Wind Mass-loss Rates of Stripped Stars Inferred from Cygnus X-1
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Open access
Authors
Neijssel, C.J.
Vinciguerra, S.
Vigna-Gómez, A.
Hirai, R.
Miller-Jones, James
Bahramian, Arash
Maccarone, T.J.
Mandel, I.
Date
2021Type
Journal Article
Metadata
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Neijssel, C.J. and Vinciguerra, S. and Vigna-Gómez, A. and Hirai, R. and Miller-Jones, J.C.A. and Bahramian, A. and Maccarone, T.J. et al. 2021. Wind Mass-loss Rates of Stripped Stars Inferred from Cygnus X-1. Astrophysical Journal. 908 (2): ARTN 118.
Source Title
Astrophysical Journal
ISSN
Faculty
Faculty of Science and Engineering
School
School of Elec Eng, Comp and Math Sci (EECMS)
Funding and Sponsorship
Collection
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.