INVESTIGADORES
COSTA Andrea
artículos
Título:
Oscillations in stellar atmospheres
Autor/es:
COSTA, A.; FONTENLA, J.; RINGUELET, A.
Revista:
ASTROPHYSICAL JOURNAL
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Londres; Año: 1989 vol. 339 p. 314 - 317
ISSN:
0004-637X
Resumen:
Atmospheric excitation and propagation of oscillations are analyzed for typical pulsating stars. The linear, plane-parallel approach for the pulsating atmosphere gives a local description of the phenomenon. From the local analysis of oscillations, the minimum frequencies are obtained for radially propagating waves. The comparison of the minimum frequencies obtained for a variety of stellar types is in good agreement with the observed periods of the oscillations. The role of the atmosphere in the globar stellar pulsations is thus emphasized.
