Astronomy:XTE J1650−500
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Short description: X-ray binary star in the constellation Ara
Coordinates: 
16h 50m 00.98s, −49° 57′ 43.6″
250px Artist's impression of XTE J1650−500 | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Ara[1] |
| Right ascension | 16h 50m 00.98s[2] |
| Declination | −49° 57′ 43.6″[2] |
| Characteristics | |
| Spectral type | K2V[2] |
| Astrometry | |
| Distance | 3300±700[3] pc |
| Details | |
| Black hole | |
| Mass | 9.7±1.6[3] M☉ |
| Other designations | |
INTREF 720 | |
| Database references | |
| SIMBAD | data |
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,[4] which would have been the smallest found for any black hole; smaller than GRO 1655−40, the then known smallest of 6.3 M☉.[5] 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.[6]
See also
References
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R Constellation record for this object at VizieR.
- ↑ 2.0 2.1 2.2 "XTE J1650-500". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=XTE+J1650-500.
- ↑ 3.0 3.1 3.2 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. doi:10.1088/0004-637X/699/1/453. ISSN 0004-637X. Bibcode: 2009ApJ...699..453S.
- ↑ Thompson, Andrea (1 April 2008). "Smallest, lightest black hole ever is identified". https://www.nbcnews.com/id/wbna23904291.
- ↑ Thompson, Andrea (1 April 2008). "Smallest Black Hole Found". Space.com. http://www.space.com/5191-smallest-black-hole.html.
- ↑ Orosz, Jerome A.; McClintock, Jeffrey E.; Remillard, Ronald A.; Corbel, Stephane (20 November 2004). "Orbital Parameters for the Black Hole Binary XTE J1650−500" (in en). The Astrophysical Journal 616 (1): 376–382. doi:10.1086/424892. ISSN 0004-637X. Bibcode: 2004ApJ...616..376O.
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