Disk Dissipation Timescale of Pre-main Sequence Stars in Taurus

Abstract

We present the results of an age determination study of pre-main sequence stars in the Taurus star-forming region. The ages of 10 single stars with masses of 0.5-1.1 Msun were derived from the surface gravities, estimated from high-resolution optical and near-infrared spectroscopy. The equivalent width ratios of nearby absorption line pairs were employed for the surface gravity diagnostic, which directly reflects the parameters of the stellar atmosphere without any veiling correction. From a comparison of determined ages and near-infrared color excesses such as J-H, J-K, and J-L, the inner disk lifetime of the young stars with 0.5-1.1 Msun in Taurus is estimated to be 3-4 Myr.

14 pages, 5 figures, accepted for publication in Publications of the Astronomical Society of Japan

References in corpus (6)

• Photoevaporation of protoplanetary discs II: evolutionary models and observable properties
• On the Diversity of the Taurus Transitional Disks: UX Tau A & Lk Ca 15
• On the formation of H-alpha line emission around classical T Tauri stars
• A Large-Area Search for Low Mass Objects in Upper Scorpius I: The Photometric Campaign and New Brown Dwarfs
• The evolution of stars in the Taurus-Auriga T association
• A kinematic study of the Taurus-Auriga T association

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