A Theoretical Investigation into Period-Color relations for Cepheids in the Small Magellanic Cloud

Details A Theoretical Investigation into Period-Color relations for Cepheids in the Small Magellanic Cloud A Theoretical Investigation into Period-Color relations for Cepheids in the Small Magellanic Cloud

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20910202k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #102.02; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results of a theoretical investigation into the Cepheid Period-Color (PC) relation for the SMC. We construct a large grid of full amplitude, hydrodynamic models of low metallicity Cepheids and develop theoretical PC relations as a function of phase. We compare these relations with observations and formulate a possible theoretical framework to explain the variation of the PC relation in the Galaxy, LMC and SMC as a function of phase, metallicity and period. We briefly discuss the implications of our work on the Cepheid Period-Luminosity (PL) relation.

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