Forbidden-line profiles of T Tauri stars

Details Forbidden-line profiles of T Tauri stars Forbidden-line profiles of T Tauri stars

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...141..108a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 141, no. 1, Dec. 1984, p. 108-115. Sponsorship: Deutsche Forschungsgemeinschaf

Astronomy and Astrophysics

Astrophysics

143

Forbidden Bands, Stellar Spectra, T Tauri Stars, Cosmic Dust, Emission Spectra, Frequency Shift, Radial Velocity, Stellar Envelopes, Stellar Models, Stellar Winds

Scientific paper

Profiles of forbidden emission lines were derived from high resolution (1.5 ⪉ R×10-4 ⪉ 3) spectrograms of 12 T Tauri stars. These observational results are compared to theoretical line profiles, derived from simple geometric models of T Tauri winds, assuming the presence of circumstellar dust or obscuring protostellar disks. Most observed profiles are not compatible with spherically symmetric radial winds but agree qualitatively with profiles predicted for axially symmetric focussed velocity fields and filled or hollow cone emission patterns.

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