Difference Frequencies of Non-radial Pulsation Modes and Repetitive Outbursts in Classical Be Stars
Abstract
Space photometry has revealed rich pulsation spectra in classical Be stars. Often frequency pairs can be found that differ by nearly the frequency of a third genuine stellar variability. The lowest currently known of these so-called difference (or Δ) frequencies reach 0.03 c/d, which is the upper limit of outburst frequencies. The potential of such slow variations for pulsation-assisted mass loss is discussed.
- Publication:
-
The B[e] Phenomenon: Forty Years of Studies
- Pub Date:
- February 2017
- DOI:
- 10.48550/arXiv.1610.02200
- arXiv:
- arXiv:1610.02200
- Bibcode:
- 2017ASPC..508...93B
- Keywords:
-
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 6 pages, 0 figures, Proc. 'THE B[e] PHENOMENOM: FORTY YEARS OF STUDIES', Prgaue