Volume 376, Number 2, September II 2001
|Page(s)||381 - 385|
|Section||Cosmology (including clusters of galaxies)|
|Published online||15 September 2001|
Cosmic background of gravitational waves from rotating neutron stars
Observatoire de la Côte d'Azur, BP 4229, 06304 Nice Cedex 4, France e-mail: email@example.com
Corresponding author: T. Regimbau, firstname.lastname@example.org
Accepted: 10 May 2001
The extragalactic background of gravitational waves produced by tri-axial rotating neutron stars was calculated, under the assumption that the properties of the underlying pulsar population are the same of those of the galactic population, recently derived by Regimbau & de Freitas Pacheco ([CITE]). For an equatorial ellipticity of ε = 10-6, the equivalent density parameter due to gravitational waves has a maximum amplitude in the range 21010-9, around 0.9-1.5 kHz. The main factors affecting the theoretical predictions are discussed. This background is comparable to that produced by the "ring-down" emission from distorted black holes. The detection possibility of this background by a future generation of gravitational antennas is also examined.
Key words: pulsars: general / gravitational waves / stars: neutron
© ESO, 2001
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