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Title: On the nature of superoutbursts in dwarf novae
Authors: Truss, M. R.
Murray, J. R.
Wynn, Graham A.
First Published: 2001
Publisher: Oxford University Press (OUP) on behalf of Royal Astronomical Society
Citation: Monthly Notices of the Royal Astronomical Society, 2001, 324 (1), pp. 1-5
Abstract: We present the first detailed hydrodynamic simulation of a superoutburst to incorporate the full tidal potential of a binary system. A two-dimensional smoothed particle hydrodynamics code is used to simulate a superoutburst in a binary with the parameters of the SU UMa system Z Chamaeleontis. The simulated light curves shows all the features observed in such systems. Analysis of the mass flux through the disc and the growth rate of the superhumps and disc eccentricity show that the superoutburst–superhump phenomenon is a direct result of tidal instability. No enhanced mass transfer from the secondary is required to initiate or sustain these phenomena. Comparisons of superoutbursts with normal outbursts are made and we show that the model can be reconciled with the behaviour of U Geminorum-type dwarf novae, which show no superoutbursts.
DOI Link: 10.1046/j.1365-8711.2001.04535.x
ISSN: 0035-8711
eISSN: 1365-2966
Version: Publisher Version
Status: Peer-reviewed
Type: Article
Rights: Copyright © 2001, Oxford University Press (OUP) on behalf of Royal Astronomical Society. Deposited with reference to the publisher’s open access archiving policy.
Description: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2001 Royal Astronomical Society Published by Oxford University Press [on behalf of Royal Astronomical Society]. All rights reserved.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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