uvbyβ Photometry of the RR lyrae star AT And

Peña, J. H.; Peniche, R.

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Revista mexicana de astronomía y astrofísica

Print version ISSN 0185-1101

Abstract

PENA, J. H. and PENICHE, R.. uvbyβ Photometry of the RR lyrae star AT And. Rev. mex. astron. astrofis [online]. 2004, vol.40, n.1, pp.99-105. ISSN 0185-1101.

Strömgren uvbyβ photoelectric photometry of the variable star AT And is presented. Analysis of this data corroborates the periods compiled by Kholopov (1985). Strömgren photometry has been used for the determination of reddening e and the physical parameters log g and log T_e, as well as the metallicity [Fe/H]. The determination of M_V is discussed assuming AT And is an RR Lyrae star.

Keywords : Photometry; Stars [Variables (RR Lyrae)].

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