XTE J1650−500 is a binary system containing a stellar-mass black hole candidate and 2000–2001 transient binary X-ray source located in the constellation Ara. In 2008, it was claimed that this black hole had a mass of 3.8±0.5 solar masses,[1] which would have been the smallest found for any black hole; smaller than GRO 1655−40, the then known smallest of 6.3 .[2] However, this claim was subsequently retracted;[3] the more likely mass is 5–10 solar masses.

The binary period of the black hole and its companion is 0.32 days.[4]

See also

References

  1. ^ Thompson, Andrea (1 April 2008). "Smallest, lightest black hole ever is identified". NBC News
  2. ^ Thompson, Andrea (1 April 2008). "Smallest Black Hole Found". Space.com
  3. ^ Shaposhnikov, Nickolai & Titarchuk, Lev (July 2009). "Determination of Black Hole Masses in Galactic Black Hole Binaries Using Scaling of Spectral and Variability Characteristics". The Astrophysical Journal. 699 (1): 453–468. arXiv:0902.2852. Bibcode:2009ApJ...699..453S. doi:10.1088/0004-637X/699/1/453. ISSN 0004-637X
  4. ^ Orosz, Jerome A.; McClintock, Jeffrey E.; Remillard, Ronald A.; Corbel, Stephane (20 November 2004). "Orbital Parameters for the Black Hole Binary XTE J1650−500". The Astrophysical Journal. 616 (1): 376–382. arXiv:astro-ph/0404343. Bibcode:2004ApJ...616..376O. doi:10.1086/424892. ISSN 0004-637X