Modulated mass-transfer model for superhumps in SU Ursae Majoris stars

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166974· OSTI ID:6401216

Mineshige, S

The response of a circular accretion disk to rapid modulation of the mass-transfer rate into the disk is explored in order to model superhumps in SU UMa stars. It is proposed that periodically enhanced flow may disrupt or heat up the outer disk and produce the dips noted just before the superhump peaks. The elliptical accretion-disk model with extended vertical disk structure can account for the observed characteristics of superhumps in these stars. 52 references.

• Research Organization: Texas Univ., Austin (USA); Max-Planck-Institut fuer Physik und Astrophysik, Garching (Germany, F.R.)
• OSTI ID: 6401216
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 335; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCRETION DISKS
BINARY STARS
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ERUPTIVE VARIABLE STARS
MASS TRANSFER
MATHEMATICAL MODELS
NOVAE
STAR ACCRETION
STAR EVOLUTION
STAR MODELS
STARS
TEMPERATURE DISTRIBUTION
VARIABLE STARS