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Variable stars as tracers of stellar populations in Local Group galaxies: Leo I and NGC 6822
L. Baldacci, F. Matonti, L. Rizzi +5
Results are presented of a study of the variable star populations in the dwarf spheroidal galaxy Leo I and in the dwarf irregular galaxy NGC 6822, based on time series photometry o…
Distance scale and variable stars in Local Group Galaxies: LMC and Fornax
M. Maio, L. Baldacci, G. Clementini +10
We briefly review our photometric and spectroscopic study of RR Lyrae variable stars in the bar of the Large Magellanic Cloud (LMC), that allowed us to reconcile the so-called "sho…
Variable Stars in the LMC: the Photometric Catalogue
M. Maio, G. Clementini, A. Bragaglia +3
New B, V, I photometry was obtained for a sample of 152 variables (125 RR Lyrae's, 4 anomalous Cepheids, 11 classical Cepheids, 11 eclipsing binaries and a delta Scuti star) in two…
CMD's, RR Lyrae's, clump stars and reddening in the LMC
G. Clementini, A. Bragaglia, M. Maio +3
We present new B, V, I photometry in the standard Johnson-Cousins photometric system of two regions near the bar of the Large Magellanic Cloud (LMC), one of which is very close to…
Distance to the Large Magellanic Cloud: the RR Lyrae stars
G. Clementini, R. G. Gratton, A. Bragaglia +3
(abridged) New photometry and spectroscopy for more than a hundred RR Lyrae stars in two fields located close to the bar of the Large Magellanic Cloud (LMC) are used to derive new…
Light curves and metal abundances of RR Lyrae variables in the bar of the Large Magellanic Cloud
G. Clementini, A. Bragaglia, E. Carretta +2
The Large Magellanic Cloud (LMC) is widely considered a corner-stone of the astronomical distance scale, however a difference of 0.2-0.3 mag exists in its distance as predicted by…