HST/STIS spectroscopy of the exposed white dwarf in the short-period dwarf nova EK TrA
- B. T. Gänsicke
- P. Szkody
- E. M. Sion
- D. W. Hoard
- S. Howell
- F. H. Cheng
- I. Hubeny
DOIAbstract
We present high resolution Hubble Space Telescope ultraviolet spectroscopy of the dwarf nova EK TrA obtained in deep quiescence. The Space Telescope Imaging Spectrograph data reveal the broad ${\rm Ly\alpha}$ absorption profile typical of a moderately cool white dwarf, overlayed by numerous broad emission lines of He, C, N, and Si and by a number of narrow absorption lines, mainly of C
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