Magnetic Field Structure and Activity of the He-burning Giant 37 Comae
classification
🌌 astro-ph.SR
keywords
activityevolutionarygiantmagneticwereabundancealphaanalysis
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We present the first magnetic map of the late-type giant 37 Com. The Least Squares Deconvolution (LSD) method and Zeeman Doppler Imaging (ZDI) inversion technique were applied. The chromospheric activity indicators H?_alpha, S-index, Ca ii IRT and the radial velocity were also measured. The evolutionary status of the star has been studied on the basis of state-of-the-art stellar evolutionary models and chemical abundance analysis. 37 Com appears to be in the core Helium-burning phase.
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