Search for gravitational waves from galactic and extra-galactic binary neutron stars

B. Abbott, C.A. Cantley, LIGO Scientific Collaboration

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We use 373 hours (≈15 days) of data from the second science run of the LIGO gravitational-wave detectors to search for signals from binary neutron star coalescences within a maximum distance of about 1.5 Mpc, a volume of space which includes the Andromeda Galaxy and other galaxies of the Local Group of galaxies. This analysis requires a signal to be found in data from detectors at the two LIGO sites, according to a set of coincidence criteria. The background (accidental coincidence rate) is determined from the data and is used to judge the significance of event candidates. No inspiral gravitational-wave events were identified in our search. Using a population model which includes the Local Group, we establish an upper limit of less than 47 inspiral events per year per Milky Way equivalent galaxy with 90% confidence for nonspinning binary neutron star systems with component masses between 1 and 3M⊙.
Original languageEnglish
Article number082001
Number of pages22
JournalPhysical Review D
Issue number8
Publication statusPublished - 15 Oct 2005


  • gravitational waves
  • LIGO
  • binary neutron stars


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