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arXiv · astro-ph/0507244

Variable stars in Fornax dwarf spheroidal galaxy

C. Greco·G. Clementini·E. V. Held·E. Poretti·M. Catelan·L. Dell'Arciprete·M. Gullieuszik·M. Maio·L. Rizzi·H. A. Smith·B. J. Pritzl·A. Rest·N. De Lee
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Abstract

We present the first results of a variable star search in the field and in the globular clusters of the Fornax dwarf spheroidal galaxy. Variable stars were identified using the Image Subtraction Technique (Alard 2000) on time-series data obtained with the ESO 2.2 m and the Magellan 6.5 m telescopes. The variable star sample includes RR Lyrae stars, Dwarf Cepheids and Anomalous Cepheids. The pulsation properties (namely: periods, light curves, period-amplitude relations and classification in Oosterhoff types) of Fornax variables from the present study are discussed in some detail.

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C. Greco, G. Clementini, E. V. Held, E. Poretti, M. Catelan, L. Dell'Arciprete, M. Gullieuszik, M. Maio, L. Rizzi, H. A. Smith, B. J. Pritzl, A. Rest, N. De Lee. 2005-07-11. Variable stars in Fornax dwarf spheroidal galaxy. https://arxiv.org/abs/astro-ph/0507244

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