Periodic Variability of Be Stars: Nonradial Pulsation or Rotational Modulation?
- 1 January 1994
- journal article
- Published by Cambridge University Press (CUP) in Symposium - International Astronomical Union
- Vol. 162, 311-324
- https://doi.org/10.1017/s0074180900215180
Abstract
A large fraction of Be stars show periodic light and line profile variations with a timescale of about one day. The mechanism which causes these periodic variations has been attributed to nonradial pulsation (NRP) or rotational modulation (RM). The authors present arguments supporting the two opposing points of view with the purpose of stimulating subsequent discussion by the Symposium participants.Keywords
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