Title of article
Is macroturbulence in OB Sgs related to pulsations?
Author/Authors
Sergio Simon-Diaz، نويسنده , , Artemio Herrero، نويسنده , , Katrien Uytterhoeven، نويسنده , , Norberto Castro، نويسنده , , Conny Aerts، نويسنده , , Joachim Puls، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
2
From page
549
To page
550
Abstract
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.
Keywords
stars: early-type , stars: rotation , stars: oscillations , stars: atmospheres , supergiants
Journal title
Proceedings of the International Astronomical Union
Serial Year
2010
Journal title
Proceedings of the International Astronomical Union
Record number
667946
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