The detection of the donor star in IY UMa

Abstract

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.

5 pages, 4 figures, accepted for publication in MNRAS

References in corpus (1)

• Late superhumps and the stream-disc impact in IY UMa

Cited by in corpus (6)

• Variable Star Network: World Center for Transient Object Astronomy and Variable Stars
• A spectroscopic search for faint secondaries in cataclysmic variables
• High-speed energy-resolved STJ photometry of the eclipsing dwarf nova IY UMa
• Constraining modified gravity from tidal phenomena in binary stars
• A stellar constraint on Eddington-inspired Born-Infeld gravity from cataclysmic variable binaries
• Multi-epoch Spectroscopy of IY UMa: Quiescence, Rise, Normal Outburst & Superoutburst