Are there two classes of T Tauri stars

Details Are there two classes of T Tauri stars Are there two classes of T Tauri stars

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....75l..14m&link_type=abstract

Astronomy and Astrophysics, vol. 75, no. 3, June 1979, p. L14-L16. Deutsche Forschungsgemeinschaft

Astronomy and Astrophysics

Astrophysics

2

Stellar Evolution, Stellar Spectrophotometry, T Tauri Stars, Ubv Spectra, Emission Spectra, Line Spectra, Main Sequence Stars, Nebulae, Star Clusters

Scientific paper

The dereddened (U-B) vs (B-V) two-color diagram of all T Tauri stars for which UBV colors and reddening data are available is investigated. Indications are found for the existence of two separate subgroups in the distribution of the T Tauri stars in this diagram. The stars of one group have dereddened (U-B) indices greater than or about zero, while those of the other have dereddened (U-B) indices less than or about zero. The presence of such subgroups is not visible in the uncorrected UBV data. A tentative interpretation in terms of evolutionary effects is given.

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