A search for high-velocity molecular gas around T Tauri stars

Details A search for high-velocity molecular gas around T Tauri stars A search for high-velocity molecular gas around T Tauri stars

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...261..151e&link_type=abstract

Astrophysical Journal, Part 1, vol. 261, Oct. 1, 1982, p. 151-160.

Astronomy and Astrophysics

Astrophysics

134

Interstellar Gas, Main Sequence Stars, Molecular Clouds, Stellar Envelopes, Stellar Winds, T Tauri Stars, Nebulae, Red Shift, Spatial Distribution, Stellar Mass Ejection

Scientific paper

High-velocity molecular gas (HVMG) has been detected toward three T Tauri stars from a survey of 28 T Tauri stars and three Herbig Ae/Be stars. The HVMG is attributed to mass outflow from these stars. From spatial maps of the HVMG around two of these atars, mass loss rates of more than 1 x 10 to the -7 solar mass/year from T Tau and 7 x 10 to the -8 or more solar mass/year from AS 353 A are determined. These values are in excess of the 3 x 10 to the -8 solar mass/year theoretical limit set by DeCampli for mass loss rates from T Tauri stars. Possible reasons for this are discussed, as are the association of high-velocity CO wings with the presence of Herbig-Haro objects and the impact of T Tauri winds on molecular cloud dynamics.

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