Forum Springer Astron. Astrophys.
Forum Whats New Search Orders

Astron. Astrophys. 359, 299-305 (2000)

Next Section Table of Contents

Spectroscopic behaviour of the Herbig Be star HD 200775 around its maximum activity in 1997

M.A. Pogodin 1, A.S. Miroshnichenko 1,2, K.S. Bjorkman 2, N.D. Morrison 2 and C.L. Mulliss 2

1 Pulkovo Observatory, Saint-Petersburg, 196140, Russia
2 Ritter Observatory, Department of Physics and Astronomy, The University of Toledo, Toledo, OH 43606-3390, USA

Received 4 February 2000 / Accepted 26 April 2000


We present the results of high-resolution spectroscopic observations of the pre-main-sequence (PMS) Herbig Be star HD 200775 obtained between August 1994 and December 1999. The behaviour of H[FORMULA], H[FORMULA] and He I before, during, and after the last high-activity event of the object in 1997 is studied. A complex picture of the circumstellar evolution in this period is discussed. It is concluded that the results of observations can be interpreted in the framework of a model with a variable stellar wind originating from the star. We emphasize the importance of coordinated high-resolution spectroscopic observations for further understanding the star's behaviour.

Key words: techniques: spectroscopic – stars: circumstellar matter – stars: individual: HD 200775 – stars: pre-main sequence

Send offprint requests to: M.A. Pogodin (pogodin@pulkovo.spb.su)

SIMBAD Objects


Next Section Table of Contents

© European Southern Observatory (ESO) 2000

Online publication: June 30, 2000