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The May 1985 Superoutburst of OY Carinae: I. Structure of the Outer Disk from Optical and IR Observations

  • T. Naylor (a1), J. Bailey (a2), F.M. Bateson (a3), G. Berriman (a4), P.A. Charles (a1), I.M. Coulson (a5), A.R. Hyland (a6), K. Reinsch (a7), B. Warner (a8) and P.A. Whitelock (a5)...

Abstract

We present optical and IR observations of the dwarf nova OY Car during the May 1985 superoutburst. From them we find that the superhump has a temperature of ~8000K and an area of order half the size of the red dwarf or accretion disk. We also compare the behaviour during two simultaneous optical/IR observations. Whilst the light curves in the two pass bands are similar during one observation, in the other observation they show marked differences that may be due to a cool region in the outer disk.

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Copyright

References

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Berriman, G. 1985. Mon. Not. R. astr. Soc. 210 223
Cook, M.C. 1985. Mon. Not R. astr. Soc. 215 211.
Lub, J. and Pel, J.W. 1977. Astron. Astrophys. 54 137.
Vogt, N. 1982. Astrophys. J. 252 653.
Warner, B. 1985. Interacting Binaries pp 367392. ed. Eggleton, P.P. and Pringle, J.E. D. Reidel, Dordrect, Holland.
Whitehurst, R., Bath, G.T. and Charles, P.A. 1984. Nature 309 768.

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