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

Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data / Abbott, R., Abe, H., Acernese, F., Ackley, K., Adhikari, N., Adhikari, R. x., Adkins, V. k., Adya, V. b., Affeldt, C., Agarwal, D., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. d., Aiello, L., Ain, A., Ajith, P., Akutsu, T., Albanesi, S., Alfaidi, R. a., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 106:4(2022). [10.1103/physrevd.106.042003]

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

Allocca, A.;Calloni, E.;De Laurentis, M.;Dell'Aquila, D.;De Rosa, R.;Di Girolamo, T.;D'Onofrio, L.;Errico, L.;Garufi, F.;Rosa, L.;Sequino, V.;
2022

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
2022
Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data / Abbott, R., Abe, H., Acernese, F., Ackley, K., Adhikari, N., Adhikari, R. x., Adkins, V. k., Adya, V. b., Affeldt, C., Agarwal, D., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. d., Aiello, L., Ain, A., Ajith, P., Akutsu, T., Albanesi, S., Alfaidi, R. a., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 106:4(2022). [10.1103/physrevd.106.042003]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/972268
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