The Metallicity Dependence of the Cepheid P-L Relation in M101

The impact of metallicity on the Cepheid Period-Luminosity (P-L) relation is investigated using HST ACS V and I images of M101. Variations in the reddening-free Wesenheit parameter (W), which is employed as a proxy for luminosity, are examined as a function of the radial distance from the center of...

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Veröffentlicht in:	arXiv.org 2013-10
Hauptverfasser:	Mager, Violet A, Madore, Barry F, Freedman, Wendy L
Format:	Artikel
Sprache:	eng
Schlagworte:	Cepheid variables Dependence Luminosity Metallicity Physics - Cosmology and Nongalactic Astrophysics
Online-Zugang:	Volltext
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