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The Hertzsprung-gap giant 31 Comae in 2013: Magnetic field and activity indicators
Published online by Cambridge University Press: 07 August 2014
Abstract
We have observed the giant star 31 Comae in April and May 2013 with the spectropolarimeter Narval at Pic du Midi Observatory, France. 31 Comae is a single, rapidly rotating giant with rotational period ~6.8 d and vsini ~ 67 km/s. We present measurements and discuss variability of the longitudinal magnetic field (Bl), spectral activity indicators Hα, CaII H&K, Ca II IR triplet and evolutionary status. Our future aim is to perform a Zeeman-Doppler imaging study for the star.
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- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 9 , Symposium S302: Magnetic Fields throughout Stellar Evolution , August 2013 , pp. 365 - 366
- Copyright
- Copyright © International Astronomical Union 2014
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