A Black Hole in the Superluminal Source SAX J1819.3-2525 (V4641 Sgr)

  title={A Black Hole in the Superluminal Source SAX J1819.3-2525 (V4641 Sgr)},
  author={J. Orosz and E. Kuulkers and M. V. D. Klis and J. Mcclintock and Michael R. Garcia Paul J. Callanan and C. Bailyn and R. Jain and R. Remillard},
  journal={International Journal of Std & Aids},
  • J. Orosz, E. Kuulkers, +5 authors R. Remillard
  • Published 2000
  • Medicine, Physics, Sociology
  • International Journal of Std & Aids
  • Spectroscopic observations of the fast X-ray transient and superluminal jet source SAX J1819.3-2525 (V4641 Sgr) reveal a best-fitting period of Pspect = 2.81678 ± 0.00056 days and a semiamplitude of K2 = 211.0 ± 3.1 km s-1. The optical mass function is f(M) = 2.74 ± 0.12 M☉. We find a photometric period of Pphoto = 2.81730 ± 0.00001 days using a light curve measured from photographic plates. The folded light curve resembles an ellipsoidal light curve with two maxima of roughly equal height and… CONTINUE READING
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