A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars

A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars

Using the GR model, we analyze the ultraviolet Si IV resonance lines in the spectra of 19 Be stars of different spectral subtypes, in order to detect the presence of absorption components and to analyze their characteristics. From this analysis we can calculate the values of a group of physical para...

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Bibliographic Details
Main Authors: Antoniou A., Danezis E., Lyratzi E., Stathopoulos D., Dimitrijević M. S.
Format: Article
Language:English
Published: De Gruyter 2011-12-01
Series:Open Astronomy
Subjects:
stars
be
techniques
spectroscopic
ultraviolet
si iv resonance lines
Online Access:https://doi.org/10.1515/astro-2017-0334
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spelling doaj-ee6ff373496f4e4f8ea586da8ba3f0c62021-09-06T19:40:13ZengDe GruyterOpen Astronomy2543-63762011-12-0120454855110.1515/astro-2017-0334astro-2017-0334A Statistical Study of the Si IV Resonance Line Parameters in 19 Be StarsAntoniou A.0Danezis E.1Lyratzi E.2Stathopoulos D.3Dimitrijević M. S.4University of Athens, Faculty of Physics, Department of Astrophysics, Astronomy and Mechanics, Panepistimioupoli, Zographou 15784, Athens, Greece GreeceUniversity of Athens, Faculty of Physics, Department of Astrophysics, Astronomy and Mechanics, Panepistimioupoli, Zographou 15784, Athens, GreeceUniversity of Athens, Faculty of Physics, Department of Astrophysics, Astronomy and Mechanics, Panepistimioupoli, Zographou 15784, Athens, Greece GreeceUniversity of Athens, Faculty of Physics, Department of Astrophysics, Astronomy and Mechanics, Panepistimioupoli, Zographou 15784, Athens, Greece GreeceAstronomical Observatory of Belgrade, Volgina 7, 11160, Belgrade, Serbia FranceUsing the GR model, we analyze the ultraviolet Si IV resonance lines in the spectra of 19 Be stars of different spectral subtypes, in order to detect the presence of absorption components and to analyze their characteristics. From this analysis we can calculate the values of a group of physical parameters, such as the apparent rotational and radial velocities, the random velocities of the ion thermal motions, as well as the absorbed energy and the logarithm of the column density of the independent regions of matter which produce the main and the satellite components of the studied spectral lines.https://doi.org/10.1515/astro-2017-0334starsbetechniquesspectroscopicultravioletsi iv resonance lines
collection DOAJ
language English
format Article
sources DOAJ
author Antoniou A.
Danezis E.
Lyratzi E.
Stathopoulos D.
Dimitrijević M. S.
spellingShingle Antoniou A.
Danezis E.
Lyratzi E.
Stathopoulos D.
Dimitrijević M. S.
A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars
Open Astronomy
stars
be
techniques
spectroscopic
ultraviolet
si iv resonance lines
author_facet Antoniou A.
Danezis E.
Lyratzi E.
Stathopoulos D.
Dimitrijević M. S.
author_sort Antoniou A.
title A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars
title_short A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars
title_full A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars
title_fullStr A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars
title_full_unstemmed A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars
title_sort statistical study of the si iv resonance line parameters in 19 be stars
publisher De Gruyter
series Open Astronomy
issn 2543-6376
publishDate 2011-12-01
description Using the GR model, we analyze the ultraviolet Si IV resonance lines in the spectra of 19 Be stars of different spectral subtypes, in order to detect the presence of absorption components and to analyze their characteristics. From this analysis we can calculate the values of a group of physical parameters, such as the apparent rotational and radial velocities, the random velocities of the ion thermal motions, as well as the absorbed energy and the logarithm of the column density of the independent regions of matter which produce the main and the satellite components of the studied spectral lines.
topic stars
be
techniques
spectroscopic
ultraviolet
si iv resonance lines
url https://doi.org/10.1515/astro-2017-0334
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AT stathopoulosd astatisticalstudyofthesiivresonancelineparametersin19bestars
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AT dimitrijevicms statisticalstudyofthesiivresonancelineparametersin19bestars
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