Revisited The Draco Dwarf Spheroidal Galaxy Variable Star Population

Details Revisited The Draco Dwarf Spheroidal Galaxy Variable Star Population Revisited The Draco Dwarf Spheroidal Galaxy Variable Star Population

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916210k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #162.10; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

The Draco dwarf spheroidal galaxy was first mined for variable star by Baade & Swope, which yielded approximately 200 stars. We present an updated census of variable stars found in Draco with an emphasis on the RR Lyrae (RRL) stars. In total, we have found 267 RRL stars. We have calculated updated periods, amplitudes, and mean magnitudes in V and I. We have also performed a Fourier decomposition on the light curves of the ab-type RRL and calculated photometric metallicities. We will discuss our findings with the Blazhko and double-mode RRL as well as the Oosterhoff classification of Draco.

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