• DOI:10.1093/mnras/stac3140
• Corpus ID: 252280417

A Sun-like star orbiting a black hole

@article{ElBadry2022ASS,
  title={A Sun-like star orbiting a black hole},
  author={Kareem El-Badry and Hans–Walter Rix and Eliot Quataert and Andrew W. Howard and Howard T. Isaacson and Jim Fuller and Keith Hawkins and Katelyn Breivik and Kaze Wong and Antonio C. Rodriguez and Charlie Conroy and Sahar Shahaf and Tsevi Mazeh and Fr{\'e}d{\'e}ric Arenou and Kevin B. Burdge and Dolev Bashi and Simchon Faigler and Daniel R. Weisz and Rhys Seeburger and Silvia Almada Monter and Jennifer Wojno},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2022}
}

• K. El-Badry, H. Rix, +18 authors J. Wojno
• Published 14 September 2022
• Physics, Geology
• Monthly Notices of the Royal Astronomical Society

We report discovery of a bright, nearby ($G = 13.8;\, \, d = 480\, \rm pc$) Sun-like star orbiting a dark object. We identified the system as a black hole candidate via its astrometric orbital solution from the Gaia mission. Radial velocities validated and refined the Gaia solution, and spectroscopy ruled out significant light contributions from another star. Joint modeling of radial velocities and astrometry constrains the companion mass to M2 = 9.62 ± 0.18 M⊙. The spectroscopic orbit alone…