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Abundances for metal-poor stars with accurate parallaxes , I. Basic data
We present element-to-element abundance ratios measured from high dispersion spectra for 150 field subdwarfs and early subgiants with accurate Hipparcos parallaxes (errors <20%). For 50 stars newExpand
Stellar Archaeology: A Keck Pilot Program on Extremely Metal-Poor Stars From the Hamburg/ESO Survey. III. The Lead (Pb) Star HE 0024−2523* **
We present a detailed abundance analysis, including spectral syntheses, of a very metal-poor ([Fe/H] -2.7) peculiar main-sequence star (HE 0024-2523) detected during the course of the Keck PilotExpand
Stellar Archaeology: a Keck Pilot Program on Extremely Metal-Poor Stars from the Hamburg/ESO Survey. II. Abundance Analysis
We present a detailed abundance analysis of 8 stars selected as extremely metal poor candidates from the Hamburg/ESO Survey (HES). For comparison, we have also analysed 3 extremely metal-poorExpand
Abundances for metal-poor stars with accurate parallaxes - II. $\alpha-$elements in the halo
Abundances for α−elements and Fe in about 150 field subdwarfs and early subgiants with accurate parallaxes and kinematic data are used to discuss the run of abundance ratios in metal-poor stars inExpand
Abundances of light elements in metal-poor stars. III. Data analysis and results
We present the analysis of an extensive set of new and literature high quality data concerning Fe, C, N, O, Na, and Mg, exploiting the Teff scale determined in Gratton et al. (1996), and the non-LTEExpand
Abundances Of Light Elements In Metal-Poor Stars IV. Fe/O And Fe/Mg Ratios And The History Of Star Formation In The Solar Neighborhood
The accurate O, Mg and Fe abundances derived in previous papers of this series from a homogeneous reanalysis of high quality data for a large sample of stars are combined with stellar kinematics inExpand
Evaluation of Italian astronomical production: 2010-2012
The purpose of this document is to present a few statistics about the role of Italian astronomy, focusing on the production by INAF (Istituto Nazionale di Astrofisica). Data are presented but veryExpand
Activity of OU6, PCS: E-ELT Planet Finder.
We describe the activities of the T-Rex Operating Unit (OU) 6, related to the Planet Finder instrument PCS for the E-ELT. They included the update of the science case of PCS, and in particular theExpand
Women in Italian astronomy
This document gives some quantitative facts about the role of women in Italian astronomy. More than 26% of Italian IAU members are women: this is the largest fraction among the world leadingExpand
A decline and fall in the future of Italian Astronomy
On May 27th 2010, the Italian astronomical community learned with concern that the National Institute for Astrophysics (INAF) was going to be suppressed, and that its employees were going to beExpand