The stellar population of the solar neighborhood is obviously of special interest for an observer at Earth. Nearby stars afford the best opportunity to study the physics of stellar interiors and atmospheres of late-type main-sequence stars, which are predominant in the Milky Way and similar galaxies. However, we are far from fully exploiting the tremendous amount of information that present-day telescopes and instruments can provide for the nearest stars.
Since the advent of Hipparcos it is possible to identify those stars that are truly nearby, and so define complete and volume-limited samples. S4N provides ground-based high-resolution optical spectroscopy for 118 stars in the inmediate solar neighborhood.
All the data were collected by the end of 2001
from McDonald Observatory, and ESO. Point your
browser to the data
section to access the spectra.
The following paper provides details of the
data acquisition and reduction, as well as an analysis of the
kinematics and chemical abundances:
Spectroscopic Survey of Stars in the solar Neighborhood
C. Allende Prieto, P. S. Barklem, D. L. Lambert and K. Cunha 2004, A&A, in press
E-tables: ReadMe table5 table6 table7