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Detection of the Secondary Star in X1822–371

Published online by Cambridge University Press:  12 April 2016

E. T. Harlaftis
Affiliation:
School of Physics & Astronomy, University of St. Andrews, St. Andrews KY16 9SS, UK
P. A. Charles
Affiliation:
Astrophysics, Department of Physics, University of Oxford, Keble Rd, Oxford OX1 3RH, UK
K. Horne
Affiliation:
School of Physics & Astronomy, University of St. Andrews, St. Andrews KY16 9SS, UK

Abstract

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We have detected He I absorption from the companion star to X1822–371 and find a lower limit to its K–velocity of 230±50km s−1. We interpret the He I as arising on the X-ray heated inner face of the companion star.

Type
X-Ray Binaries
Copyright
Copyright © Kluwer 1996

References

Cowley, A., et al. 1982, Ap. J., 255, 596 Google Scholar
Hellier, C., Mason, K.O., 1989, MNRAS, 239, 715 Google Scholar