@Article{PereiraMira:2010:StBaGr,
author = "Pereira, Eduardo S. and Miranda, Oswaldo Duarte",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Stochastic background of gravitational waves generated by
pre-galactic black holes",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2010",
volume = "401",
number = "3",
pages = "1924--1932",
keywords = "black hole physics • gravitational waves • large-scale structure
of Universe.",
abstract = "In this work, we consider the stochastic background of
gravitational waves (SBGWs) produced by pre-galactic stars, which
form black holes in scenarios of structure formation. The
calculation is performed in the framework of hierarchical
structure formation using a PressSchechter-like formalism. Our
model reproduces the observed star formation rate at redshifts
z\≲ 6.5 . The signal predicted in this work is below the
sensitivity of the first generation of detectors but could be
detectable by the next generation of ground-based interferometers.
Specifically, correlating two coincident advanced Laser
Interferometer Gravitational-Wave Observatory (LIGO) detectors
(LIGO III interferometers), the expected signal-to-noise ratio
(S/N) could be as high as 90 (10) for stars forming at redshift
z\≃ 20 with a Salpeter initial mass function with slope x=
0.35 (1.35), and if the efficiency of generation of gravitational
waves, namely, \εGW is close to the maximum value \∼7
× 10\−4 . However, the sensitivity of the future third
generation of detectors as, for example, the European antenna EGO
could be high enough to produce S/N > 3 same with
\εGW\∼ 2 × 10\−5 . We also discuss what
astrophysical information could be derived from a positive (or
even negative) detection of the SBGWs investigated here.",
doi = "10.1111/j.1365-2966.2009.15774.x",
url = "http://dx.doi.org/10.1111/j.1365-2966.2009.15774.x",
issn = "1365-2966",
language = "en",
targetfile = "stochastic background.pdf",
urlaccessdate = "27 abr. 2024"
}