264 citations · 5.2k across the 123 of their papers we have counts for
12 papers · 1 filter
NGC 1817, NGC 2141, and Berkeley 81: three BOCCE clusters of intermediate age
P. Donati, G. Beccari, A. Bragaglia +2
In this paper we analyse the evolutionary status of three open clusters: NGC 1817, NGC 2141, and Berkeley 81. They are all of intermediate age, two are located in the Galactic anti…
Dwarfs walking in a row. The filamentary nature of the NGC3109 association
M. Bellazzini, T. Oosterloo, F. Fraternali +1
We re-consider the association of dwarf galaxies around NGC3109, whose known members were NGC3109, Antlia, Sextans A and Sextans B, based on a new updated list of nearby galaxies a…
Hα photometry of low mass stars in 47 Tucanae: chromospheric activity and exotica
G. Beccari, G. De Marchi, N. Panagia +1
We have used archival Hubble Space Telescope observations obtained with the Advanced Camera for Surveys to study the Hα emission properties of main sequence stars in the globular c…
Double Blue Straggler sequences in GCs: the case of NGC 362
E. Dalessandro, F. R. Ferraro, D. Massari +8
We used high-quality images acquired with the WFC3 on board the HST to probe the blue straggler star (BSS) population of the Galactic globular cluster NGC 362. We have found two di…
Deep multi-telescope photometry of NGC 5466. I. Blue Stragglers and binary systems
G. Beccari, E. Dalessandro, B. Lanzoni +4
We present a detailed investigation of the radial distribution of blue straggler star and binary populations in the Galactic globular cluster NGC 5466, over the entire extension of…
Photometric determination of the mass accretion rate of pre-main sequence stars. IV. Recent star formation in NGC 602
Guido De Marchi, Giacomo Beccari, Nino Panagia
We have studied the young stellar populations in NGC 602, in the Small Magellanic Cloud, using a novel method that we have developed to combine Hubble Space Telescope photometry in…
Accurate determination of accretion and photospheric parameters in Young Stellar Objects: the case of two candidate old disks in the Orion Nebula Cluster
C. F. Manara, G. Beccari, N. Da Rio +5
Current planet formation models are largely based on the observational constraint that protoplanetary disks have lifetime 3Myr. Recent studies, however, report the existence of PMS…
Star count density profiles and structural parameters of 26 Galactic globular clusters
P. Miocchi, B. Lanzoni, F. R. Ferraro +6
We used a proper combination of high-resolution HST observations and wide-field ground based data to derive the radial star density profile of 26 Galactic globular clusters from re…
The optical counterpart to the X-ray transient IGR J18245-2452 in the globular cluster M28
C. Pallanca, E. Dalessandro, F. R. Ferraro +3
We report on the identification of the optical counterpart to the recently detected INTEGRAL transient IGR J18245-2452 in the Galactic globular cluster M28. From the analysis of a…
UV observations of the globular cluster M10 from HST and GALEX. The BSS population
E. Dalessandro, F. R. Ferraro, B. Lanzoni +3
We present a combination of high-resolution Hubble Space Telescope and wide-field ground-based and Galaxy Evolution Explorer data of the Galactic Globular Cluster M10 (NGC6254). By…
Evidence for multiple populations in the massive globular cluster NGC 2419 from deep uVI LBT photometry
G. Beccari, M. Bellazzini, C. Lardo +5
We present accurate wide-field uVI photometry of the remote and massive Galactic globular cluster NGC 2419, aimed at searching for the u-V color spread along the Red Giant Branch (…
The strange case of NGC2419: stellar populations, chemical composition, dynamics
M. Bellazzini, A. Mucciarelli, R. A. Ibata +10
A few years ago we started an observational campaign aimed at the thorough study of the massive and remote globular cluster NGC2419. We have used the collected data, e.g., to test…