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

Neijssel, C. J., Vinciguerra, S., Vigna-Gomez, A., Hirai, R., Miller-Jones, J. C. A., Bahramian, A., et al. (2021). Wind mass-loss rates of stripped stars inferred from Cygnus X-1. The Astrophysical Journal, 908(2): 118. doi:10.3847/1538-4357/abde4a.

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Neijssel, Coenraad J., Author
Vinciguerra, Serena1, Author           
Vigna-Gomez, Alejandro, Author
Hirai, Ryosuke, Author
Miller-Jones, James C. A., Author
Bahramian, Arash, Author
Maccarone, Thomas J., Author
Mandel, Ilya, Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: Astrophysics, Solar and Stellar Astrophysics, astro-ph.SR, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 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.

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 Dates: 2021-02-172021
 Publication Status: Issued
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 Identifiers: arXiv: 2102.09092
DOI: 10.3847/1538-4357/abde4a
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Title: The Astrophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 908 (2) Sequence Number: 118 Start / End Page: - Identifier: -