Characterizing the Galactic Gravitational Wave Background with LISA

Details Characterizing the Galactic Gravitational Wave Background with LISA Characterizing the Galactic Gravitational Wave Background with LISA

2005-04-15

arxiv.org/abs/gr-qc/0504071v4

Phys.Rev. D73 (2006) 122001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

32 pages, 14 figures. Version to appear in PRD

Scientific paper

10.1103/PhysRevD.73.122001

We present a Monte Carlo simulation for the response of the Laser Interferometer Space Antenna (LISA) to the galactic gravitational wave background. The simulated data streams are used to estimate the number and type of binary systems that will be individually resolved in a 1-year power spectrum. We find that the background is highly non-Gaussian due to the presence of individual bright sources, but once these sources are identified and removed, the remaining signal is Gaussian. We also present a new estimate of the confusion noise caused by unresolved sources that improves on earlier estimates.

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