Home > Research > Publications & Outputs > Search for continuous gravitational wave emissi...

Associated organisational unit

Electronic data

  • Galactic_Center_search_O3

    Rights statement: © 2022 American Physical Society

    Accepted author manuscript, 760 KB, PDF document

    Available under license: CC BY: Creative Commons Attribution 4.0 International License


Text available via DOI:

View graph of relations

Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • LIGO Scientific Collaboration, Virgo Collaboration & KAGRA Collaboration
Article number042003
<mark>Journal publication date</mark>15/08/2022
<mark>Journal</mark>Physical Review D
Issue number4
Number of pages24
Publication StatusPublished
Early online date9/08/22
<mark>Original language</mark>English


We present a directed search for continuous gravitational wave (CW) signals emitted by spinning neutron stars located in the inner parsecs of the Galactic Center (GC). Compelling evidence for the presence of a numerous population of neutron stars has been reported in the literature, turning this region into a very interesting place to look for CWs. In this search, data from the full O3 LIGO-Virgo run in the detector frequency band [10,2000] Hz have been used. No significant detection was found and 95% confidence level upper limits on the signal strain amplitude were computed, over the full search band, with the deepest limit of about 7.6×10-26 at ≃142 Hz. These results are significantly more constraining than those reported in previous searches. We use these limits to put constraints on the fiducial neutron star ellipticity and r-mode amplitude. These limits can be also translated into constraints in the black hole mass-boson mass plane for a hypothetical population of boson clouds around spinning black holes located in the GC.

Bibliographic note

© 2022 American Physical Society