Two-zone models for multimode Cepheid variables. II - Comparison with models for classical Cepheids with complicated envelope hydrogen profiles

Details Two-zone models for multimode Cepheid variables. II - Comparison with models for classical Cepheids with complicated envelope hydrogen profiles Two-zone models for multimode Cepheid variables. II - Comparison with models for classical Cepheids with complicated envelope hydrogen profiles

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....84..356p&link_type=abstract

Astronomy and Astrophysics, vol. 84, no. 3, Apr. 1980, p. 356-358.

Astronomy and Astrophysics

Astrophysics

2

Cepheid Variables, Resonance, Stellar Envelopes, Stellar Models, Abundance, Helium, Hydrogen, Stellar Evolution

Scientific paper

It is shown that two-zone models suffice for discussions of period
ratios and resonances in classical Cepheids; models with more
complicated hydrogen profiles have basically the same properties.
Precise resonance is obtained only for models with extreme envelope
helium enrichment.

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