The 1985 May superoutburst of the dwarf nova OY Carinae. I - Optical and infrared photometry

Astronomy and Astrophysics – Astronomy

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Dwarf Novae, Eclipsing Binary Stars, Infrared Astronomy, Stellar Mass Ejection, Stellar Spectrophotometry, Visible Spectrum, Light Curve, Stellar Temperature, Vertical Distribution

Scientific paper

The authors present optical and infrared photometry from the 1985 May superoutburst of OY Carinae, and estimate the temperature and area of the superhump region to be approximately 8000K and ≡1020cm2 respectively. There is evidence for extended vertical structure in the disc, possibly analogous to that which causes X-ray dips seen in low mass X-ray binaries. The authors show that the size of the O-C variations of the eclipse timings are significantly smaller than previously thought.

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