Two Evolutionary Different Groups of T-Tauri Stars

Details Two Evolutionary Different Groups of T-Tauri Stars Two Evolutionary Different Groups of T-Tauri Stars

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988atsir1527...17r&link_type=abstract

Astronomicheskii Tsirkulyar NO.1527/MAR-A, P. 17, 1988

Astronomy and Astrophysics

Astronomy

Scientific paper

The author suggests that T Tauri stars can be separated into two groups. The lower-mass late-type stars (group I), which are slow rotators, will arrive on the main-sequence as solar-type stars. Chromospheric activity decreases due to the spin down. The high-mass early spectral type stars (group II), which are fast rotators, will arrive on the main-sequence as A and F dwarfs. Chromospheric activity decreases due to the spin up, that is a consequence of the convection zone decay.

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