The 1996 dwarf nova outburst of the intermediate polar GK Persei

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dc.creatorMorales-Rueda, L.
dc.creatorStill, M. D.
dc.creatorRoche, P.
dc.date1999-01-25
dc.date.accessioned2026-07-25T13:28:27Z
dc.descriptionGK Persei is an intermediate polar that exhibits a dwarf nova outburst approximately every 1000 days. During previous outbursts the system has displayed kilo-second quasi-periodic oscillations (QPOs) in X-ray emission. These oscillations are unique in that they are an order of magnitude longer than QPOs usually observed in disc-fed cataclysmic variables. We have detected the optical counterpart of these QPOs in spectrophotometry collected during the 1996 outburst. The presence of these QPOs in Doppler-broadened emission lines originating from the highly-supersonic accretion flow enables us to place useful constraints on the location of the QPO source and its formation mechanism.
dc.description6 pages, 2 figures. To appear in ASP Conf. Ser. Vol. 157; LaTeX, uses paspconf.sty
dc.identifierhttps://arxiv.org/abs/astro-ph/9901344
dc.identifierhttp://arxiv.org/abs/astro-ph/9901344
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/17582
dc.subjectAstrophysics
dc.titleThe 1996 dwarf nova outburst of the intermediate polar GK Persei
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