Journal Article

A Ca <span class="smallCaps">ii</span> H&K survey of γ Doradus candidates

Anthony B. Kaye and Klaus G. Strassmeier

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 294, issue 2, pages L35-L39
Published in print February 1998 | ISSN: 0035-8711
Published online February 1998 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-8711.1998.01363.x
A Ca ii H&K survey of γ Doradus candidates

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Abstract

In an investigation of the starspot hypothesis as it applies to the ‘slowly variable’ F-type dwarfs, we spectroscopically observed eight promising γ Doradus candidates to search for Ca ii H&K emission. We found that there are no significant emission reversals in the cores of these resonance lines. Based on the ceiling flux calculations of the Ca ii K line and on calculations of the Rossby number, we conclude that there is no support for the presence of strong magnetic activity and the starspot hypothesis in these objects.

Keywords: stars: activity; stars: chromospheres; stars: oscillations; stars: variables: other

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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