Langbahn Team – Weltmeisterschaft

XTE J1650−500

XTE J1650-500

Artist's impression of XTE J1650−500
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 16h 50m 00.98s[1]
Declination −49° 57′ 43.6″[1]
Characteristics
Spectral type K2V[1]
Astrometry
Distance3300±700[2] pc
Details
Black hole
Mass9.7±1.6[2] M☉
Other designations
INTREF 720
Database references
SIMBADdata
The location of XTE J1650−500 (circled in red)

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,[3] which would have been the smallest found for any black hole; smaller than GRO 1655−40, the then known smallest of 6.3 M☉.[4] However, this claim was subsequently retracted;[2] the more likely mass is 5–10 solar masses.

The binary period of the black hole and its companion is 0.32 days.[5]

See also

References

  1. ^ a b c "XTE J1650-500". SIMBAD. Centre de données astronomiques de Strasbourg.
  2. ^ a b c Determination of Black Hole Masses in Galactic Black Hole Binaries Using Scaling of Spectral and Variability Characteristics Shaposhnikov, Nickolai; Titarchuk, Lev; The Astrophysical Journal, Volume 699, Issue 1, pp. 453-468 (2009) doi:10.1088/0004-637X/699/1/453 Pdf
  3. ^ Smallest, lightest black hole identified Technology & science - Space - Space.com By Andrea Thompson, updated 4/1/2008 4:32:08 PM ET
  4. ^ Andrea Thompson (1 April 2008). "Smallest Black Hole Found". Space.com.
  5. ^ Orosz, J.A. et al. (2004) ApJ 616,376-382.
Quelle: http://en.wikipedia.org/wiki/XTE_J1650%E2%88%92500