Despite the growing number of binary black hole coalescences confidently observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains challenging due to the limited availability of gravitational waveforms that include the effects of eccentricity. Here, we present observational results for a waveform-independent search sensitive to eccentric black hole coalescences, covering the third observing run (O3) of the LIGO and Virgo detectors. We identified no new high-significance candidates beyond those that have already been identified with searches focusing on quasi-circular binaries. We determine the sensitivity of our search to high-mass (total source-frame mass M > 70 Me) binaries covering eccentricities up to 0.3 at 15 Hz emitted gravitational-wave frequency, and use this to compare model predictions to search r...

Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo / Abac, A.G., Abbott, R., Abe, H., Acernese, F., Ackley, K., Adamcewicz, C., Adhicary, S., Adhikari, N., Adhikari, R.X., Adkins, V.K., Adya, V.B., Affeldt, C., Agarwal, D., Agathos, M., Aguiar, O.D., Aguilar, I., Aiello, L., Ain, A., Ajith, P., Akutsu, T., et al.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 1538-4357. - 973:2(2024), p. 132. [10.3847/1538-4357/ad65ce]

Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo

Bini, S.;Ciani, G.;Lagabbe, P.;Leonardi, M.;Miani, A.;Perego, A.;Perreca, A.;Prodi, G. A.;
2024-01-01

Abstract

Despite the growing number of binary black hole coalescences confidently observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains challenging due to the limited availability of gravitational waveforms that include the effects of eccentricity. Here, we present observational results for a waveform-independent search sensitive to eccentric black hole coalescences, covering the third observing run (O3) of the LIGO and Virgo detectors. We identified no new high-significance candidates beyond those that have already been identified with searches focusing on quasi-circular binaries. We determine the sensitivity of our search to high-mass (total source-frame mass M > 70 Me) binaries covering eccentricities up to 0.3 at 15 Hz emitted gravitational-wave frequency, and use this to compare model predictions to search r...
2024
2
Abac, A. G.; Abbott, R.; Abe, H.; Acernese, F.; Ackley, K.; Adamcewicz, C.; Adhicary, S.; Adhikari, N.; Adhikari, R. X.; Adkins, V. K.; Adya, V. B.; A...espandi
Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo / Abac, A.G., Abbott, R., Abe, H., Acernese, F., Ackley, K., Adamcewicz, C., Adhicary, S., Adhikari, N., Adhikari, R.X., Adkins, V.K., Adya, V.B., Affeldt, C., Agarwal, D., Agathos, M., Aguiar, O.D., Aguilar, I., Aiello, L., Ain, A., Ajith, P., Akutsu, T., et al.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 1538-4357. - 973:2(2024), p. 132. [10.3847/1538-4357/ad65ce]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/437259
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