Estrellas tempranas deficientes de helio

Attention is called upon a group of stars in which the spectral types and the photoelectric colors disagree, the colors being too blue for the spectral types. Although a certain number of these objects is well known -the peculiar stars of the so called ”λ4200" group- the authors found a number...

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Detalles Bibliográficos
Autores principales: Jaschek, Mercedes, Jaschek, Carlos, Kucewicz, B.
Formato: Articulo Comunicacion
Lenguaje:Español
Publicado: 1969
Materias:
Astronomía
Galaxias
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/94472
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-94472
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
Jaschek, Mercedes
Jaschek, Carlos
Kucewicz, B.
Estrellas tempranas deficientes de helio
topic_facet Astronomía
Galaxias
description Attention is called upon a group of stars in which the spectral types and the photoelectric colors disagree, the colors being too blue for the spectral types. Although a certain number of these objects is well known -the peculiar stars of the so called ”λ4200" group- the authors found a number of additional stars definitely not peculiar but exhibiting a too blue color. The objects observed so far from La Plata can be divided into two groups whose common characteristics are the weak He I lines, corresponding to a later type (B8) than their colors indicate (B5), and whose differences consist in the strength of the C II lines. In one group, CII is normal for the colors, while in the other group it is normal for the strength of the He I lines. More objects of this group are being observed.
format Articulo
Comunicacion
author Jaschek, Mercedes
Jaschek, Carlos
Kucewicz, B.
author_facet Jaschek, Mercedes
Jaschek, Carlos
Kucewicz, B.
author_sort Jaschek, Mercedes
title Estrellas tempranas deficientes de helio
title_short Estrellas tempranas deficientes de helio
title_full Estrellas tempranas deficientes de helio
title_fullStr Estrellas tempranas deficientes de helio
title_full_unstemmed Estrellas tempranas deficientes de helio
title_sort estrellas tempranas deficientes de helio
publishDate 1969
url http://sedici.unlp.edu.ar/handle/10915/94472
work_keys_str_mv AT jaschekmercedes estrellastempranasdeficientesdehelio
AT jaschekcarlos estrellastempranasdeficientesdehelio
AT kucewiczb estrellastempranasdeficientesdehelio
AT jaschekmercedes earlytypeheliumdeficientstars
AT jaschekcarlos earlytypeheliumdeficientstars
AT kucewiczb earlytypeheliumdeficientstars
bdutipo_str Repositorios
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