/ftp/cats/A+A/604/A29



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J/A+A/604/A29   MC Type II and anomalous Cepheids PL and PR (Groenewegen+, 2017)
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Beginning of ReadMe : J/A+A/604/A29 MC Type II and anomalous Cepheids PL and PR (Groenewegen+, 2017) ================================================================================ The period-luminosity and period-radius relations of Type II and anomalous Cepheids in the Large and Small Magellanic Clouds. Groenewegen M.A.T., Jurkovic M. <Astron. Astrophys. 604, A29 (2017)> =2017A&A...604A..29G (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Magellanic Clouds ; Stars, variable Keywords: stars: variables: Cepheids - stars: fundamental parameters - Magellanic Clouds Abstract: Type II Cepheids (T2Cs) and anomalous Cepheids (ACs) are pulsating stars that follow separate period-luminosity relations. We study the period-luminosity (PL) and period-radius (PR) relations for T2Cs and ACs in the Magellanic Clouds. In an accompanying paper we determined luminosity and effective temperature for the 335 T2Cs and ACs in the LMC and SMC discovered in the OGLE-III survey, by constructing the spectral energy distribution (SED) and fitting this with model atmospheres and a dust radiative transfer model (in the case of dust excess). Building on these results we study the PL- and PR relations. Using existing pulsation models for RR Lyrae and classical Cepheids we derive the period-luminosity-mass-temperature-metallicity relations, and then estimate the pulsation mass. Description: The luminosities and effective temperatures derived in GJ17 for 335 T2Cs and ACs in the SMC and LMC were used to study the period-Wesenheit, and for the first time to our knowledge in the 21st Century, the period-bolometric luminosity and PR relations for these classes of stars.