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Wind mass-loss rates of stripped stars inferred from Cygnus X-1

  • Coenraad J. Neijssel
  • , Serena Vinciguerra
  • , Alejandro Vigna-Gómez
  • , Ryosuke Hirai
  • , James C.A. Miller-Jones
  • , Arash Bahramian
  • , Thomas J. Maccarone
  • , Ilya Mandel

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

Recent observations of the high-mass X-ray binary Cygnus X-1 have shown that both the companion star (41 solar masses) and the black hole (21 solar masses) are more massive than previously estimated. Furthermore, the black hole appears to be nearly maximally spinning. Here, we present a possible formation channel for the Cygnus X-1 system that matches the observed system properties. In this formation channel, we find that the orbital parameters of Cygnus X-1, combined with the observed metallicity of the companion, imply a significant reduction in mass loss through winds relative to commonly used prescriptions for stripped stars.

Original languageEnglish
Article number118
Number of pages9
JournalThe Astrophysical Journal
Volume908
Issue number2
DOIs
Publication statusPublished - 20 Feb 2021

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  • Shining gravitational waves on binary astrophysics

    Mandel, I. (Primary Chief Investigator (PCI))

    ARC - Australian Research Council

    1/04/20 → 18/12/24

    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

    1/01/17 → 31/03/24

    Project: Research

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