Doppler Tomography of Dwarf Nova IY UMa during Quiescence

Details Doppler Tomography of Dwarf Nova IY UMa during Quiescence Doppler Tomography of Dwarf Nova IY UMa during Quiescence

2000-09-20

arxiv.org/abs/astro-ph/0009329v1

Astronomy and Astrophysics

Astrophysics

6 pages, 5 figures. To appear in Proceedings of Astro-Tomography Workshop, Brussels, July 2000, Eds. H. Boffin, D. Steeghs, Sp

Scientific paper

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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