Results 111 to 120 of about 75,914 (210)

The implications of precise timekeeping of Doppler gravitational wave observations [PDF]

open access: yes, 1982
Gravitational radiation from galactic and extragalactic astrophysical sources will induce spatial strains in the solar system, strains which can be measured directly by the Doppler radio link to distant spacecraft.
Anderson, J. D.   +2 more
core   +1 more source

A Search for Extra Polarizations Using a Gaussian Process in Gravitational-wave Transient Catalog 3

open access: yesThe Astrophysical Journal
General relativity predicts that gravitational waves are described by two polarization states: the plus + state and cross × state. However, alternate theories of gravity allow up to six polarizations.
Shun Yin Cheung   +3 more
doaj   +1 more source

Examining the Gap in the Chirp Mass Distribution of Binary Black Holes

open access: yesThe Astrophysical Journal
The mass distribution of binary black holes inferred from gravitational-wave measurements is expected to shed light on their formation mechanisms. An emerging structure in the mass distribution indicates the presence of multiple peaks around chirp masses
Vaibhav Tiwari
doaj   +1 more source

Trends in the Population of Binary Black Holes Following the Fourth Gravitational-wave Transient Catalog: A Data-driven Analysis

open access: yesThe Astrophysical Journal
Current models of binary black hole distributions are difficult to interpret because inferences hinge on modeling choices, which can mask or mimic real structure.
Nir Guttman   +3 more
doaj   +1 more source

Optical Appearance of Eccentric Tidal Disruption Events

open access: yesThe Astrophysical Journal Letters
Stars approaching supermassive black holes can be tidally disrupted. Despite being expected to emit X-rays, tidal disruption events (TDEs) have been largely observed in optical bands, which is poorly understood.
Fangyi (Fitz) Hu   +2 more
doaj   +1 more source

The promises of gravitational-wave astronomy. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2018
Martin IW   +3 more
europepmc   +1 more source

The Kick Velocity Distribution of Isolated Neutron Stars

open access: yesThe Astrophysical Journal Letters
Neutron stars (NSs) are thought to receive natal kicks at their formation in supernovae. In order to investigate the magnitude of these kicks, we analyze the proper motions and distance estimates—through either parallax or dispersion measures—of young ...
Paul Disberg, Ilya Mandel
doaj   +1 more source

Expansion of Accreting Main-sequence Stars during Rapid Mass Transfer

open access: yesThe Astrophysical Journal Letters
Accreting main-sequence stars expand significantly when the mass accretion timescale is much shorter than their thermal timescales. This occurs during mass transfer from an evolved giant star onto a main-sequence companion in a binary system and is an ...
Mike Y. M. Lau   +3 more
doaj   +1 more source

Deriving the properties of space time using the non-compressible solutions of the Navier-Stokes Equations

open access: yes, 2019
Recent observations of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO) has confirmed one of the last outstanding predictions in general relativity and in the process opened up a new frontier in astronomy and ...
McDuffee, Ryan
core  

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