Eccentric discs in binaries with intermediate mass ratios: Superhumps in the VY Sculptoris stars

J. R. Murray; B. Warner; D. T. Wickramasinghe

doi:10.1046/j.1365-8711.2000.03488.x

Eccentric discs in binaries with intermediate mass ratios: Superhumps in the VY Sculptoris stars

J. R. Murray^*, B. Warner, D. T. Wickramasinghe

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We investigate the role of the eccentric disc resonance in systems with mass ratios q ≳ 1/4. and demonstrate the effects that changes in the mass flux from the secondary star have upon the disc radius and structure. The addition of material with low specific angular momentum to the outer edge of a disc restricts that disc radially. Should the mass flux from the secondary be reduced, it is possible for the disc in a system with mass ratio as large as 1/3 to expand to the 3:1 eccentric inner Lindblad resonance and for superhumps to be excited.

Original language	English
Pages (from-to)	707-712
Number of pages	6
Journal	Monthly Notices of the Royal Astronomical Society
Volume	315
Issue number	4
DOIs	https://doi.org/10.1046/j.1365-8711.2000.03488.x
Publication status	Published - 11 Jul 2000

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title = "Eccentric discs in binaries with intermediate mass ratios: Superhumps in the VY Sculptoris stars",

abstract = "We investigate the role of the eccentric disc resonance in systems with mass ratios q ≳ 1/4. and demonstrate the effects that changes in the mass flux from the secondary star have upon the disc radius and structure. The addition of material with low specific angular momentum to the outer edge of a disc restricts that disc radially. Should the mass flux from the secondary be reduced, it is possible for the disc in a system with mass ratio as large as 1/3 to expand to the 3:1 eccentric inner Lindblad resonance and for superhumps to be excited.",

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T2 - Superhumps in the VY Sculptoris stars

AU - Murray, J. R.

AU - Warner, B.

AU - Wickramasinghe, D. T.

PY - 2000/7/11

Y1 - 2000/7/11

N2 - We investigate the role of the eccentric disc resonance in systems with mass ratios q ≳ 1/4. and demonstrate the effects that changes in the mass flux from the secondary star have upon the disc radius and structure. The addition of material with low specific angular momentum to the outer edge of a disc restricts that disc radially. Should the mass flux from the secondary be reduced, it is possible for the disc in a system with mass ratio as large as 1/3 to expand to the 3:1 eccentric inner Lindblad resonance and for superhumps to be excited.

AB - We investigate the role of the eccentric disc resonance in systems with mass ratios q ≳ 1/4. and demonstrate the effects that changes in the mass flux from the secondary star have upon the disc radius and structure. The addition of material with low specific angular momentum to the outer edge of a disc restricts that disc radially. Should the mass flux from the secondary be reduced, it is possible for the disc in a system with mass ratio as large as 1/3 to expand to the 3:1 eccentric inner Lindblad resonance and for superhumps to be excited.

KW - Accretion, accretion discs

KW - Binaries: close

KW - Hydrodynamics

KW - Instabilities

KW - Methods: numerical

KW - Novae, cataclysmic variables

UR - http://www.scopus.com/inward/record.url?scp=0000709099&partnerID=8YFLogxK

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DO - 10.1046/j.1365-8711.2000.03488.x

M3 - Article

SN - 0035-8711

VL - 315

SP - 707

EP - 712

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Eccentric discs in binaries with intermediate mass ratios: Superhumps in the VY Sculptoris stars

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