Astron. Astrophys. 337, 721-722 (1998)

Research Note

Orbital period-H correlation in Be star/X-ray binaries?

Krishna M.V. Apparao

Department of Physics, University of Bombay, Bombay 400098, India

Received 29 August 1997 / Accepted 20 April 1998

Abstract

Reig, Fabregat & Coe (1997) plotted the equivalent width of H emission against the orbital period for several Be star/X-ray binary systems, and find a correlation. If instead of the equivalent width, which is a relative quantity, the luminosity of H emission, which is an absolute quantity, is used the correlation is not found.

Key words: stars: emission-line, Be X-rays: stars

Online publication: August 27, 1998

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