Pulsations of B stars: A review of observations and theories

Conference · Wed Jan 01 04:00:00 EST 1986

DOI:https://doi.org/10.1007/3-540-17668-3_169· OSTI ID:6846028

Cox, A N

The observational and theoretical status are discussed for several classes of variable B stars. The older classes now seem to be better understood in terms of those stars that probably have at least one radial mode and those that have only nonradial modes. The former are the ..beta.. Cephei variables, and the latter are the slowly rotating 53 Persei and the rapidly rotating zeta Ophiuchi variables. It seems that in this last class there are also some Be stars that show nonradial pulsations from the variations of the line shapes and their light. Among the nonradial pulsators, we must also include the supergiants which show pulsations with very short lifetimes. A review of the present observational and theoretical problems is given. The most persistent problem of the cause for the pulsations is briefly discussed, and many proposed mechanisms plus some new thoughts are presented. 57 refs., 4 figs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6846028
• Report Number(s): LA-UR-86-4110; CONF-8608130-8; ON: DE87003717
• 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
ALKALINE EARTH METALS
BERYLLIUM
ELEMENTS
GIANT STARS
MATHEMATICAL MODELS
METALS
MOTION
OSCILLATION MODES
ROTATION
STAR MODELS
STARS
SUPERGIANT STARS
VARIABLE STARS