Note on the evolution of the Cepheids

The hypothesis that classical Cephelda are normal products of the evolution of B-type is examined and its consequences are compared to observations. Agreement is found a) for the number of B stars and Cephelda in galactic dusters and in the general field b) the distribution of Cephelds in associatio...

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Autores principales: Jaschek, Carlos, Ringuelet, Adela Emilia
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 1961
Materias:
Astronomía
Galaxias
Estrellas
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/73468
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-73468
record_format dspace
spelling I19-R120-10915-734682024-04-19T13:01:30Z http://sedici.unlp.edu.ar/handle/10915/73468 Note on the evolution of the Cepheids Jaschek, Carlos Ringuelet, Adela Emilia 1961 2019-03-21T13:05:08Z en Astronomía Galaxias Estrellas The hypothesis that classical Cephelda are normal products of the evolution of B-type is examined and its consequences are compared to observations. Agreement is found a) for the number of B stars and Cephelda in galactic dusters and in the general field b) the distribution of Cephelds in associations. An estimate of the lifetime of Cephelda is given; the result is 2,5x10⁶ years. Finally the period-frequency distribution of the Cephelds is derived theoretically and compared to observations; the agreement 1b satisfactory for the longer periods. The paper will be published in full elsewhere. Asociación Argentina de Astronomía Articulo Comunicacion http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Galaxias
Estrellas
spellingShingle Astronomía
Galaxias
Estrellas
Jaschek, Carlos
Ringuelet, Adela Emilia
Note on the evolution of the Cepheids
topic_facet Astronomía
Galaxias
Estrellas
description The hypothesis that classical Cephelda are normal products of the evolution of B-type is examined and its consequences are compared to observations. Agreement is found a) for the number of B stars and Cephelda in galactic dusters and in the general field b) the distribution of Cephelds in associations. An estimate of the lifetime of Cephelda is given; the result is 2,5x10⁶ years. Finally the period-frequency distribution of the Cephelds is derived theoretically and compared to observations; the agreement 1b satisfactory for the longer periods. The paper will be published in full elsewhere.
format Articulo
Comunicacion
author Jaschek, Carlos
Ringuelet, Adela Emilia
author_facet Jaschek, Carlos
Ringuelet, Adela Emilia
author_sort Jaschek, Carlos
title Note on the evolution of the Cepheids
title_short Note on the evolution of the Cepheids
title_full Note on the evolution of the Cepheids
title_fullStr Note on the evolution of the Cepheids
title_full_unstemmed Note on the evolution of the Cepheids
title_sort note on the evolution of the cepheids
publishDate 1961
url http://sedici.unlp.edu.ar/handle/10915/73468
work_keys_str_mv AT jaschekcarlos noteontheevolutionofthecepheids
AT ringueletadelaemilia noteontheevolutionofthecepheids
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