HYDROGEN LINES IN B-e STARS ENVELOPES

The investigation of Balmer Hα and Hb line profiles for 28 Be and Be-shell stars have been carried out. The emission profiles of stars were obtained by subtracting from “A Be star atlas” photospheric line profiles which were computed from Kurucz models and corrected from gravity and rotation. The re...

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Bibliographic Details
Main Authors: S. N. Udovichenko, E. I. Konchagina
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2017-06-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/105449
Description
Summary:The investigation of Balmer Hα and Hb line profiles for 28 Be and Be-shell stars have been carried out. The emission profiles of stars were obtained by subtracting from “A Be star atlas” photospheric line profiles which were computed from Kurucz models and corrected from gravity and rotation. The relationships between emission-line widths, equivalent widths and rotational velocity for 28 B-e stars confirm the origin of envelope these stars from rotational mass loss, consistent with a rotating,  equatorial disk. The smaller emission disks shown the weak Hα emission lines. The biggest - the strong one.
ISSN:1810-4215