The mean absolute magnitude of the Am stars

The mean absolute magnitude of the Am stars was determined from statistical parallaxes. The material comprises 137 Am stars all contained in the “Bright Stars Catalogue”. Separate solution based upon the tau and upsilon components were derived, and both are in excellent agreement. The final value wa...

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Detalles Bibliográficos
Autores principales: Rocha, S., Jaschek, Carlos
Formato: Articulo Comunicacion
Lenguaje:Español
Publicado: 1971
Materias:
Astronomía
Galaxias
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98481
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98481
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
Galaxias
spellingShingle Astronomía
Galaxias
Rocha, S.
Jaschek, Carlos
The mean absolute magnitude of the Am stars
topic_facet Astronomía
Galaxias
description The mean absolute magnitude of the Am stars was determined from statistical parallaxes. The material comprises 137 Am stars all contained in the “Bright Stars Catalogue”. Separate solution based upon the tau and upsilon components were derived, and both are in excellent agreement. The final value was corrected for an average value of blanketing and for the effect of the invisible spectroscopic companions of the Am stars. The final result is: Mv = 0.9 mag and the mean probable error was estimated to be 0.3 mag. This result locates the Am stars 0.8 mag above the main sequence and 1.5 mag above the ZAMS. The duplicity and the blanketing correction therefore do not modify substantially previous conclusions on the place of the Am stars in the H-R diagram.
format Articulo
Comunicacion
author Rocha, S.
Jaschek, Carlos
author_facet Rocha, S.
Jaschek, Carlos
author_sort Rocha, S.
title The mean absolute magnitude of the Am stars
title_short The mean absolute magnitude of the Am stars
title_full The mean absolute magnitude of the Am stars
title_fullStr The mean absolute magnitude of the Am stars
title_full_unstemmed The mean absolute magnitude of the Am stars
title_sort mean absolute magnitude of the am stars
publishDate 1971
url http://sedici.unlp.edu.ar/handle/10915/98481
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AT jaschekcarlos themeanabsolutemagnitudeoftheamstars
AT rochas meanabsolutemagnitudeoftheamstars
AT jaschekcarlos meanabsolutemagnitudeoftheamstars
bdutipo_str Repositorios
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