Ultraviolet variability of B, Be, and B[e] stars

D 2020

Ultraviolet variability of B, Be, and B[e] stars

KRTIČKOVÁ, Iva and Jiří KRTIČKA

Basic information

Original name

Ultraviolet variability of B, Be, and B[e] stars

Authors

KRTIČKOVÁ, Iva and Jiří KRTIČKA

Edition

Vienna, Stars and their variability observed from space, p. 435-436, 2 pp. 2020

Publisher

University of Vienna

Other information

Language

English

Type of outcome

Proceedings paper

Field of Study

10308 Astronomy

Country of publisher

Austria

Confidentiality degree

is not subject to a state or trade secret

Publication form

electronic version available online

References:

URL

Organization unit

Faculty of Science

Keywords in English

stars: early-type; stars: emission-line; Be; stars: variables: general; stars: oscillations

Abstract

V originále

We study the ultraviolet variability of evolved B[e], Be, and B stars from our Galaxy and from the Magellanic Clouds. We use IUE observations to derive fluxes of individual stars in the selected bands in the near-UV and far-UV regions. We diagnose the variability in the lines and the total flux variability. We discuss the origin of the UV light variability of studied stars. We detected pulsations in B[e] star HD 50138, LBV-type variations in HD 34664, and constant luminosity for a group of B[e] supergiants.

Links

GA18-05665S, research and development project

Name: Ztráta hmoty v pozdních fázích vývoje hmotných hvězd

Investor: Czech Science Foundation

Citovat

KRTIČKOVÁ, Iva and Jiří KRTIČKA. Ultraviolet variability of B, Be, and B[e] stars. Online. In C. Neiner, W. W. Weiss, D. Baade, R. E. Griffin, C. C. Lovekin, A. F. J. Moffat (eds). Stars and their variability observed from space. Vienna: University of Vienna, 2020, p. 435-436.

@inproceedings{1711976,
   author = {Krtičková, Iva and Krtička, Jiří},
   address = {Vienna},
   booktitle = {Stars and their variability observed from space},
   editor = {C. Neiner, W. W. Weiss, D. Baade, R. E. Griffin, C. C. Lovekin, A. F. J. Moffat (eds)},
   keywords = {stars: early-type; stars: emission-line; Be; stars: variables: general; stars: oscillations},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Vienna},
   pages = {435-436},
   publisher = {University of Vienna},
   title = {Ultraviolet variability of B, Be, and B[e] stars},
   url = {https://starsandspace.univie.ac.at/fileadmin/user_upload/p_stars/Proceedings/2020starsconf..0435K.pdf},
   year = {2020}
}

TY  - CONF
ID  - 1711976
AU  - Krtičková, Iva - Krtička, Jiří
PY  - 2020
TI  - Ultraviolet variability of B, Be, and B[e] stars
PB  - University of Vienna
CY  - Vienna
KW  - stars: early-type
KW  - stars: emission-line
KW  - Be
KW  - stars: variables: general
KW  - stars: oscillations
UR  - https://starsandspace.univie.ac.at/fileadmin/user_upload/p_stars/Proceedings/2020starsconf..0435K.pdf
L2  - https://starsandspace.univie.ac.at/fileadmin/user_upload/p_stars/Proceedings/2020starsconf..0435K.pdf
N2  - We study the ultraviolet variability of evolved B[e], Be, and B stars from our Galaxy and from the Magellanic Clouds. We use IUE observations to derive fluxes of individual stars in the selected bands in the near-UV and far-UV regions. We diagnose the variability in the lines and the total flux variability. We discuss the origin of the UV light variability of studied stars. We detected pulsations in B[e] star HD 50138, LBV-type variations in HD 34664, and constant luminosity for a group of B[e] supergiants.
ER  -

KRTIČKOVÁ, Iva and Jiří KRTIČKA. Ultraviolet variability of B, Be, and B[e] stars. Online. In C. Neiner, W. W. Weiss, D. Baade, R. E. Griffin, C. C. Lovekin, A. F. J. Moffat (eds). \textit{Stars and their variability observed from space}. Vienna: University of Vienna, 2020, p.~435-436.

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