TY - JOUR
T1 - Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO--Virgo data
AU - LIGO Scientific and Virgo Collaboration
AU - Vecchio, Alberto
AU - Schmidt, Patricia
AU - Pratten, Geraint
AU - Buscicchio, Riccardo
AU - Moore, Chris
AU - Smetana, Jiri
AU - Agatsuma, Kazuhiro
AU - Stops, David
AU - Mow-Lowry, Conor
AU - Ubhi, Amit
AU - Prokhorov, Leonid
AU - Martynov, Denis
AU - Zhang, Teng
AU - Maggiore, Riccardo
N1 - Not yet published as of 08/08/2022
PY - 2022/6/29
Y1 - 2022/6/29
N2 - 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.
AB - 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.
M3 - Article
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
ER -