• DOI:10.1051/0004-6361:20053452
Corpus ID: 11616693

On the ages of exoplanet host stars

@article{Saffe2005OnTA,
  title={On the ages of exoplanet host stars},
  author={C. Saffe and M. G{\'o}mez and C. Chavero},
  journal={Astronomy and Astrophysics},
  year={2005},
  volume={443},
  pages={609-626}
}

C. Saffe, M. Gómez, C. Chavero

Published 2005

Physics

Astronomy and Astrophysics

We obtained spectra, covering the CaII H and K region, for 49 exoplanet host (EH) stars, observable from the southern hemisphere. We measured the chromospheric activity index, RHK. We compiled previously published values of this index for the observed objects as well as the remaining EH stars in an effort to better smooth temporal variations and derive a more representative value of the average chromospheric activity for each object. We used the average index to obtain ages for the group of EH… CONTINUE READING

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