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The Second-Generation Guide Star Catalog: Description and Properties
B. M. Lasker, M. G. Lattanzi, B. J. McLean +23
The GSC-II is an all-sky database of objects derived from the uncompressed DSS that the STScI has created from the Palomar and UK Schmidt survey plates and made available to the co…
Double-blind test program for astrometric planet detection with Gaia
S. Casertano, M. G. Lattanzi, A. Sozzetti +6
We use detailed simulations of the Gaia observations of synthetic planetary systems and develop and utilize independent software codes in double-blind mode to analyze the data, inc…
Testing Planet Formation Models with Gaia as Astrometry
A. Sozzetti, S. Casertano, M. G. Lattanzi +5
In this paper, we first summarize the results of a large-scale double-blind tests campaign carried out for the realistic estimation of the Gaia potential in detecting and measuring…
The GSC-II-based survey of ancient cool white dwarfs I. The sample of spectroscopically confirmed WDs
D. Carollo, B. Bucciarelli, S. T. Hodgkin +6
The GSC-II white dwarf survey was designed to identify faint and high proper motion objects, which we used to define a new and independent sample of cool white dwarfs. With this su…
Structure in the motions of the fastest halo stars
P. ReFiorentin, A. Helmi, M. G. Lattanzi +1
We have analyzed the catalog of 2106 non-kinematically selected metal poor stars in the solar neighborhood published by Beers et al. (2000), with the goal of quantifying the amount…
Structure of the Galactic Halo towards the North Galactic Pole
T. D. Kinman, A. Bragaglia, C. Cacciari +2
We have used RR Lyrae and Blue HB stars as tracers of the old Galactic halo, in order to study the halo structure and the galactic rotation as a function of height above the plane.…