Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-09-27
Mon.Not.Roy.Astron.Soc.364:1063-1068,2005
Astronomy and Astrophysics
Astrophysics
6 pages, 4 figures, accepted for publication in MNRAS
Scientific paper
10.1111/j.1365-2966.2005.09643.x
We discuss the gravitational wave background (GWB) from a cosmological population of gamma-ray bursts (GRBs). Among various emission mechanisms for the gravitational waves (GWs), we pay a particular attention to the vast anisotropic neutrino emissions from the accretion disk around the black hole formed after the so-called failed supernova explosions. The produced GWs by such mechanism are known as burst with memory, which could dominate over the low-frequency regime below \sim 10Hz. To estimate their amplitudes, we derive general analytic formulae for gravitational waveform from the axisymmetric jets. Based on the formulae, we first quantify the spectrum of GWs from a single GRB. Then, summing up its cosmological population, we find that the resultant value of the density parameter becomes roughly \Omega_{GW} \approx 10^{-20} over the wide-band of the low-frequency region, f\sim 10^{-4}-10^1Hz. The amplitude of GWB is sufficiently smaller than the primordial GWBs originated from an inflationary epoch and far below the detection limit.
Hiramatsu Takashi
Kotake Kei
Kudoh Hideaki
Taruya Atsushi
No associations
LandOfFree
Gravitational Wave Background from Neutrino-Driven Gamma-Ray Bursts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Gravitational Wave Background from Neutrino-Driven Gamma-Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Wave Background from Neutrino-Driven Gamma-Ray Bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-225167