The detection of the donor star in IY UMa

Details The detection of the donor star in IY UMa The detection of the donor star in IY UMa

2002-04-10

arxiv.org/abs/astro-ph/0204177v1

Mon.Not.Roy.Astron.Soc. 334 (2002) 699

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2002.05563.x

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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