First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data

LIGO Scientific Collaboration, Virgo Collaboration

Research output: Contribution to journalArticleAcademicpeer-review

50 Citations (Web of Science)


We report results of a deep all-sky search for periodic gravitational waves from isolated neutron stars in data from the first Advanced LIGO observing run. This search investigates the low frequency range of Advanced LIGO data, between 20 and 100 Hz, much of which was not explored in initial LIGO. The search was made possible by the computing power provided by the volunteers of the Einstein@Home project. We find no significant signal candidate and set the most stringent upper limits to date on the amplitude of gravitational wave signals from the target population, corresponding to a sensitivity depth of 48.7 [1/root Hz]. At the frequency of best strain sensitivity, near 100 Hz, we set 90% confidence upper limits of 1.8 x 10(-25). At the low end of our frequency range, 20 Hz, we achieve upper limits of 3.9 x 10(-24). At 55 Hz we can exclude sources with ellipticities greater than 10(-5) within 100 pc of Earth with fiducial value of the principal moment of inertia of 10(38) kg m(2).
Original languageEnglish
Article number122004
Number of pages26
JournalPhysical Review D
Issue number12
Publication statusPublished - 8 Dec 2017
Externally publishedYes

Cite this