Results 91 to 100 of about 75,914 (210)

A new source of phase transition gravitational waves: heavy particle braking across bubble walls

open access: yesJournal of High Energy Physics
Motivated by the new heavy dark matter production mechanism from cosmic phase transition, we propose a novel mechanism for the generation of microscopic gravitational waves (GWs) during cosmological first-order phase transitions arising from the braking ...
Dayun Qiu, Siyu Jiang, Fa Peng Huang
doaj   +1 more source

The missing link in gravitational-wave astronomy: A summary of discoveries waiting in the decihertz range. [PDF]

open access: yesExp Astron (Dordr), 2021
Sedda MA   +27 more
europepmc   +1 more source

Gravitational wave astronomy: needle in a haystack [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
A worldwide array of highly sensitive ground-based interferometers stands poised to usher in a new era in astronomy with the first direct detection of gravitational waves. The data from these instruments will provide a unique perspective on extreme astrophysical objects, such as neutron stars and black holes, and will allow us to test Einstein’s theory
openaire   +4 more sources

Modeling the Rising Tails of Galaxy Rotation Curves

open access: yesGalaxies, 2019
It is well known, but under-appreciated in astrophysical applications, that it is possible for gravity to take on a life of its own in the form of Weyl-curvature-only metrics (note that we are referring to the Weyl-only solutions of ordinary General ...
Fan Zhang
doaj   +1 more source

Do Both Black Holes Spin in Merging Binaries? Evidence from GWTC-4 and Astrophysical Implications

open access: yesThe Astrophysical Journal
Angular momentum transport in high-mass stars is commonly modeled by extrapolating the behavior of better-observed low-mass stars. According to the conventional picture, the cores of most black hole progenitors lose almost all of their angular momentum ...
Christian Adamcewicz   +3 more
doaj   +1 more source

Analysis of the effect of coupling coefficients on the slope of PDH-locked frequency discriminator

open access: yesAIP Advances
The effects of the coupling coefficients on the reflected field and the error signal under various misalignments and near-axis conditions are analyzed, and some basic features of the error signal are investigated.
Qicheng Sun   +9 more
doaj   +1 more source

No Evidence for a Dip in the Binary Black Hole Mass Spectrum

open access: yesThe Astrophysical Journal
Stellar models indicate that the core compactness of a star, which is a common proxy for its explodability in a supernova, does not increase monotonically with the star’s mass.
Christian Adamcewicz   +3 more
doaj   +1 more source

Search for Electromagnetic Counterparts to LIGO-Virgo Candidates: Expanded Very Large Array

open access: yes, 2012
This paper summarizes a search for radio wavelength counterparts to candidate gravitational wave events. The identification of an electromagnetic counterpart could provide a more complete understanding of a gravitational wave event, including such ...
Collaboration, the LIGO Scientific   +5 more
core   +1 more source

Data Transmission Analysis and Communication Scheme Design for TianQin Mission

open access: yesIEEE Access
Compared with ground-based gravitational wave detection, space-based gravitational wave detection has become a research hotspot because of its abundant wave sources.
Zhaoxiang Yi, Lin Sun, Meng Jiang
doaj   +1 more source

Decline of the Current Quadrupole Moment during the Merger Phase of Binary Black Hole Coalescence

open access: yesUniverse, 2019
Utilizing the tools of tendex and vortex, we study the highly dynamic plunge and merger phases of several π -symmetric binary black hole coalescences. In particular, we observe a decline of the strength of the current quadrupole moment compared
Fan Zhang
doaj   +1 more source

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