The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration (2024). Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo. Astrophysical Journal, 973(2), 1-27. Article 132. https://doi.org/10.3847/1538-4357/ad65ce

@article{7ab2411a8f2b48d882db0ade5417daa3,
title = "Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo",
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 results. Assuming all detections are indeed quasi-circular, for our fiducial population model, we place a conservative upper limit for the merger rate density of high-mass binaries with eccentricities 0 < e ≤ 0.3 at 16.9 Gpc−3 yr−1 at the 90% confidence level.",
author = "{The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration} and Adhikari, {R. X.} and Y. Bai and J. Barber and Bell, {A. S.} and Blair, {C. D.} and S. Bose and H. Cao and C. Chan and Chan, {J. C.L.} and Chan, {W. L.} and W. Chang and D. Chen and H. Chen and H. Chen and J. Chen and X. Chen and Y. Chen and Y. Chen and N. Christensen and Clark, {J. A.} and Collette, {C. G.} and L. Conti and Cullen, {T. J.} and Davis, {M. C.} and J. Ding and H. Du and H. Duval and Fan, {P. C.} and M. Gosselin and H. Guo and Y. Guo and Gupta, {N. C.} and Gupta, {S. K.} and N. Gutierrez and J. Healy and T. Hertog and P. Hu and Huang, {H. Y.} and Y. Huang and Y. Huang and Y. Huang and T. Jain and James, {A. L.} and K. Janssens and J. Jiang and Jin, {H. B.} and Jones, {D. I.} and Jones, {D. I.} and T. Kaur and Kim, {J. C.} and Kim, {M. H.} and S. Kim and Kim, {W. S.} and Kim, {Y. M.} and A. Kumar and M. Lalleman and Lee, {H. M.} and Lee, {H. M.} and K. Lee and S. Lee and Y. Lee and Li, {A. K.Y.} and Li, {K. L.} and Li, {T. G.F.} and X. Li and Y. Lin and Liu, {G. C.} and Jian Liu and Ma, {L. T.} and S. Ma and A. Malik and M. Mantovani and Martin, {R. M.} and C. Michel and B. Miller and S. Miller and Mitchell, {A. L.} and S. More and Ng, {S. W.S.} and C. Nguyen and P. Nguyen and Oliveira, {A. S.} and A. Pal and S. Pal and H. Pham and M. Pinto and Pradhan, {B. K.} and J. Qin and S. Raja and M. Ricci and Richardson, {J. W.} and Saha, {S. S.} and M. Sakellariadou and A. Sanchez and Sanchez, {E. J.} and Sanchez, {L. E.} and Sanders, {J. R.} and P. Schmidt and Schmitz, {S. J.} and Sengupta, {A. S.} and Shaikh, {M. A.} and P. Sharma and A. Singh and Singh, {M. K.} and L. Smith and Smith, {R. J.E.} and K. Soni and V. Sordini and P. Stevens and L. Sun and K. Tanaka and Tanaka, {S. J.} and Thomas, {L. M.} and M. Thomas and P. Thomas and K. Turbang and {van Dael}, M. and {Van Den Broeck}, C. and {Van de Walle}, A. and {van Dongen}, J. and {van Ranst}, Z. and Vermeulen, {S. M.} and Vincent, {E. T.} and H. Wang and Wang, {J. Z.} and Wang, {W. H.} and White, {D. D.} and Williams, {M. J.} and M. Wils and Wong, {H. T.} and C. Wu and Wu, {D. S.} and H. Wu and L. Xiao and N. Yadav and M. Yamamoto and S. Yan and Yang, {F. W.} and Yang, {L. C.} and Yang, {Y. C.} and Yang, {Y. C.} and H. Yu and J. Zhang and L. Zhang and T. Zhang and C. Zhao and Y. Zheng",
note = "Publisher Copyright: {\textcopyright} 2024. The Author(s). Published by the American Astronomical Society.",
year = "2024",
month = sep,
day = "26",
doi = "10.3847/1538-4357/ad65ce",
language = "English",
volume = "973",
pages = "1--27",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "American Astronomical Society",
number = "2",
}