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Optical and infrared modulation in the Be-star/X-ray source LSI+61o303
Krishna M.V. Apparao
Received 20 October 1998 / Accepted 18 February 1999
The Be star X-ray source LSI+61o303 is found to show optical and infrared modulation with its orbital period. We show that this modulation is due to radiation from a shock produced by the companion to the Be star, while it passes through the gas envelope of the Be star in its binary motion.
Key words: stars: emission-line, Be stars: individual: LSI+61O 303 infrared: stars X-rays: stars
© European Southern Observatory (ESO) 1999
Online publication: August 13, 199