be…

Instrumentation and Methods for Astrophysics · Physics 2021-09-14 Sharan Banagiri , Alexander Criswell , Tommy Kuan , Vuk Mandic , Joseph D. Romano , Stephen R. Taylor

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

In globular clusters, dynamical interactions give rise to a population of eccentric double white dwarfs detectable by the Laser Interferometer Space Antenna (LISA) up to the Large Magellanic Cloud. In this Letter, we explore the…

Astrophysics · Physics 2008-12-18 B. Willems , A. Vecchio , V. Kalogera

In the context of the future Laser Interferometer Space Antenna (LISA) mission, galactic binary systems of white dwarfs and neutron stars will represent the dominant source of Gravitational Waves (GWs) within the…

General Relativity and Quantum Cosmology · Physics 2022-11-28 Adrien Bourgoin , Christophe Le Poncin-Lafitte , Stéphane Mathis , Marie-Christine Angonin

The upcoming LISA mission is the only experiment that will allow us to study the Milky Way's structure using gravitational wave signals from Galactic double white dwarfs (DWDs). The total number of expected detections exceeds $10^5$.…

Astrophysics of Galaxies · Physics 2018-10-10 Valeriya Korol , Elena Maria Rossi , Enrico Barausse

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

Space-based gravitational wave (GW) detectors, such as LISA, are expected to detect thousands of Galactic close white dwarf binaries emitting nearly monochromatic GWs. In this study, we demonstrate that LISA is reasonably likely to detect…

High Energy Astrophysical Phenomena · Physics 2025-08-13 Naoki Seto

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

A unique challenge for data analysis with the Laser Interferometer Space Antenna (LISA) is that the noise backgrounds from instrumental noise and astrophysical sources will change significantly over both the year and the entire mission.…

Instrumentation and Methods for Astrophysics · Physics 2022-11-30 Matthew C. Digman , Neil J. Cornish

The space based gravitational wave detector LISA is expected to observe a large population of Galactic white dwarf binaries whose collective signal is likely to dominate instrumental noise at observational frequencies in the range 10^{-4}…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Soumya D. Mohanty , Rajesh K. Nayak

White dwarfs comprise 95% of all stellar remnants, and are thus an excellent tracer of old stellar populations in the Milky Way. Current and planned telescopes are not able to directly probe the white dwarf population in its entirety due to…

Astrophysics of Galaxies · Physics 2020-09-14 Katelyn Breivik , Chiara M. F. Mingarelli , Shane L. Larson

The Laser Interferometer Space Antenna (LISA) will explore the source-rich milli-Hertz band of the gravitational wave spectrum. In contrast to ground based detectors, where typical signals are short-lived and discrete, LISA signals are…

General Relativity and Quantum Cosmology · Physics 2018-08-09 Travis Robson , Neil Cornish

The Laser Interferometer Space Antenna (LISA) mission, scheduled for launch in the early 2030s, is a gravitational wave observatory in space designed to detect sources emitting in the milli-Hertz band. In contrast to the present ground…

Instrumentation and Methods for Astrophysics · Physics 2021-08-25 Nikolaos Karnesis , Stanislav Babak , Mauro Pieroni , Neil Cornish , Tyson Littenberg

A large number of galactic binary systems emit gravitational waves (GW) continuously with frequencies below $\sim$10 mHz. The LISA mission could identify tens of thousands of binaries over years of observation and will be subject to the…

General Relativity and Quantum Cosmology · Physics 2023-05-26 Gang Wang , Zhen Yan , Bin Hu , Wei-Tou Ni