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

, LIGO Scientific Collaboration, Virgo Collaboration & KAGRA Colla (2022) Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data. Physical Review D, 106 (4). ISSN 1550-7998

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Additional Information:
© 2022 American Physical Society
ID Code:
179057
Deposited By:
Deposited On:
11 Nov 2022 14:35
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2022 01:13