Memory remains undetected: Updates from the second LIGO/Virgo gravitational-wave transient catalog

Moritz Hübner, Paul Lasky, Eric Thrane

Research output: Contribution to journalArticleResearchpeer-review

43 Citations (Scopus)

Abstract

The LIGO and Virgo observatories have reported 39 new gravitational-wave detections during the first part of the third observation run, bringing the total to 50. Most of these new detections are consistent with binary black-hole coalescences, making them suitable targets to search for gravitational-wave memory, a nonlinear effect of general relativity. We extend a method developed in previous publications to analyze these events to determine a Bayes factor comparing the memory hypothesis to the no-memory hypothesis. Specifically, we calculate Bayes factors using two waveform models with higher-order modes that allow us to analyze events with extreme mass ratios and precessing spins, both of which have not been possible before. Depending on the waveform model, we find a combined lnBFmem=0.024 or lnBFmem=0.049 in favor of memory. This result is consistent with recent predictions that indicate O(2000) binary black-hole detections will be required to confidently establish the presence or absence of memory.

Original languageEnglish
Article number023004
Number of pages7
JournalPhysical Review D
Volume104
Issue number2
DOIs
Publication statusPublished - 15 Jul 2021
  • Putting Einstein to the Test: Probing Gravity with Gravitational Waves

    Lasky, P. (Primary Chief Investigator (PCI))

    1/05/1831/12/20

    Project: Research

  • ARC Centre of Excellence for Gravitational Wave Discovery

    Bailes, M. (Primary Chief Investigator (PCI)), McClelland, D. E. (Chief Investigator (CI)), Levin, Y. (Chief Investigator (CI)), Blair, D. G. (Chief Investigator (CI)), Scott, S. (Chief Investigator (CI)), Ottaway, D. J. (Chief Investigator (CI)), Melatos, A. (Chief Investigator (CI)), Veitch, P. J. (Chief Investigator (CI)), Wen, L. (Chief Investigator (CI)), Shaddock, D. A. (Chief Investigator (CI)), Slagmolen, B. J. J. (Chief Investigator (CI)), Zhao, C. (Chief Investigator (CI)), Evans, R. J. (Chief Investigator (CI)), Ju, L. (Chief Investigator (CI)), Galloway, D. (Chief Investigator (CI)), Thrane, E. (Chief Investigator (CI)), Hurley, J. R. (Chief Investigator (CI)), Coward, D. M. (Chief Investigator (CI)), Cooke, J. (Chief Investigator (CI)), Couch, W. (Partner Investigator (PI)), Hobbs, G. (Partner Investigator (PI)), Reitze, D. (Partner Investigator (PI)), Rowan, S. (Partner Investigator (PI)), Cai, R. (Partner Investigator (PI)), Adhikari, R. X. (Partner Investigator (PI)), Danzmann, K. (Partner Investigator (PI)), Mavalvala, N. (Partner Investigator (PI)), Kulkarni, S. R. (Partner Investigator (PI)), Kramer, M. (Partner Investigator (PI)), Branchesi, M. (Partner Investigator (PI)), Gehrels, N. (Partner Investigator (PI)), Weinstein, A. J. R. (Partner Investigator (PI)), Steeghs, D. (Partner Investigator (PI)), Bock, D. (Partner Investigator (PI)) & Lasky, P. (Chief Investigator (CI))

    Monash University – Internal University Contribution, Monash University – Internal Department Contribution

    1/01/1731/03/24

    Project: Research

Cite this