Spectroscopic observations of 33 T Tau stars in the blue

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Stellar Evolution, Stellar Spectra, T Tauri Stars, Variable Stars, Balmer Series, Calcium, Hydrogen, Iron, Tables (Data)

Scientific paper

A description of approximately 100 spectra of 33 T Tau stars in the wavelength region 3600-5200 A is presented. The spectra were obtained between November 1983 and April 1984 at the 80 cm telescope of the Haute Provence Observatory. A large variety of emission features in different atomic species are observed and the spectra are organized according to the observed order of emission. The order of emissions in this experiment is Balmer lines, Ca II lines, and Fe II lines; this ordering reflects the different physical conditions which characterize the chromosphere and outer envelopes of the stars.

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