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.
B. P. Abbott et al., "First Search for Gravitational Waves from Known Pulsars with Advanced LIGO," Astrophysical Journal, vol. 839, no. 1, Institute of Physics - IOP Publishing, Apr 2017.
The definitive version is available at https://doi.org/10.3847/1538-4357/aa677f
Keywords and Phrases
Gravitational waves; Pulsars: general
International Standard Serial Number (ISSN)
Article - Journal
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01 Apr 2017