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RR Lyrae Stars and Anomalous Cepheids in the Draco Dwarf Spheroidal Galaxy

K. Kinemuchi·H. A. Smith·A. LaCluyze·C. L. Clark·H. C. Harris·N. Silbermann·L. A. Snyder
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Abstract

We present new results on RR Lyrae stars and anomalous Cepheids in the Draco dwarf spheroidal galaxy. We have increased the number of double-mode RR Lyrae stars and found three new anomalous Cepheids. With period-magnitude and period-amplitude diagrams, we discuss the Oosterhoff classification of Draco. Contradictory results were found in that Draco appears to contain both Oosterhoff I and II type RR Lyrae populations.

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K. Kinemuchi, H. A. Smith, A. LaCluyze, C. L. Clark, H. C. Harris, N. Silbermann, L. A. Snyder. 2002-03-16. RR Lyrae Stars and Anomalous Cepheids in the Draco Dwarf Spheroidal Galaxy. https://arxiv.org/abs/astro-ph/0203261

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