7 papers · 1 filter
NGC1866: New analysis from HST-WFPC2 observations of the inner regions
E. Di Carlo, G. Raimondo, E. Brocato +2
We report new results on the LMC globular cluster NGC 1866 obtained by analyzing F555W and F814W images from WFPC2@HST. On the basis of the CMD we derive information on the cluster…
Some clues on the tilt of the Horizontal Branches in metal-rich clusters
G. Raimondo, V. Castellani, S. Cassisi +2
We discuss some clues on the large tilt observed in the Horizontal Branch of the metal-rich galactic globular clusters NGC 6388 and NGC 6441. This not yet understood feature is inv…
Surface Brightness Fluctuations: a theoretical point of view
M. Cantiello, G. Raimondo, E. Brocato +1
We present new theoretical evaluations of optical and near-IR Surface Brightness Fluctuations (SBF) magnitudes for single-burst stellar populations in the age range t=5-15 Gyr and…
Multifrequency observations of XTE J0421+560/CI Cam in outburst
F. Frontera, M. Orlandini, L. Amati +9
We report on two X-ray observations of the transient source XTE J0421+560 performed by BeppoSAX, and on a series of observations performed by the 0.7m Teramo-Normale Telescope. Out…
Very Low Mass Stars: From Observations to Theory and back
E. Brocato, S. Cassisi, V. Castellani
We briefly review the observational and theoretical investigations on Very Low Mass (VLM) stars. New evolutionary computations, extending toward the lower main sequence previous co…
Impact of SNIa on SED of high redshift galaxies
E. Brocato, S. Savaglio, G. Raimondo
We present preliminary results on the effects of SNIa explosions on the Spectral Energy Distribution (SED) of distant galaxies and the possible modifications which may occur in int…