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25 April 2024

» arxiv » astro-ph/0507244

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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 ;
Date:	11 Jul 2005
Subject:	astro-ph
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.
Source:	arXiv, astro-ph/0507244
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