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Gravitational waves (GWs) are lensed by matter, offering a unique probe of both the large-scale structure of the Universe and the fundamental properties of GW propagation. GWs can also be affected by wave optics effects when their…

广义相对论与量子宇宙学 · 物理学 2025-09-03 Juno C. L. Chan , Conor Dyson , Matilde Garcia , Jaime Redondo-Yuste , Luka Vujeva

Galactic interacting double white dwarfs (DWD) are guaranteed gravitational wave (GW) sources for the GW detector LISA, with more than 10^4 binaries expected to be detected over the mission's lifetime. Part of this population is expected to…

太阳与恒星天体物理 · 物理学 2015-05-28 Francesca Valsecchi , Will M. Farr , Bart Willems , Christopher . J. Deloye , Vassiliki Kalogera

Gravitational microlensing has the potential to provide direct gravitational masses of single, free-floating brown dwarfs, independent of evolutionary and atmospheric models. The proper motions and parallaxes of nearby brown dwarfs can be…

太阳与恒星天体物理 · 物理学 2022-11-30 Judah Luberto , Emily C. Martin , Peter McGill , Alexie Leauthaud , Andrew J. Skemer , Jessica R. Lu

Based on the rate of gravitational-wave (GW) detections by Advanced LIGO and Virgo, we expect these detectors to observe hundreds of binary black hole mergers as they achieve their design sensitivities (within a few years). A small fraction…

广义相对论与量子宇宙学 · 物理学 2018-07-19 K. Haris , Ajit Kumar Mehta , Sumit Kumar , Tejaswi Venumadhav , Parameswaran Ajith

Advanced LIGO and Advanced Virgo could observe the first lensed gravitational waves in the coming years, while the future Einstein Telescope could observe hundreds of lensed events. Ground-based gravitational-wave detectors can resolve…

宇宙学与河外天体物理 · 物理学 2020-11-25 Giulia Pagano , Otto A. Hannuksela , Tjonnie G. F. Li

The Laser Interferometer Space Antenna (LISA) will unveil the non-transient gravitational wave sky full of inspiralling stellar-mass compact binaries within the Local Universe. The Large Magellanic Cloud (LMC) is expected to be prominent on…

星系天体物理 · 物理学 2023-03-15 Michael A. Keim , Valeriya Korol , Elena M. Rossi

The gravitational waves (GWs) has been a topic of interest for its versatile capabilities of probing several aspects of cosmology and early Universe. Gravitational lensing enhances further the extent of this sort of waves and upgrade our…

广义相对论与量子宇宙学 · 物理学 2019-02-20 Ashadul Halder , Shibaji Banerjee , Debasish Majumdar

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

Observations of microlensed gravitational waves (GWs) emanated by compact binary coalescences (CBCs) are essential for studying the mass density distribution in the universe, including black holes and dark matter halos. However, no…

广义相对论与量子宇宙学 · 物理学 2025-12-22 So Tanaka , Gopalkrishna Prabhu , Shasvath J. Kapadia , Teruaki Suyama

Like light, gravitational waves are gravitationally lensed by intervening massive astrophysical objects, such as galaxies, clusters, black holes, and stars, resulting in a variety of potentially observable gravitational-wave lensing…

Coalescences of binary white dwarfs represent a copious source of information for gravitational wave interferometers operating in the decihertz band. Moreover, according to the double degenerate scenario, they have been suggested to be…

高能天体物理现象 · 物理学 2020-03-18 Andrea Maselli , Stefania Marassi , Marica Branchesi

We use the non-observation of strong lensing of gravitational waves (GWs) in the first three observation runs of LIGO-Virgo detectors to constrain the fraction of dark matter in the form of compact objects in the mass range…

广义相对论与量子宇宙学 · 物理学 2024-05-28 A. Barsode , S. J. Kapadia , P. Ajith

Gravitational microlensing in the wave-optics (WO) regime occurs when the Schwarzschild radius of a lensing object is comparable to or smaller than the wavelength of incoming gravitational waves (GWs), producing chromatic amplitude and…

广义相对论与量子宇宙学 · 物理学 2025-05-21 Aniruddha Chakraborty , Suvodip Mukherjee

Recent studies have revealed the contribution of extragalactic DWD to the astrophysical SGWB could be detectable in the mHz regime by LISA. Conversely, the presence of this SGWB could hamper the detection of cosmological SGWB, which are one…

广义相对论与量子宇宙学 · 物理学 2025-11-05 Guillaume Boileau , Tristan Bruel , Alexandre Toubiana , Astrid Lamberts , Nelson Christensen

We study the prospects of detecting continuous gravitational waves (CGWs) from spinning neutron stars (NSs), gravitationally lensed by the galactic supermassive black hole. Assuming various astrophysically motivated spatial distributions of…

广义相对论与量子宇宙学 · 物理学 2023-01-13 Soummyadip Basak , Aditya Kumar Sharma , Shasvath J. Kapadia , Parameswaran Ajith

Wave-optics effects in strongly lensed gravitational waves (GWs) provide a new interferometric probe of dark matter substructure. We compute the full diffraction integral for GWs propagating through statistically generated cold dark matter…

宇宙学与河外天体物理 · 物理学 2026-03-05 Shin'ichiro Ando

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…

星系天体物理 · 物理学 2025-10-15 Petra Tang , Renate Meyer , Jan Eldridge

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…

星系天体物理 · 物理学 2019-02-26 Valeriya Korol , Elena M. Rossi , Enrico Barausse

When gravitational waves pass through the nuclear star clusters of galactic lenses, they may be microlensed by the stars. Such microlensing can cause potentially observable beating patterns on the waveform due to waveform superposition and…

高能天体物理现象 · 物理学 2021-03-10 Mark H. Y. Cheung , Joseph Gais , Otto A. Hannuksela , Tjonnie G. F. Li

We consider three extensions of the Navarro, Frenk and White (NFW) profile and investigate the intrinsic degeneracies among the density profile parameters on the gravitational lensing effect of satellite galaxies on highly magnified…

宇宙学与河外天体物理 · 物理学 2015-06-19 Simona Vegetti , Mark Vogelsberger