The detection of the donor star in IY UMa

2); (2) The Open University; (3) CTIO; 4); (4) Nordic Optical Telescope); Carole A. Haswell (2) ((1) University of Leicester; Daniel J. Rolfe (1; Timothy M. C. Abbott (3

arxiv: astro-ph/0204177 · v1 · submitted 2002-04-10 · 🌌 astro-ph

The detection of the donor star in IY UMa

Daniel J. Rolfe (1 , 2) , Timothy M. C. Abbott (3 , 4) , Carole A. Haswell (2) ((1) University of Leicester , (2) The Open University , (3) CTIO , (4) Nordic Optical Telescope) This is my paper

classification 🌌 astro-ph

keywords donorabsorptionstartypevelocityangstromcataclysmicconsistent

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We present the results of a search for the donor star in the high inclination SU UMa type cataclysmic variable IY UMa. We detect absorption features in the near infrared consistent with an M type dwarf donor star. Using the skew mapping technique to exploit the velocity information provided by the 8183-8194 Angstrom Na I absorption doublet, we locate the absorption at the expected donor velocity of IY UMa.

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The detection of the donor star in IY UMa

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