526 citations · 6.5k across the 150 of their papers we have counts for
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Heavy elements abundances in turn-off stars and early subgiants in NGC 6752
G. James, P. Francois, P. Bonifacio +12
High resolution spectra (R > 40 000) for 9 main sequence turn-off stars and 9 subgiants in the globular cluster NGC 6752 were acquired with UVES on the VLT-Kueyen (UT2). These data…
A continuous population of variable stars up to about 1.5 mag above the horizontal branch?
L. Baldacci, G. Clementini, E. V. Held +2
Increasing samples of pulsating variable stars populating the classical instability strip from the horizontal branch to a few magnitudes brighter are being found in several Local G…
Distance Scale, Variable Stars and Stellar Populations in Local Group Galaxies
G. Clementini
We present an overview of our study of the short period variable stars in the Large Magellanic Cloud, and in the dwarf galaxies Fornax, Leo I, and NGC 6822. Light curves are presen…
NGC6822: short period variable stars, stellar population and distance scale
L. Baldacci, L. Rizzi, G. Clementini +2
Results are presented on a study of the short period variable stars in the dwarf irregular galaxy NGC6822. We observed an almost uniformely populated classical instability strip fr…
Image-Subtraction Photometry of the Globular Cluster M3: identification of new double-mode RR Lyrae stars
G. Clementini, T. M. Corwin, B. W. Carney +1
We have applied the image subtraction method to the M3 dataset previously analyzed by Corwin & Carney (2001; CC01). The new analysis produced light curves and periods for 15 variab…
Distances and ages of NGC 6397, NGC 6752 and 47 Tuc
Raffaele Gratton, Angela Bragaglia, Eugenio Carretta +4
Distances and absolute ages for the globular clusters NGC6397, NGC6752, and 47 Tuc are obtained using Main Sequence Fitting. Accurate reddenings and metal abundances (errors of 0.0…
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…
RR Lyrae and short-period variable stars in the dwarf irregular galaxy NGC 6822
G. Clementini, E. V. Held, L. Baldacci +1
We report the discovery of a large number of short-period variable stars in the dwarf irregular galaxy NGC6822, based on deep time-series imaging carried out with the ESO Very Larg…
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…
NGC6822: detection of variable stars with ISIS2.1
L. Baldacci, G. Clementini, E. V. Held +1
Preliminary results on the detection of a conspicuous number of variable stars in the dwarf irregular galaxy NGC 6822 are presented. We stress the need for packages specifically de…
The VSNG Project: variable stars in nearby galaxies
Gisella Clementini
We describe the VSNG Project, a collaboration between researchers of Bologna, Padova, Napoli and Merate Observatories, to study variable stars in a number of galaxies in the Local…
Globular Cluster Distances from RR Lyrae Stars
Carla Cacciari, Gisella Clementini
The most common methods to derive the distance to globular clusters using RR Lyrae variables are reviewed, with a special attention to those that have experienced significant impro…