Ages of late spectral type Vega-like stars

Details Ages of late spectral type Vega-like stars Ages of late spectral type Vega-like stars

2000-02-16

arxiv.org/abs/astro-ph/0002323v1

Astronomy and Astrophysics

Astrophysics

6 pages text, 5 figures, to be appeared in the ApJ Letters

Scientific paper

10.1086/312597

We have estimated the ages of eight late-type Vega-like stars by using standard age dating methods for single late-type stars, e.g., location on the color magnitude diagram, Li 6708 angstrom absorption, CaII H&K emission, X-ray luminosity, and stellar kinematic population. With the exception of the very unusual pre-main sequence star system HD 98800, all the late-type Vega-like stars are the same age as the Hyades cluster (600-800 Myr) or older.

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