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Spectrophotometry at 10 microns of T Tauri starsNew 8-13 micron spectra of 32 T Tau, or related young, stars are presented. Silicate emission features are commonly seen. Absorptions occur less frequently but also match the properties of silicate materials. The shape of the emission feature suggests that a more crystalline grain is responsible in the T Tau stars than those of the Trapezium region. The evolution of the silicate component of the circumstellar shell around T Tau stars, and its dependence upon stellar wind activity, visual linear polarization, and extinction are investigated. Several correlations suggest that the shells are likely to be flattened, disklike structures rather than spherical.
Document ID
19850060876
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cohen, M.
(NASA Ames Research Center Moffett Field; California, University, Berkeley, United States)
Witteborn, F. C.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1985
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 294
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
85A43027
Funding Number(s)
CONTRACT_GRANT: NCC2-142
Distribution Limits
Public
Copyright
Other

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