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Astron. Astrophys. 325, 1077-1082 (1997)

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Determination of lg g of several variable Herbig Ae/Be stars

G.U. Kovalchuk and A.F. Pugach

Main Astronomical Observatory of the National Academy of Sciences of Ukraine, 252650 Kyiv, Golosiiv, Ukraine

Received 30 April 1996 / Accepted 20 November 1996

Abstract

Echelle spectrogrammes of 19 variable Herbig Ae/Be stars were obtained in 1988-1992 in the wavelength interval 4000-7000 [FORMULA] with the spectral complex "Zebra" at the 6-m telescope of Special Astrophysical Observatory, Russian Academy of Sciences (SAO RAS). Kurucz's models were employed for the analysis of the hydrogen absorption line profiles. For all programme and standard stars lg g gravity parameters were obtained. The location of the stars on the "lg g- [FORMULA] " diagram does not agree with the hypothesis that the studied objects are pre-main sequence stars.

Key words: stars: early type - stars: pre-main sequence - stars: variables - stars: emission line - stars: fundamental parameters

Send offprint requests to: G.U. Kovalchuk, e-mail: koval@mao.kiev.ua

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© European Southern Observatory (ESO) 1997

Online publication: April 28, 1998

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