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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…

星系天体物理 · 物理学 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

Following the selection of The Gravitational Universe by ESA, and the successful flight of LISA Pathfinder, the LISA Consortium now proposes a 4 year mission in response to ESA's call for missions for L3. The observatory will be based on…

The distance to the Large Magellanic Cloud (LMC) can be directly determined by measuring three of its properties, its radial-velocity field, its mean proper motion, and the position angle \phi_ph of its photometric line of nodes.…

天体物理学 · 物理学 2009-10-31 Andrew Gould

Laser Interferometer Space Antenna (LISA) will observe gravitational waves from galactic binaries (GBs) of white dwarfs or neutron stars. Some of these objects are among the most magnetic astrophysical objects in the Universe. Magnetism, by…

The observation of massive black hole binary systems is one of the main science objectives of the Laser Interferometer Space Antenna (LISA). The instrument's design requirements have recently been revised: they set a requirement at…

广义相对论与量子宇宙学 · 物理学 2023-07-05 Geraint Pratten , Antoine Klein , Christopher J. Moore , Hannah Middleton , Nathan Steinle , Patricia Schmidt , Alberto Vecchio

As a result of a careful selection of eclipsing binaries in the Large Magellanic Cloud using the OGLE-II photometric database, we present a list of 98 systems that are suitable targets for spectroscopic observations that would lead to the…

天体物理学 · 物理学 2009-11-10 G. Michalska , A. Pigulski

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…

高能天体物理现象 · 物理学 2025-09-23 Alice Perego , Astrid Lamberts , Mathias Schultheis , Nelson Christensen

We report the discovery of the brightest detached binary white dwarfs with periods less than an hour, which provide two new gravitational wave verification binaries for the Laser Interferometer Space Antenna (LISA). The first one, SMSS…

太阳与恒星天体物理 · 物理学 2021-09-08 Mukremin Kilic , Warren R. Brown , A. Bedard , Alekzander Kosakowski

The distance to LMC and SMC is a subject of controversy, with the difference between the extreme values in distance moduli exceeding 0.5 mag. While currently the best calibrated method is based on red clump giants, and the near future…

天体物理学 · 物理学 2007-05-23 Bohdan Paczynski

The Laser Interferometer Space Antenna (LISA) is expected to detect a wide variety of gravitational wave sources in the mHz band. Some of these signals will elude individual detection, instead contributing as confusion noise to one of…

天体物理仪器与方法 · 物理学 2024-06-06 Steven Rieck , Alexander W. Criswell , Valeriya Korol , Michael A. Keim , Malachy Bloom , Vuk Mandic

LISA (Laser Interferometer Space Antenna) is a proposed space mission, which will use coherent laser beams exchanged between three remote spacecraft to detect and study low-frequency cosmic gravitational radiation. In the low-part of its…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Jeffrey A. Edlund , Massimo Tinto , Andrzej Krolak , Gijs Nelemans

This paper presents the first distance measurement to the massive, semi-detached, eclipsing binary LMC-SC1-105, located in the LH 81 association of the Large Magellanic Cloud (LMC). Previously determined parameters of the system are…

太阳与恒星天体物理 · 物理学 2015-05-27 Alceste Z. Bonanos , Norberto Castro , Lucas M. Macri , Rolf-Peter Kudritzki

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…

高能天体物理现象 · 物理学 2021-01-06 Anna Wolz , Kent Yagi , Nick Anderson , Andrew J. Taylor

Mira variables are useful distance indicators, due to their high luminosities and well-defined period-luminosity relation. We select 1863 Miras from SAAO and MACHO observations to examine their use as distance estimators in the Milky Way.…

太阳与恒星天体物理 · 物理学 2018-09-24 Wenzer Qin , David M. Nataf , Nadia Zakamska , Peter R. Wood , Luca Casagrande

In the era of precision cosmology it is essential to determine the Hubble Constant with an accuracy of 3% or better. Currently, its uncertainty is dominated by the uncertainty in the distance to the Large Magellanic Cloud (LMC) which as the…

The upcoming LISA mission will be able to detect gravitational waves from galactic and extragalactic compact binaries. Here, we report on LISA's capability to probe dark matter around these binaries if the latter constitute black holes. By…

宇宙学与河外天体物理 · 物理学 2025-01-17 Sohan Ghodla

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…

高能天体物理现象 · 物理学 2024-10-31 Naoki Seto

We extend and improve earlier estimates of the ability of the proposed LISA (Laser Interferometer Space Antenna) gravitational wave detector to place upper bounds on the graviton mass, m_g, by comparing the arrival times of gravitational…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Curt Cutler , William A. Hiscock , Shane L. Larson

We present the mid-infrared (mid-IR) period$-$luminosity relations (PLRs) using over 1000 Mira variables in the Large Magellanic Cloud (LMC), for the four Wide-Field Infrared Survey Explorer (WISE) and the four Spitzer bands. These PLRs…

太阳与恒星天体物理 · 物理学 2021-10-04 Patryk Iwanek , Igor Soszyński , Szymon Kozłowski

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…

广义相对论与量子宇宙学 · 物理学 2022-11-28 Adrien Bourgoin , Christophe Le Poncin-Lafitte , Stéphane Mathis , Marie-Christine Angonin