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Multiwavelength observations of the Be-star / X-ray binary EXO2030+375 during outburst

Norton, A. J.; Coe, M. J.; Everall, C.; Roche, P.; Bildsten, L.; Chakrabarty, D.; Prince, T. A.; Stollberg, M. T. and Wilson, R. B. (1994). Multiwavelength observations of the Be-star / X-ray binary EXO2030+375 during outburst. In: Pulsation, Rotation and Mass Loss in Early-Type Stars, International Astronomical Union, Kluwer Academic Publishers; Dordrecht, pp. 206–207.

URL: http://link.springer.com/chapter/10.1007/978-94-01...
DOI (Digital Object Identifier) Link: https://doi.org/10.1007/978-94-011-1030-3_53
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Abstract

EXO2030+375 consists of a neutron star in an eccentric 46 day orbit around a 20th magnitude Be-star companion (Coe et al., 1988; Parmar et al., 1989; Stollberg et al., 1993). The Be-star is thought to be surrounded by a shell/disc of material which is responsible for the infrared excess and Balmer emission lines which are characteristic of Be-stars in general. At periastron, the neutron star passes through this circumstellar material, giving rise to enhanced accretion onto the neutron star surface. As a result of this, the X-ray emission (pulsed at the neutron star spin period of 41.8s) increases dramatically, so producing the transient, outburst behaviour which is commonly seen in Be-star / X-ray binaries.

Item Type: Conference or Workshop Item
Copyright Holders: 1994 International Astronomical Union
ISBN: 0-7923-3045-5, 978-0-7923-3045-5
Extra Information: Editors: Balona L.A., Henrichs H.F., Le Contel J.M.
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 40863
Depositing User: Andrew Norton
Date Deposited: 15 Sep 2014 08:53
Last Modified: 07 Dec 2018 10:25
URI: http://oro.open.ac.uk/id/eprint/40863
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