Modelling the Phase-Locked Pulsations of a P=14d EROS Star

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dc.creatorKollath, Z.
dc.creatorBuchler, J. R.
dc.creatorBeaulieu, J. P.
dc.creatorGoupil, M. J.
dc.date1997-07-21
dc.date.accessioned2026-07-07T02:23:52Z
dc.date.available2026-07-07T02:23:52Z
dc.descriptionThe Fourier spectral analysis of this object suggests a nonlinear pulsation of period approximately 14d with a 3:2 frequency lock between two vibrational modes. We discuss an extensive search that we have performed in the L, M, Teff space for models of period 14 - 16 days that exhibit this particular resonance. We find models satisfying the resonance constraints both in the Cepheid and in the post AGB regimes. The nonlinear pulsations of several candidates are presented. The nature of the star remains a mystery as none of the models satisfies all the observational constraints.
dc.descriptionProceedings of the Twelfth IAP Colloquium on "Variable Stars and the Astrophysical Returns of Microlensing Surveys", Paris, Eds. R. Ferlet & J.P. Maillard, (in press)
dc.identifierhttps://arxiv.org/abs/astro-ph/9707234
dc.identifierhttp://arxiv.org/abs/astro-ph/9707234
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11415
dc.subjectAstrophysics
dc.titleModelling the Phase-Locked Pulsations of a P=14d EROS Star
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