'Prominences' of RY Tauri

Details 'Prominences' of RY Tauri 'Prominences' of RY Tauri

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.169...61p&link_type=abstract

(IAU, European Regional Astronomy Meeting on New Windows to the Universe, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics a

Astronomy and Astrophysics

Astrophysics

6

D Lines, Stellar Spectra, Stellar Winds, T Tauri Stars, Cold Gas, Emission Spectra, Interstellar Gas, Stellar Magnetic Fields, Stellar Rotation

Scientific paper

High-resolution spectroscopic monitoring of the Na I D lines in the T Tau-type star RY Tau resulted in the discovery of relatively cool gas clouds ascending and descending inside the stellar wind on a time-scale of few days and corotating with the star. Radial velocity of the clouds varies from - 100 to + 100 km/s, which is twice as large as the v sin i of the star.

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