Results 21 to 30 of about 3,576 (162)

Gravitational Wave Sources: An Overview [PDF]

open access: yesAIP Conference Proceedings, 2003
With full‐sensitivity operation of the first generation of gravitational wave detectors now just around the corner, and with the LISA space‐based detector entering its final design stage, I review the wide variety of predicted sources from the perspective of what further theoretical work may be needed to assist in their detection. Some sources, such as
openaire   +2 more sources

GRAVITATIONAL WAVES FROM COALESCING BINARY SOURCES [PDF]

open access: yesInternational Journal of Modern Physics D, 2010
Coalescing binary systems (e.g. pulsars, neutron stars and black holes) are currently considered to be the most likely sources of gravitational radiation, yet to be detected on or near Earth, where the local gravitational field is negligible and the Poincaré symmetry rules.
openaire   +3 more sources

Binary Systems As Gravitational Wave Sources [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractBinary systems with compact components and some newly discovered systems with relatively short orbital periods are studied as gravitational-wave sources. The gravitational wave amplitudes of these systems have been compared with the limit of gravitational wave interferometers (e.g. LISA, LIGO, and VIRGO).
Yakut K., Köse O.
openaire   +2 more sources

Measuring the Hubble Constant with Dark Neutron Star–Black Hole Mergers

open access: yesThe Astrophysical Journal, 2023
Detection of gravitational waves (GWs) from neutron star-black hole (NSBH) standard sirens provides local measurements of the Hubble constant ( H _0 ), regardless of the detection of an electromagnetic (EM) counterpart, given that matter effects can be ...
Banafsheh Shiralilou   +6 more
doaj   +1 more source

Gravitational Waves from Generalized Newtonian Sources [PDF]

open access: yesFortschritte der Physik, 2019
AbstractI review the elementary theory of gravitational waves on a Minkowski background and the quadrupole approximation. The modified conservation laws for energy and momentum keeping track of the gravitational‐wave flux are presented. The theory is applied to two‐body systems in bound and scattering states subject to newtonian gravity generalized to ...
openaire   +4 more sources

A new gravitational wave verification source [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2014
Abstract We report the discovery of a detached 20-min orbital period binary white dwarf (WD). WD 0931+444 (SDSS J093506.93+441106.9) was previously classified as a WD + M dwarf system based on its optical spectrum. Our time-resolved optical spectroscopy observations obtained at the 8 m Gemini and 6.5 m MMT reveal peak-to-peak radial ...
M. Kilic   +5 more
openaire   +2 more sources

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

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

Barrow entropy and stochastic gravitational wave background generated from cosmological QCD phase transition

open access: yesPhysics Letters B, 2023
In this work we investigate the stochastic gravitational wave background generated during the first-order cosmological QCD phase transition of the early universe in the framework of the Barrow entropy.
Qi-Min Feng   +3 more
doaj   +1 more source

Strongly Lensed Supermassive Black Hole Binaries as Nanohertz Gravitational-wave Sources

open access: yesThe Astrophysical Journal, 2023
Supermassive black hole binary systems (SMBHBs) should be the most powerful sources of gravitational waves (GWs) in the universe. Once pulsar timing arrays (PTAs) detect the stochastic GW background from their cosmic merger history, searching for ...
Nicole M. Khusid   +4 more
doaj   +1 more source

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