On the ages of exoplanet host stars

  title={On the ages of exoplanet host stars},
  author={C. Saffe and M. G{\'o}mez and C. Chavero},
  journal={Astronomy and Astrophysics},
  • 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
    106 Citations
    An investigation of chromospheric activity spanning the Vaughan-Preston gap: impact on stellar ages
    • 28
    • PDF
    Radii, masses, and ages of 18 bright stars using interferometry and new estimations of exoplanetary parameters
    • 29
    • Highly Influenced
    • PDF
    The multiplicity of exoplanet host stars. Spectroscopic confirmation of the companions GJ 3021 B and
    • 43
    • Highly Influenced
    • PDF
    Discrepancies between isochrone fitting and gyrochronology for exoplanet host stars
    • 26
    • PDF
    Revising the ages of planet-hosting stars
    • 30
    • PDF


    A search for disks around exoplanet host stars
    • 6
    • PDF
    Statistical properties of exoplanets. II. Metallicity, orbital parameters, and space velocities
    • 233
    • PDF
    The age of the solar neighbourhood
    • 91
    • Highly Influential
    • PDF
    Parent Stars of Extrasolar Planets. V. HD 75289
    • 115
    • PDF
    The age-activity-rotation relationship in solar-type stars
    • 103
    • Highly Influential
    • PDF
    No planet for HD 166435
    • 567
    • PDF
    A survey of chromospheric Ca II H and K emission in field stars of the solar neighborhood
    • 175
    • Highly Influential
    Chromospheric Activity and Ages of Solar-Type Stars
    • 22
    Parent Stars of Extrasolar Planets. VI. Abundance Analyses of 20 New Systems
    • 221
    • PDF