Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269..229m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 269, June 1, 1983, p. 229-238. Sponsorship: Deutsche Forschungsgemeinschaft
Astronomy and Astrophysics
Astronomy
102
Binary Stars, Stellar Evolution, Stellar Spectra, T Tauri Stars, X Ray Astronomy, H Alpha Line, Orbital Elements, Radial Velocity, Spectrographs, Stellar Color, Stellar Magnitude, Stellar Mass
Scientific paper
The authors present the results of a study of five X-ray discovered weak emission pre-main-sequence stars in the Taurus-Auriga star formation complex. All are of spectral type K7-M0, and about 1-2 mag above the main sequence. One is a double-lined spectroscopic binary, the first spectroscopic binary PMS star to be confirmed. The ages, masses, and radii of these stars as determined by photometry and spectroscopy are discussed. The authors investigate the difference in emission strength between these and the T Tauri stars and conclude that these "post-T Tauri" stars do indeed appear more evolved than the T Tauri stars, although there is no evidence of any significant difference in ages.
Feigelson Eric D.
Finkenzeller Ulrich
Herbig George H.
Mundt Reinhard
Odell Andrew P.
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