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Cosmic Background of Gravitational Waves from Rotating Neutron Stars

T. Regimbau·J. A. de Freitas Pacheco
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Abstract

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 (2000). For an equatorial ellipticity of $ε$ = 10$^{-6}$, the equivalent density parameter due to gravitational waves has a maximum amplitude in the range 2$\times10^{-11}-3\times10^{-9}$, around 0.9-1.5 kHz. The main reasons 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.

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T. Regimbau, J. A. de Freitas Pacheco. 2001-05-16. Cosmic Background of Gravitational Waves from Rotating Neutron Stars. https://doi.org/10.1051/0004-6361%3A20011005

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