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astro-ph2007★ 5 cited
The H-alpha stellar and interstellar emission in the open cluster NGC 6910
J. Kubat, D. Korcakova, A. Kawka +3
We verify the nature of emission-line stars in the field of the open cluster NGC 6910. % Spectroscopy in the H-alpha region was obtained. Raw CCD frames of spectra of all stars fai…
astro-ph2005
Observations of H-alpha, iron, and oxygen lines in B, Be, and shell stars
S. M. Saad, J. Kubat, D. Korcakova +8
We have carried out a spectroscopic survey of several B, Be, and shell stars in optical and near-infrared regions. Line profiles of the H-alpha line and of selected Fe II and O I l…
astro-ph2000
Properties and nature of Be stars. XX. Binary nature and orbital elements of gamma Cas
P. Harmanec, P. Habuda, S. Stefl +8
An analysis of accurate radial velocities (RVs) of the Be star gamma Cas from 295 Reticon spectrograms secured between October 1993 and May 2000 allowed us to prewhiten the RVs for…