Silicate Emission in the TW Hydrae Association

  title={Silicate Emission in the TW Hydrae Association},
  author={Michael L. Sitko and David K. Lynch and R. W. Russell},
  journal={The Astronomical Journal},
The TW Hydrae association is the nearest young stellar association. Among its members are HD 98800, HR 4796A, and TW Hydrae itself, the nearest known classical T Tauri star. We have observed these three stars spectroscopically between 3 and 13 μm. In TW Hya, the spectrum shows a silicate emission feature that is similar to many other young stars' with protostellar disks. The 11.2 μm feature indicative of significant amounts of crystalline olivine is not as strong as in some young stars and… 
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