Search for gravitational waves from compact binary coalescence in LIGO and Virgo data from S5 and VSR1

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Abstract

We report the results of the first search for gravitational waves from compact binary coalescence using data from the Laser Interferometer Gravitational-Wave Observatory and Virgo detectors. Five months of data were collected during the Laser Interferometer Gravitational-Wave Observatory's S5 and Virgo's VSR1 science runs. The search focused on signals from binary mergers with a total mass between 2 and $35{M}_{\ensuremath{\bigodot}}$. No gravitational waves are identified. The cumulative 90%-confidence upper limits on the rate of compact binary coalescence are calculated for nonspinning binary neutron stars, black hole-neutron star systems, and binary black holes to be $8.7\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}\text{ }\text{ }{\mathrm{yr}}^{\ensuremath{-}1}\text{ }{\mathrm{L}}_{10}^{\ensuremath{-}1}$, $2.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}\text{ }\text{ }{\mathrm{yr}}^{\ensuremath{-}1}\text{ }{\mathrm{L}}_{10}^{\ensuremath{-}1}$, and $4.4\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}\text{ }\text{ }{\mathrm{yr}}^{\ensuremath{-}1}\text{ }{\mathrm{L}}_{10}^{\ensuremath{-}1}$, respectively, where ${\mathrm{L}}_{10}$ is ${10}^{10}$ times the blue solar luminosity. These upper limits are compared with astrophysical expectations.

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