The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
THE MASS OF THE BLACK HOLE IN CYGNUS X-1
Open accessAbstract
Cygnus X-1 is a binary star system that is comprised of a black hole and a massive giant companion star in a tight orbit. Building on our accurate distance measurement reported in the preceding paper, we first determine the radius of the companion star, thereby constraining the scale of the binary system. To obtain a full dynamical model of the binary, we use an extensive collection of optical photometric and spectroscopic data taken from the literature. By using all of the available observational constraints, we show that the orbit is slightly eccentric (both the radial velocity and photometric data independently confirm this result) and that the companion star rotates roughly 1.4 times its pseudosynchronous value. We find a black hole mass of M = 14.8 ± 1.0 M ☉ , a companion mass of M opt = 19.2 ± 1.9 M ☉ , and the angle of inclination of the orbital plane to our line of sight of i = 27.1 ± 0.8 deg.
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Cites
The Two Micron All Sky Survey (2MASS)
Skrutskie, M. F., Cutri, R. M., Stiening, R., Weinberg, M. D., Schneider, S., Carpenter, J. M., Beichman, C., Capps, R., Chester, T., Elias, J., et al. (2006) · The Astronomical Journal · doi:10.1086/498708 · Cited by 12,019
Cited by
DOUBLE COMPACT OBJECTS. I. THE SIGNIFICANCE OF THE COMMON ENVELOPE ON MERGER RATES
Dominik, M., Belczynski, K., Fryer, C., Holz, D. E., Berti, E., Bulik, T., Mandel, I., & O'Shaughnessy, R. (2012) · The Astrophysical Journal · doi:10.1088/0004-637x/759/1/52 · Cited by 727
Observation of Gravitational Waves from Two Neutron Star-Black Hole Coalescences
Abbott, R., Abbott, T. D., Abraham, S., Acernese, F., Ackley, K., Adams, A., Adams, C., Adhikari, R. X., Adya, V. B., Affeldt, C., et al. (2021) · Institutional Repository of Leibniz Universität Hannover (Leibniz Universität Hannover) · doi:10.15488/11385 · Cited by 609
The Evolution of Compact Binary Star Systems
Postnov, K. A., & Yungelson, L. R. (2014) · Living Reviews in Relativity · doi:10.12942/lrr-2014-3 · Cited by 486
BlackCAT: A catalogue of stellar-mass black holes in X-ray transients
Corral-Santana, J. M., Casares, J., Muñoz-Darias, T., Bauer, F. E., Martínez-Pais, I. G., & Russell, D. M. (2016) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201527130 · Cited by 424
Black Hole Spin via Continuum Fitting and the Role of Spin in Powering Transient Jets
McClintock, J. E., Narayan, R., & Steiner, J. F. (2014) · Space Science Reviews · doi:10.1007/s11214-013-0003-9 · Cited by 332
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Metadata
- Authors
- Orosz, J. A., McClintock, J. E., Aufdenberg, J. P., Remillard, R. A., Reid, M. J., Narayan, R., & Gou, L.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2011-11-09
- Volume
- 742
- Issue
- 2
- Pages
- 84
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2096503596
- Cited by
- 359
- References
- 1
- FWCI
- 12.10
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Orosz, J. A., McClintock, J. E., Aufdenberg, J. P., Remillard, R. A., Reid, M. J., Narayan, R., & Gou, L. (2011). THE MASS OF THE BLACK HOLE IN CYGNUS X-1. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/742/2/84
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