Is macroturbulence in OB Sgs related to pulsations?

Bibcode
2011IAUS..272..549S
DOI
10.1017/S1743921311011410
Simón-Díaz, S.; Herrero, A.; Uytterhoeven, Katrien; Castro, N.; Aerts, Conny; Puls, Joachim
Bibliographical reference

Active OB stars: structure, evolution, mass loss, and critical limits, Proceedings of the International Astronomical Union, IAU Symposium, Volume 272, p. 549-550

Advertised on:
7
2011
Number of authors
6
IAC number of authors
3
Citations
3
Refereed citations
1
Description
As part of a long term observational project, we are investigating the macroturbulent broadening in O and B supergiants (Sgs) and its possible connection with spectroscopic variability phenomena and stellar oscillations. We present the first results of our project, namely firm observational evidence for a strong correlation between the extra broadening and photospheric line-profile variations in a sample of 13 Sgs with spectral types ranging from O9.5 to B8.
Type
Non-refereed

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