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 ½10; 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), pp. 01-24. [10.1103/physrevd.106.042003]

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

Bini, S.;Cadonati, L.;Ciani, G.;Ciolfi, R.;Di Giovanni, M.;Drago, M.;Giacomazzo, B.;Grimaldi, A.;Leaci, P.;Leonardi, M.;Miani, A.;Perego, A.;Perreca, A.;Prodi, G. A.;Puecher, A.;Salemi, F.;Tiwari, Shubhanshu;Tringali, M. C.;Valentini, M.;Vardaro, M.;Yamamoto, K.;
2022-01-01

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 ½10; 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
4
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.; Agats...espandi
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), pp. 01-24. [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/11572/372009
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