Astronomy and Astrophysics – Astronomy
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.4605k&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #46.05; Bulletin of the American Astronomical Society, Vol. 33, p.848
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Previous surveys have shown that the Draco dwarf spheroidal galaxy has a wealth of variable stars. We have conducted a new survey of variable stars in Draco, which approximately doubles the number of variables with known periods from that in Baade & Swope's pioneering work. The large majority of the Draco variables are RR Lyrae stars, including significant numbers of double-mode pulsators and stars showing the Blazhko effect. We have also identified additional anomalous Cepheid variables, allowing better definition of the anomalous Cepheid period-luminosity relation in Draco. The properties of the Draco variables and the relationship of Draco to the globular cluster Oosterhoff groups will be discussed. This work has been supported by the National Science Foundation.
Clark C. L.
Harris Hugh C.
Kinemuchi Karen
LaCluyze Aaron
Silbermann Nancy
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