Variable stars in Fornax dwarf spheroidal galaxy
Greco, C. · Clementini, G. · Held, E. V. · Poretti, E. · Catelan, M. · Dell'Arciprete, L. · Gullieuszik, M. · Maio, M. · Rizzi, L. · Smith, H. A. · Pritzl, B. J. · Rest, A. · De Lee, N.
Original · EN
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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