TY - JOUR
T1 - A cosmological background of gravitational waves produced by supernovae in the early Universe
AU - Blair, David
AU - Ju, Li
PY - 1996
Y1 - 1996
N2 - Simple arguments demonstrate that the rate of supernovae within a redshift horizon of z similar to 2 is at least of the order of 10(10) yr(-1) or 1000 s(-1) , This rate could be enhanced by more than an order of magnitude if the supernova rate in the early Universe is enhanced as predicted by star formation models, metallicity observations and the recent observations of an abundance of faint blue galaxies at high redshift, The gravitational waves from supernovae in the early Universe create a continuous stochastic background, The amplitude of this background depends on the efficiency of gravitational wave production in supernovae, which in turn depends on the fraction of collapses which ct-sate neutron stars and black holes, the dynamics of the collapse and the post collapse evolution of the system. It is shown that the stochastic supernova background is detectable by the cross-correlation of nearby detectors if the efficiency of gravitational wave production exceeds 10(-5). The expected spectrum is in the frequency band well-suited for both laser interferometer and resonant mass detectors and cross-correlation between advanced bars and interferometers provides an appropriate means of dectection.
AB - Simple arguments demonstrate that the rate of supernovae within a redshift horizon of z similar to 2 is at least of the order of 10(10) yr(-1) or 1000 s(-1) , This rate could be enhanced by more than an order of magnitude if the supernova rate in the early Universe is enhanced as predicted by star formation models, metallicity observations and the recent observations of an abundance of faint blue galaxies at high redshift, The gravitational waves from supernovae in the early Universe create a continuous stochastic background, The amplitude of this background depends on the efficiency of gravitational wave production in supernovae, which in turn depends on the fraction of collapses which ct-sate neutron stars and black holes, the dynamics of the collapse and the post collapse evolution of the system. It is shown that the stochastic supernova background is detectable by the cross-correlation of nearby detectors if the efficiency of gravitational wave production exceeds 10(-5). The expected spectrum is in the frequency band well-suited for both laser interferometer and resonant mass detectors and cross-correlation between advanced bars and interferometers provides an appropriate means of dectection.
U2 - 10.1093/mnras/283.2.648
DO - 10.1093/mnras/283.2.648
M3 - Article
VL - 283
SP - 648
EP - 650
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 2
ER -