Coupled long-term photometric and V/R variations in Be stars: evidence for prograde global one-armed disk oscillations.

Details Coupled long-term photometric and V/R variations in Be stars: evidence for prograde global one-armed disk oscillations. Coupled long-term photometric and V/R variations in Be stars: evidence for prograde global one-armed disk oscillations.

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...326.1167m&link_type=abstract

Astronomy and Astrophysics, v.326, p.1167-1175

Astronomy and Astrophysics

Astrophysics

18

Stars: Emission-Line, Be, Stars: Individual: V923 Aql, V1294 Aql, {Gamma} Cas, 48 Lib, Mx Pup, {Zeta} Tau

Scientific paper

We review theoretical work on global oscillations of Be star disks and summarize possible observational tests. In addition, we analyze existing records on photometric data and V/R ratio for a sample of 6 V/R variable Be stars. Five stars showed coupled long-term photometric-V/R variations. In all cases the photometric extrema coincided with times of V=R transits, the fainter state being followed by a V

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