791 citations · 4.6k across the 62 of their papers we have counts for
3 papers · 1 filter
Fraction of clear skies above astronomical sites: a new analysis from the GOES12 satellite
S. Cavazzani, S. Ortolani, V. Zitelli +1
Comparing the number of clear nights (cloud free) available for astronomical observations is a critical task because it should be based on homogeneous methodologies. Current data a…
Abundances for a large sample of red giants in NGC 1851: hints for a merger of two clusters?
E. Carretta, R. G. Gratton, S. Lucatello +8
We present the abundance analysis of a sample of more than 120 red giants in the globular cluster (GC) NGC 1851, based on FLAMES spectra. We find a small but detectable metallicity…
The end of the white dwarf cooling sequence in M 67
A. Bellini, L. R. Bedin, G. Piotto +21
In this paper, we present for the first time a proper-motion-selected white dwarf (WD) sample of the old Galactic open cluster M 67, down to the bottom of the WD cooling sequence (…