A Long-lived Accretion Disk around a Lithium-depleted Binary T Tauri Star
@article{White2005ALA, title={A Long-lived Accretion Disk around a Lithium-depleted Binary T Tauri Star}, author={Russel J. White and L. A. Hillenbrand}, journal={The Astrophysical Journal Letters}, year={2005}, volume={621}, pages={L65 - L68} }
We present a high-dispersion optical spectrum of St 34 and identify the system as a spectroscopic binary with components of similar luminosity and temperature (both M3 ± 0.5). Based on kinematics, signatures of accretion, and location on an H-R diagram, we conclude that St 34 is a classical T Tauri star belonging to the Taurus-Auriga T association. Surprisingly, however, neither component of the binary shows Li I λ6708 absorption, the most universally accepted criterion for establishing stellar…
48 Citations
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