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

Abbott, R, Abe, H, Acernese, F et al. (2022). Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data . PHYSICAL REVIEW D, 106(4), 10.1103/PhysRevD.106.042003

cited authors

  • Abbott, R; Abe, H; Acernese, F; Ackley, K; Adhikari, N; Adhikari, RX; Adkins, VK; Adya, VB; Affeldt, C; Agarwal, D; Agathos, M; Agatsuma, K; Aggarwal, N; Aguiar, OD; Aiello, L; Ain, A; Ajith, P; Akutsu, T; Albanesi, S; Alfaidi, RA; Allocca, A; Altin, PA; Amato, A; Anand, C; Anand, S; Ananyeva, A; Anderson, SB; Anderson, WG; Ando, M; Andrade, T; Andres, N; Andrés-Carcasona, M; Andrić, T; Angelova, SV; Ansoldi, S; Antelis, JM; Antier, S; Apostolatos, T; Appavuravther, EZ; Appert, S; Apple, SK; Arai, K; Araya, A; Araya, MC; Areeda, JS; Arène, M; Aritomi, N; Arnaud, N; Arogeti, M; Aronson, SM; Arun, KG; Asada, H; Asali, Y; Ashton, G; Aso, Y; Assiduo, M; De Souza Melo, SA; Aston, SM; Astone, P; Aubin, F; Aultoneal, K; Austin, C; Babak, S; Badaracco, F; Bader, MKM; Badger, C; Bae, S; Bae, Y; Baer, AM; Bagnasco, S; Bai, Y; Baird, J; Bajpai, R; Baka, T; Ball, M; Ballardin, G; Ballmer, SW; Balsamo, A; Baltus, G; Banagiri, S; Banerjee, B; Bankar, D; Barayoga, JC; Barbieri, C; Barish, BC; Barker, D; Barneo, P; Barone, F; Barr, B; Barsotti, L; Barsuglia, M; Barta, D; Bartlett, J; Barton, MA; Bartos, I; Basak, S; Bassiri, R; Basti, A; Bawaj, M; Bayley, JC


  • 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.

publication date

  • August 15, 2022

published in

Digital Object Identifier (DOI)


  • 106


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