scholarly journals Energy budget and the gravitational wave spectra beyond the bag model

2021 ◽  
Vol 103 (10) ◽  
Author(s):  
Xiao Wang ◽  
Fa Peng Huang ◽  
Xinmin Zhang
Keyword(s):  
Gravitational Wave ◽  
Energy Budget ◽  
Wave Spectra ◽  
Bag Model

scholarly journals Matched-filter study and energy budget suggest no detectable gravitational-wave ‘extended emission’ from GW170817

2019 ◽  
Vol 485 (1) ◽  
pp. 843-850 ◽  
Author(s):  
Miquel Oliver ◽  
David Keitel ◽  
Andrew L Miller ◽  
Hector Estelles ◽  
Alicia M Sintes
Keyword(s):  
Gravitational Wave ◽  
Energy Budget ◽  
Matched Filter ◽  
Extended Emission

scholarly journals Coalescence of black hole–neutron star binaries

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Koutarou Kyutoku ◽  
Masaru Shibata ◽  
Keisuke Taniguchi
Keyword(s):  
Black Hole ◽  
Neutron Star ◽  
Gravitational Wave ◽  
High Precision ◽  
Numerical Relativity ◽  
Current Status ◽  
Wave Spectra ◽  
Tidal Disruption ◽  
Merger Process ◽  
General Relativistic

AbstractWe review the current status of general relativistic studies for coalescences of black hole–neutron star binaries. First, high-precision computations of black hole–neutron star binaries in quasiequilibrium circular orbits are summarized, focusing on the quasiequilibrium sequences and the mass-shedding limit. Next, the current status of numerical-relativity simulations for the merger of black hole–neutron star binaries is described. We summarize our understanding for the merger process, tidal disruption and its criterion, properties of the merger remnant and ejected material, gravitational waveforms, and gravitational-wave spectra. We also discuss expected electromagnetic counterparts to black hole–neutron star coalescences.

scholarly journals Gravitational wave energy budget in strongly supercooled phase transitions

2019 ◽  
Vol 2019 (06) ◽  
pp. 024-024 ◽  
Author(s):  
John Ellis ◽  
Marek Lewicki ◽  
José Miguel No ◽  
Ville Vaskonen
Keyword(s):  
Phase Transitions ◽  
Gravitational Wave ◽  
Energy Budget ◽  
Wave Energy

scholarly journals Pulsar Identification of Background Spectra of LIGO Data

2018 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Black Holes ◽  
Exact Solution ◽  
General Relativity ◽  
Time Delay ◽  
Neutron Stars ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Compact Objects ◽  
Gravitational Redshift ◽  
Wave Spectra

By choosing the metric (called physical metric) in general relativity as the exact solution to the Einstein equation that fits the time delay data, one can determine the size and gravitational redshift on the surface of compact objects (neutron stars and black holes). The author shows that the physical metric is invariant by rotation. As a result, the frequencies of gravitational waves from pulsars are represented as n * f / for pulsar frequency f and harmonics n. Based on this result, the author has identified potential pulsar candidates with gravitational wave spectra. This result will be critical in the study of gravitational redshift of compact objects.

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