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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

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

Milky Way dwarf satellites are unique objects that encode the early structure formation and therefore represent a window into the high redshift Universe. So far, their study was conducted using electromagnetic waves only. The future Laser…

Astrophysics of Galaxies · Physics 2020-09-11 V. Korol , S. Toonen , A. Klein , V. Belokurov , F. Vincenzo , R. Buscicchio , D. Gerosa , C. J. Moore , E. Roebber , E. M. Rossi , A. Vecchio

White dwarf stars are a well-established tool for studying Galactic stellar populations. Two white dwarfs in a tight binary system offer us an additional messenger - gravitational waves - for exploring the Milky Way and its immediate…

Astrophysics of Galaxies · Physics 2021-02-05 Valeriya Korol , Vasily Belokurov , Christopher J. Moore , Silvia Toonen

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

Short-period (P<1 hour) white dwarf binaries will be the most numerous sources for the space-based gravitational wave detector LISA. Based on thousands of resolved systems, we will be able to constrain binary evolution and provide a new map…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Astrid Lamberts , Sarah Blunt , Tyson Littenberg , Shea Garrison-Kimmel , Thomas Kupfer , Robyn Sanderson

Galactic double white dwarf (DWD) binaries are among the guaranteed sources for the Laser Interferometer Space Antenna (LISA), an upcoming space-based gravitational wave (GW) detector. Most DWDs in the LISA band are far from merging and…

General Relativity and Quantum Cosmology · Physics 2026-01-26 Reza Ebadi , Vladimir Strokov , Erwin H. Tanin , Emanuele Berti , Ronald L. Walsworth

One of the primary sources of gravitational waves (GWs) anticipated to be detected by the Laser Interferometer Space Antenna (LISA) are Galactic double white dwarf binaries (DWDs). However, most of these binaries will be unresolved, and…

Astrophysics of Galaxies · Physics 2025-06-02 Federico Pozzoli , Riccardo Buscicchio , Antoine Klein , Valeriya Korol , Alberto Sesana , Francesco Haardt

Using observational data on the kinematical properties and density distributions of the subsystems of the Milky Way galaxy, we construct a set of multi-component equilibrium models of its disk. The dynamics of the disk is studied…

Astrophysics of Galaxies · Physics 2019-12-17 V. I. Korchagin , S. S. Khrapov , A. V. Khoperskov

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

Within its observational band the Laser Interferometer Space Antenna, LISA, will simultaneously observe orbital modulated waveforms from Galactic white dwarf binaries, a binary black hole produced gravitational-wave background, and…

General Relativity and Quantum Cosmology · Physics 2021-10-08 Guillaume Boileau , Astrid Lamberts , Nelson Christensen , Neil J. Cornish , Renate Meyer

Identifying the structure of our Galaxy has always been fraught with difficulties, and while modern surveys continue to make progress building a map of the Milky Way, there is still much to understand. The arm and bar features are important…

Astrophysics of Galaxies · Physics 2020-01-08 Alex R. Pettitt , Sarah E. Ragan , Martin C. Smith

The Galaxy is suspected to contain hundreds of millions of binary white dwarf systems, a large fraction of which will have sufficiently small orbital period to emit gravitational radiation in band for space-based gravitational wave…

General Relativity and Quantum Cosmology · Physics 2013-05-29 Tyson B. Littenberg

Like the majority of spiral galaxies, the Milky Way contains a central non-axisymmetric bar component. Our position in the Galactic plane renders it rather hard to see, but also allows us to make measurements of the bar that are completely…

Astrophysics · Physics 2008-11-26 M. R. Merrifield

Observational data indicate that the Milky Way is a barred spiral galaxy. Computation facilities and availability of data from Galactic surveys stimulate the appearance of models of the Galactic structure. More efforts to build dynamical…

Astrophysics of Galaxies · Physics 2018-07-18 Tatiana A. Michtchenko , Jacques R. D. Lépine , Douglas A. Barros , Ronaldo S. S. Vieira

We use low-amplitude, long period variable (LA-LPV) candidates in \textit{Gaia} DR3 to trace the kinematics and dynamics of the Milky Way bar. LA-LPVs, like other LPVs, are intrinsically bright and follow a tight period-luminosity relation,…

Astrophysics of Galaxies · Physics 2024-12-20 Hanyuan Zhang , Vasily Belokurov , N. Wyn Evans , Sarah G. Kane , Jason L. Sanders

In this paper we introduce a new method for analysing Milky Way phase-space which allows us to reveal the imprint left by the Milky Way bar and spiral arms on the stars with full phase-space data in Gaia Data Release 2. The unprecedented…

Astrophysics of Galaxies · Physics 2020-02-05 S. Khoperskov , O. Gerhard , P. Di Matteo , M. Haywood , D. Katz , S. Khrapov , A. Khoperskov , M. Arnaboldi

The population of Milky Way satellite galaxies is of great interest for cosmology, fundamental physics, and astrophysics. They represent the faint end of the galaxy luminosity function, are the most dark-matter dominated objects in the…

In its observation band, the Laser Interferometer Space Antenna (LISA) will simultaneously observe stochastic gravitational-wave background (SGWB) signals of different origins; orbitally modulated waveforms from galactic white dwarf…

General Relativity and Quantum Cosmology · Physics 2021-05-18 Guillaume Boileau , Astrid Lamberts , Nelson Christensen , Neil J. Cornish , Renate Meyer

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
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