Bibcode
Simón-Díaz, S.; Herrero, A.; Uytterhoeven, Katrien; Castro, N.; Aerts, Conny; Puls, Joachim
Referencia bibliográfica
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
Número de citas
3
Número de citas referidas
1
Descripción
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.