Gravitational Wave Background from a Cosmological Population of Core-Collapse Supernovae

Details Gravitational Wave Background from a Cosmological Population of Core-Collapse Supernovae Gravitational Wave Background from a Cosmological Population of Core-Collapse Supernovae

1998-04-24

arxiv.org/abs/astro-ph/9804259v2

Mon.Not.Roy.Astron.Soc. 303 (1999) 247

Astronomy and Astrophysics

Astrophysics

12 pages, LaTeX (uses mn.sty), 13 figures, 2 tables, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.1999.02194.x

We analyse the stochastic background of gravitational radiation emitted by a cosmological population of core-collapse supernovae. The supernova rate as a function of redshift is deduced from an observation-based determination of the star formation rate density evolution. We then restrict our analysis to the range of progenitor masses leading to black hole collapse. In this case, the main features of the gravitational-wave emission spectra have been shown to be, to some extent, independent of the initial conditions and of the equation of state of the collapsing star, and to depend only on the black hole mass and angular momentum. We calculate the overall signal produced by the ensemble of black-hole collapses throughout the Universe, assuming a flat cosmology with vanishing cosmological constant. Within a wide range of parameter values, we find that the spectral strain amplitude has a maximum at a few hundred Hz with an amplitude between $10^{-28}$ and $10^{-27} Hz^{-1/2}$; the corresponding closure density, $\Omega_{GW}$, has a maximum amplitude ranging between $10^{-11}$ and $10^{-10}$ in the frequency interval $\sim 1.5-2.5$ kHz. Contrary to previous claims, our observation-based determination leads to a duty cycle of order 0.01, making our stochastic backgound a non-continuous one. Although the amplitude of our background is comparable to the sensitivity that can be reached by a pair of advanced LIGO detectors, the characteristic shot-noise structure of the predicted signal might be in principle exploited to design specific detection strategies.

Affiliated with

Also associated with

No associations

Rating

Gravitational Wave Background from a Cosmological Population of Core-Collapse Supernovae 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 a Cosmological Population of Core-Collapse Supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Wave Background from a Cosmological Population of Core-Collapse Supernovae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-125858