Results 21 to 30 of about 381,601 (342)

Gravitational-wave Sources from Mergers of Binary Black Holes Catalyzed by Flyby Interactions in the Field [PDF]

open access: yesAstrophysical Journal, 2019
Several scenarios were suggested for the origins of gravitational-wave (GW) sources from mergers of stellar binary black holes (BBHs). Here we propose a novel origin through catalyzed formation of GW sources from ultra-wide binaries in the field.
E. Michaely, H. Perets
semanticscholar   +1 more source

Using deep learning to localize gravitational wave sources [PDF]

open access: yesPhysical Review D, 2019
In this paper, we report on the construction of a deep Artificial Neural Network (ANN) to localize simulated gravitational wave signals in the sky with high accuracy.
C. Chatterjee   +4 more
semanticscholar   +1 more source

Gravitational wave sources from inspiralling globular clusters in the Galactic Centre and similar environments [PDF]

open access: yes, 2018
We model the inspiral of globular clusters (GCs) towards a galactic nucleus harboring a supermassive black hole (SMBH), a leading scenario for the formation of nuclear star clusters.We consider the case of GCs containing either an intermediate-mass ...
M. A. Sedda, A. Gualandris
semanticscholar   +1 more source

Astrometric Search Method for Individually Resolvable Gravitational Wave Sources with Gaia. [PDF]

open access: yesPhysical Review Letters, 2017
Gravitational waves (GWs) cause the apparent position of distant stars to oscillate with a characteristic pattern on the sky. Astrometric measurements (e.g., those made by Gaia) provide a new way to search for GWs.
C. Moore   +3 more
semanticscholar   +1 more source

Subtracting compact binary foreground sources to reveal primordial gravitational-wave backgrounds [PDF]

open access: yesPhysical Review D, 2020
Detection of primordial gravitational-wave backgrounds generated during the early universe phase transitions is a key science goal for future ground-based detectors.
S. Sachdev   +2 more
semanticscholar   +1 more source

Mass–redshift degeneracy for the gravitational-wave sources in the vicinity of supermassive black holes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2017
Retrieving the mass of a gravitational-wave (GW) source is a fundamental but difficult problem because the mass is degenerate with redshift. In astronomy, three types of redshift exist, namely cosmological, Doppler, and gravitational redshift, but the ...
Xian Chen, Shuo Li, Zhoujian Cao
semanticscholar   +1 more source

Probing anisotropies of the Stochastic Gravitational Wave Background with LISA [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2022
We investigate the sensitivity of the Laser Interferometer Space Antenna (LISA) to the anisotropies of the Stochastic Gravitational Wave Background (SGWB).
N. Bartolo   +21 more
semanticscholar   +1 more source

Research Note: The Expected Spins of Gravitational Wave Sources With Isolated Field Binary Progenitors [PDF]

open access: yes, 2017
We explore the consequences of dynamical evolution of field binaries composed of a primary black hole (BH) and a Wolf-Rayet (WR) star in the context of gravitational wave (GW) source progenitors.
M. Zaldarriaga, D. Kushnir, J. Kollmeier
semanticscholar   +1 more source

Gravitational wave emission from the CMB and other thermal fields

open access: yesPhysics Letters B, 2021
We calculate the gravitational wave power density emitted by quantum thermal sources. As particular cases, we calculate the emission of gravitational waves from the cosmic microwave background and from stellar sources.
Petar Simidzija   +2 more
doaj   +1 more source

GRB 211211A-like Events and How Gravitational Waves May Tell Their Origins

open access: yesThe Astrophysical Journal Letters, 2023
GRB 211211A is a rare burst with a genuinely long duration, yet its prominent kilonova association provides compelling evidence that this peculiar burst was the result of a compact binary merger.
Yi-Han Iris Yin   +7 more
doaj   +1 more source

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