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A search for evidence of cold dust around naked T Tauri starsResults of millimeter/ submillimeter photometry of 16 naked T Tauri stars, 11 of which lie in the nearby Taurus-Auriga star-forming region, are presented. Evidence of cold circumstellar dust, which could exist around these objects in the form of remnant disks if NTTS evolved from classical T Tauri stars, is explored. The only star detected at the primary observing wavelength of 1100 microns was V836 Tau, which was also detected at 800 microns with an upper limit obtained at 450 microns. Its spectral energy distribution longward of 10 microns is consistent with that expected for a flat axisymmetric moderately active disk with a solar mass of 0.04. Upper limits on the disk masses of undetected stars in Taurus-Auriga are typically 0.02 solar mass, for an assumed temperature of not less than 6 K at the outer disk radius. It is argued that the high levels of magnetic activity found in NTTS may produce detectable gyrosynchroton emission at millimeter wavelengths.
Document ID
19920028474
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Skinner, Stephen L.
(Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Brown, Alexander
(Joint Institute for Laboratory Astrophysics Boulder, CO, United States)
Walter, Frederick M.
(New York, State University Stony Brook, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1991
Publication Information
Publication: Astronomical Journal
Volume: 102
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
92A11098
Funding Number(s)
CONTRACT_GRANT: NSF AST-89-96308
CONTRACT_GRANT: NAGW-17772
Distribution Limits
Public
Copyright
Other

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