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...
Guardado en:
| Autores principales: | , |
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| Formato: | Articulo Comunicacion |
| Lenguaje: | Inglés |
| Publicado: |
1961
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/73468 |
| Aporte de: |
| Sumario: | 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. |
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