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Is macroturbulence in OB Sgs related to pulsations?

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.

preprint2010arXivOpen access
S. Simón-DíazA. HerreroK. UytterhoevenN. CastroC. AertsJ. Puls
astro-ph.SR
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Open access6 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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S. Simón-DíazA. HerreroK. UytterhoevenN. CastroC. AertsJ. Puls

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