uvby-β Photometry of the RR Lyrae Star AC And

Details uvby-β Photometry of the RR Lyrae Star AC And uvby-β Photometry of the RR Lyrae Star AC And

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005rmxaa..41..461p&link_type=abstract

Revista Mexicana de Astronomía y Astrofísica Vol. 41, pp. 461-470 (2005) (http://www.astroscu.unam.mx/~rmaa/)

Astronomy and Astrophysics

Astronomy

Stars: Variables: Delta Scuti, Stars: Variables: Rr Lyrae, Techniques: Photometric

Scientific paper

Strömgren uvby-β and differential V photoelectric photometry of the variable star AC And is presented. Analysis of this data, as well as data from the literature, corroborates the periods proposed by Fitch & Szeidl (1976). Strömgren photometry has been used for the determination of the reddening and the physical parameters log g and log Te, as well as the metallicity [Fe/H]. The determination of Mv is also discussed and, in view of the results, we propose that AC And is an RR Lyrae star with possible anomalous chemical composition.

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