Results 11 to 20 of about 284,905 (340)

Dirty waveforms: multiband harmonic content of gas-embedded gravitational wave sources [PDF]

open access: yes, 2021
We analyse the effect of stochastic torque fluctuations on the orbital evolution and the gravitational wave (GW) emission of gas-embedded sources with intermediate and extreme mass ratios.
L. Zwick   +4 more
semanticscholar   +1 more source

Shouts and Murmurs: Combining Individual Gravitational-wave Sources with the Stochastic Background to Measure the History of Binary Black Hole Mergers [PDF]

open access: yesAstrophysical Journal, 2020
One of the goals of gravitational-wave astronomy is to quantify the evolution of the compact binary merger rate with redshift. The redshift distribution of black hole mergers would offer considerable information about their evolutionary history ...
T. Callister   +3 more
semanticscholar   +1 more source

Sources of Gravitational Waves [PDF]

open access: yesProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 2006
Sources of low frequency gravitational radiation are reviewed from an astrophysical point of view. Cosmological sources include the formation of massive black holes in galactic nuclei, the capture by such holes of neutron stars, the coalescence of orbiting pairs of giant black holes, and various means of producing a stochastic background of ...
  +6 more sources

Cylindrical Gravitational Wave: Source and Resonance [PDF]

open access: yesSymmetry, 2021
Gravitational waves are regarded as linear waves in the weak field approximation, which ignores the spacetime singularity. In this paper, we analyze singularities in exact gravitational wave solutions. We provide an exact general solution of the gravitational wave with cylindrical symmetry.
Yu-Zhu Chen   +3 more
openaire   +1 more source

A Systematic Search of Zwicky Transient Facility Data for Ultracompact Binary LISA-detectable Gravitational-wave Sources [PDF]

open access: yesAstrophysical Journal, 2020
Using photometry collected with the Zwicky Transient Facility, we are conducting an ongoing survey for binary systems with short orbital periods ( with the goal of identifying new gravitational-wave sources detectable by the upcoming Laser Interferometer
K. Burdge   +33 more
semanticscholar   +1 more source

Quantifying modeling uncertainties when combining multiple gravitational-wave detections from binary neutron star sources [PDF]

open access: yes, 2022
With the increasing sensitivity of gravitational-wave detectors, we expect to observe multiple binary neutron-star systems through gravitational waves in the near future. The combined analysis of these gravitational-wave signals offers the possibility to
Tews, Ingo   +13 more
core   +2 more sources

Accurate precision cosmology with redshift unknown gravitational wave sources [PDF]

open access: yes, 2020
Gravitational waves can provide an accurate measurement of the luminosity distance to the source but cannot provide the source redshift unless the degeneracy between mass and redshift can be broken.
S. Mukherjee   +3 more
semanticscholar   +1 more source

Enhancing gravitational wave anisotropies with peaked scalar sources [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2022
Gravitational wave (GW) backgrounds of cosmological origin are expected to be nearly isotropic, with small anisotropies resembling those of the cosmic microwave background.
E. Dimastrogiovanni   +3 more
semanticscholar   +1 more source

Dropping Anchor: Understanding the Populations of Binary Black Holes with Random and Aligned-spin Orientations

open access: yesThe Astrophysical Journal, 2023
The relative spin orientations of black holes (BHs) in binaries encode their evolutionary history: BHs assembled dynamically should have isotropically distributed spins, while spins of BHs originating in the field should be aligned with the orbital ...
Vishal Baibhav   +2 more
doaj   +1 more source

Search Methods for Continuous Gravitational-Wave Signals from Unknown Sources in the Advanced-Detector Era [PDF]

open access: yesUniverse, 2021
Continuous gravitational waves are long-lasting forms of gravitational radiation produced by persistent quadrupolar variations of matter. Standard expected sources for ground-based interferometric detectors are neutron stars presenting non-axisymmetries ...
R. Tenorio, D. Keitel, A. Sintes
semanticscholar   +1 more source

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