Physical Sciences and Mathematics Commons^™

Characterizing The Ab Doradus Moving Group Via High-Resolution Spectroscopy And Kinematic Traceback, Kyle Mccarthy, Ronald J. Wilhelm

Physics and Astronomy Faculty Publications

We present a detailed analysis of 10 proposed F and G members of the nearby, young moving group AB Doradus (ABD). Our sample was obtained using the 2.7 m telescope at the McDonald Observatory with the coude echelle spectrograph, achieving R ~ 60,000 and signal-to-noise ratio ~200. We derive spectroscopic T _eff, log(g), [Fe/H], and microturbulance (v_t ) using a bootstrap method of the TGVIT software resulting in typical errors of 33K in T _eff, 0.08 dex in log(g), 0.03 dex in [Fe/H], and 0.13 km s^–1 in v_t . …