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arxiv: astro-ph/0009329 · v1 · submitted 2000-09-20 · 🌌 astro-ph

Doppler Tomography of Dwarf Nova IY UMa during Quiescence

Daniel J. Rolfe (1) , Timothy M.C. Abbott (2) , Carole A. Haswell (1) ((1) The Open University , (2) Nordic Optical Telescope) This is my paper
classification 🌌 astro-ph
keywords regiondiscdoppleremissionpropertiestomographyaccretionallow
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Quiescent Doppler tomography of the newly discovered deeply-eclipsing SU UMa system IY UMa reveals properties of the region where the accretion stream from the donor impacts the edge of the disc. A very strong bright spot is produced and the Keplerian disc emission in the impact region is disrupted or obscured. The differing properties of Halpha, Hbeta and He I emission will allow physical parameters of the converging flow region to be studied.

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