Corpus ID: 117891447

# The activity and rotation limit in the Hyades

@article{Seemann2010TheAA,
title={The activity and rotation limit in the Hyades},
author={U. Seemann and Ansgar Reiners and A. Seifahrt and Martin Kurster},
journal={arXiv: Solar and Stellar Astrophysics},
year={2010}
}
• U. Seemann, +1 author M. Kurster
• Published 8 December 2010
• Physics
• arXiv: Solar and Stellar Astrophysics
We conduct a study of K to M type stars to investigate the activity and the rotation limit in the Hyades. We use a sample of 40 stars in this intermediate-age cluster (~625 Myr) to probe stellar rotation in the threshold region where stellar activity becomes prevalent. Here we present projected equatorial velocities (vsin i) and chromospheric activity measurements (H{\alpha}) that indicate the existence of fast rotators in the Hyades at spectral types where also the fraction of stars with H… Expand
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