XTE J1550–564

XTE J1550-564, sometimes abbreviated to J1550 and also known as V381 Normae, is a low-mass X-ray binary in the constellation Norma. It is composed of a black hole around 10 times as massive as the Sun,[2] and a star of spectral type K3III. The black hole fires out jets of matter that are thought to arise from an accretion disk, and is hence known as a microquasar.[2]

XTE J1550-564
Observation data
Epoch J2000      Equinox J2000
Constellation Norma
Right ascension 15h 50m 58.78s[1]
Declination −56° 28 35.0[1]
Apparent magnitude (V) 16.6
Other designations
V381 Normae[1]
Database references
SIMBADdata

References

  1. "V* V381 Nor". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 18 August 2015.
  2. Steiner, James F.; Reis, Rubens C.; McClintock, Jeffrey E.; Narayan, Ramesh; Remillard, Ronald A.; Orosz, Jerome A.; Gou, Lijun; Fabian, Andrew C.; Torres, Manuel A. P. (2011). "The spin of the black hole microquasar XTE J1550-564 via the continuum-fitting and Fe-line methods". Monthly Notices of the Royal Astronomical Society. 416 (2): 941–58. arXiv:1010.1013. Bibcode:2011MNRAS.416..941S. doi:10.1111/j.1365-2966.2011.19089.x. S2CID 53399981.


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