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Observations of convection in A-type stars

Published online by Cambridge University Press:  02 March 2005

Barry Smalley
Barry Smalley
Affiliation:
Astrophysics Group, School of Chemistry & Physics, Keele University, Staffordshire ST5 5BG, United Kingdom
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Abstract

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Convection and turbulence in stellar atmospheres have a significant effect on the emergent flux from A-type stars. The recent theoretical advancements in convection modelling have proven to be a challenge to the observers to obtain measurements with sufficient precision and accuracy to permit discrimination between the various predictions.

A discussion of the current observational techniques used to evaluate the various convection theories is presented. These include filter photometry, spectrophotometry, hydrogen lines, and metal lines. The results from these techniques are given, along with the successes and limitations.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

Convectionturbulencetechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS224 , July 2004 , pp. 131 - 138
Copyright
© 2004 International Astronomical Union