Poster Abstracts

Name/Affiliation:  Bokyoung Kim (Ewha Womans University)

Title:  High-Resolution Spectroscopy of Hipparcos Cool Dwarfs

We present a preliminary result from high-resolution and high signal-to-noise spectroscopic survey of ~170 G and K dwarfs in the Hipparcos catalog. We describe basic properties of our sample stars and provide preliminary estimates of stellar parameters ([Fe/H], Teff, logg). Using these parameters, we test the accuracy of stellar isochrones that have previously been calibrated against observations of well-studied open cluster systems. Finally, we provide a preliminary analysis of the luminosity of young field stars, which may hold a clue to understanding a short Pleiades distance from the Hipparcos parallax.