Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-07-14
Astron.Astrophys.Trans. 16 (1998) 187
Astronomy and Astrophysics
Astrophysics
5 pages 3 figures
Scientific paper
The results of spectroscopic study of Ae Herbig star RR Tau are reported. The observations were carried out with a moderate resolution. In accordance with the presented data the Halpha line exhibits a double-peaked emission profile. The blue component is weaker than or equal to the red one. Variations of the Halpha equivalent width by a factor of 4 - 5 were found. The structure of this line also varies. On JD 2447148 a red absorption reversal of the Halpha profile was observed. The Hbeta spectral line exhibited both emission and absorption. On JD 2449664 the single-peak emission shifted to the short wavelength range of the underlying absorption line and the red wing of the stellar line looked like a red-shifted absorption component of medium strength. The Hdelta line was in absorption.
Kardopolov V. I.
Kondratyeva L. N.
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