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Paper: HST STIS spectroscopy of VW Hydri during early quiescence following a superoutburst
Volume: 261, The Physics of Cataclysmic Variables and Related Objects
Page: 69
Authors: Sion, E. M.; Cheng, F.-H.; Szkody, P.; Gänsicke, B. T.; Sparks, W. M.; Hubeny, I.
Abstract: We have obtained two Hubble Space Telescope STIS spectra of the SU UMa-type dwarf nova VW Hydri at two points in early quiescence following a superoutburst. Multi-spectral component model fitting to the data reveals a 23 000 K heated white dwarf with chemical abundances indicative of nucleosynthetic processing (supporting a link between dwarf novae and classical novae), and a rotation of 400 km/s. Our best-fit models result when a rapidly spinning accretion belt with solar composition is present in addition to the cooler, more slowly rotating photosphere.
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