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

Published online by Cambridge University Press:  12 April 2016

T. Naylor ,
J. Bailey ,
F.M. Bateson ,
G. Berriman ,
P.A. Charles ,
I.M. Coulson ,
A.R. Hyland ,
K. Reinsch ,
B. Warner  and
P.A. Whitelock
T. Naylor
Affiliation:
Department of Astrophysics, Oxford, U.K.
J. Bailey
Affiliation:
Anglo-Australian Observatory, Epping, Australia
F.M. Bateson
Affiliation:
Astronomical Research Limited, Greerton, New Zealand
G. Berriman
Affiliation:
Steward Observatory, University of Arizona, U.S.A.
P.A. Charles
Affiliation:
Department of Astrophysics, Oxford, U.K.
I.M. Coulson
Affiliation:
South African Astronomical Observatory, South Africa
A.R. Hyland
Affiliation:
Mount Stromlo and Siding Spring Observatories, Australia
K. Reinsch
Affiliation:
Technische Universität Berlin, F.R.G.
B. Warner
Affiliation:
University of Cape Town, South Africa
P.A. Whitelock
Affiliation:
South African Astronomical Observatory, South Africa

Abstract

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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.

Type
IV. Accretion Disks
Information
International Astronomical Union Colloquium , Volume 93: Cataclysmic Variables: Recent Multi-Frequency Observations and Theoretical Developments , 1987 , pp. 365 - 369
Copyright
Copyright © Reidel 1987

References

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