Gravitational wave background from Population III black hole formation

Abstract

We study the generation of a stochastic gravitational wave (GW) background produced from a population of core-collapse supernovae, which form black holes in scenarios of structure formation. We obtain, for example, that the formation of a population (Population III) of black holes, in cold dark matter scenarios, could generate a stochastic GW background with a maximum amplitude of $h_{\mathrm{BG}}\simeq 10^{-24}$ and corresponding closure energy density of ${\Omega }_{\mathrm{GW}}\sim 10^{-7}$, in the frequency band ${\nu }_{\mathrm{obs}}\simeq 30-470\mathrm{Hz}$ (assuming a maximum efficiency of generation of GWs, namely, ${\epsilon }_{\mathrm{G}{\mathrm{W}}_{\max }}=7\times 10^{-4}$) for stars forming at redshifts $z\simeq 30-10.$ We show that it will be possible in the future to detect this isotropic GW background by correlating signals of a pair of `advanced' LIGO observatories (LIGO III) at a signal-to-noise ratio of $\simeq 40$. We discuss what astrophysical information could be obtained from a positive (or even a negative) detection of such a GW background generated in scenarios such as those studied here. One of them is the possibility of obtaining the initial and final redshifts of the emission period from the observed spectrum of GWs.

10 pages (mn2e Latex), 3 eps figures, MNRAS (in press)

Cited by in corpus (14)

• The First Stars
• The astrophysical gravitational wave stochastic background
• The Past, Present and Future of the Resonant-Mass Gravitational Wave Detectors
• Astrophysical Sources of Stochastic Gravitational-Wave Background
• Gravitational Waves from the First Stars
• Gravitational wave backgrounds and the cosmic transition from Population III to Population II stars
• A Systematic Study of the Stochastic Gravitational-Wave Background due to Stellar Core Collapse
• A Model of the Stochastic Gravitational-Wave Background due to Core Collapse to Black Holes
• Massive black hole remnants of the first stars III: observational signatures from the past
• Stochastic background of gravitational waves generated by pre-galactic black holes
• Gravitational wave background from neutron star phase transition
• Stochastic backgrounds of gravitational waves from cosmological sources - The role of dark energy
• Gravitational wave background from neutron star phase transition for a new class of equation of state
• Stochastic Background of Gravitational Waves Generated by Compact Binary Systems