Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators

@article{Mascareo2015RotationPO,
  title={Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators},
  author={A. Mascare{\~n}o and R. Rebolo and J. G. Hern'andez and M. Esposito},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2015},
  volume={452},
  pages={2745-2756}
}
We determine rotation periods of a sample of 48 late F-type to mid-M dwarf stars using time-series high-resolution spectroscopy of the Ca II H&K and H-alpha chromospheric activity indicators. We find good agreement between the rotation periods obtained from each of these two indicators. An empirical relationship between the level of chromospheric emission measured by log (R'HK) and the spectroscopic rotation periods is reported. This relation is largely independent of the spectral type and the… Expand
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