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A relativistic jet from Cygnus X-1 in the low/hard X-ray state
Open accessAbstract
We present the detection of a radio-emitting jet from the black hole candidate and X-ray binary source Cygnus X-1. Evidence of a bright core with a slightly extended structure was found on milliarcsecond resolution observations with the Very Long Baseline Array (VLBA) at 15.4 GHz. Later observations with the VLBA [and including the phased-up, Very Large Array (VLA)] at 8.4 GHz show an extended jet-like feature extending to ∼ 15 mas from a core region, with an opening angle of < 2°. In addition, lower resolution MERLIN observations at 5 GHz show that the source has < 10 per cent linear polarization. The source was in the low/hard X-ray state during the observations, and the results confirm the existence of persistent radio emission from an unresolved core and a variable, relativistic (> 0.6c) jet during this state.
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Cited by
Cygnus X-1 contains a 21–solar mass black hole—Implications for massive star winds
Miller-Jones, J. C. A., Bahramian, A., Orosz, J. A., Mandel, I., Gou, L., Maccarone, T. J., Neijssel, C. J., Zhao, X., Ziółkowski, J., Reid, M. J., et al. (2021) · Science · doi:10.1126/science.abb3363 · Cited by 284
Gamma-ray binaries: pulsars in disguise?
Dubus, G. (2006) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20054779 · Cited by 270
STELLAR-MASS BLACK HOLE SPIN CONSTRAINTS FROM DISK REFLECTION AND CONTINUUM MODELING
Miller, J. M., Reynolds, C. S., Fabian, A. C., Miniutti, G., & Gallo, L. C. (2009) · The Astrophysical Journal · doi:10.1088/0004-637x/697/1/900 · Cited by 253
Kwan, T. M., Dai, L., & Tchekhovskoy, A. (2023) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/acc334 · Cited by 22
Metadata
- Authors
- Stirling, A. M., Spencer, R. E., de La Force, C. J., Garrett, M. A., Fender, R. P., & Ogley, R. N.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2001-11-11
- Volume
- 327
- Issue
- 4
- Pages
- 1273-1278
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2009154954
- Cited by
- 387
- References
- 0
- FWCI
- 11.40
- Type
- journal article
- Language
- en
- Open access
- bronze
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- The paper
- Stirling, A. M., Spencer, R. E., de La Force, C. J., Garrett, M. A., Fender, R. P., & Ogley, R. N. (2001). A relativistic jet from Cygnus X-1 in the low/hard X-ray state. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1046/j.1365-8711.2001.04821.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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