First search for gravitational waves from known pulsars with Advanced LIGO

The LIGO Scientific Collaboration, Virgo Collaboration, I. W. Harry, D. Keitel, A. P. Lundgren, L. K. Nuttall, A. R. Williamson

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We present the result of searches for gravitational waves from 200 pulsars using data from the first observing run of the Advanced LIGO detectors. We find no significant evidence for a gravitational-wave signal from any of these pulsars, but we are able to set the most constraining upper limits yet on their gravitational-wave amplitudes and ellipticities. For eight of these pulsars, our upper limits give bounds that are improvements over the indirect spin-down limit values. For another 32, we are within a factor of 10 of the spin-down limit, and it is likely that some of these will be reachable in future runs of the advanced detector. Taken as a whole, these new results improve on previous limits by more than a factor of two.
Original languageEnglish
Article number12
Number of pages24
JournalThe Astrophysical Journal
Issue number1
Publication statusPublished - 7 Apr 2017


  • astro-ph.HE
  • gr-qc
  • gravitational waves
  • pulsars: general
  • RCUK
  • STFC


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