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Title:
VLA observations of mass loss from T Tauri stars
Authors:
Cohen, M.; Bieging, J. H.; Schwartz, P. R.
Affiliation:
AA(NASA, Ames Research Center, Moffett Field, CA), AB(California, University, Berkeley, CA), AC(U.S. Navy, E. O. Hulburt Center for Space Research, Washington, DC)
Publication:
Astrophysical Journal, Part 1, vol. 253, Feb. 15, 1982, p. 707-715. (ApJ Homepage)
Publication Date:
02/1982
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Radio Astronomy, Radio Emission, Stellar Mass Ejection, T Tauri Stars, Anisotropy, Astronomical Maps, Cores, Molecular Clouds, Radio Sources (Astronomy), Radio Spectra, Stellar Evolution, Stellar Rotation, Stellar Winds
DOI:
10.1086/159671
Bibliographic Code:
1982ApJ...253..707C

Abstract

Six of 24 pre-main sequence stars surveyed with the VLA have been found to emit at 4.885 GHz. Radio maps of the six stars, V410 Tau, T Tau, DG Tau, LkH-alpha 101, L1551 IRS5, and Z CMa, show unresolved cores of less than 0.5 arcsec in most cases, along with 1-2 arcsec, faint, extended structures. Mass loss rates, derived under the assumption of uniform spherical winds, range from approximately 3 x 10 to the -7th to about 4 x 10 to the -5th solar masses/year. Because the flows are highly anisotropic, however, these estimates are to be taken only as likely upper limits.

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