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Characterizing the galactic gravitational wave background with LISA

Seth E. Timpano*, Louis J. Rubbo†, and Neil J. Cornish

  • Department of Physics, Montana State University, Bozeman, Montana 59717, USA

  • *Current address: Center for Gravitational Wave Physics, Pennsylvania State University, University Park, PA 16802.
  • †Current address: Center for Gravitational Wave Physics, Pennsylvania State University, University Park, PA 16802.
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Phys. Rev. D 73, 122001 – Published 2 June, 2006

DOI: https://doi.org/10.1103/PhysRevD.73.122001

Abstract

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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Phys. Rev. D 73, 122001– Published 2 June, 2006
  • Received 7 December 2005

© 2006 American Physical Society

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