Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-08-11
Astron.J.126:2048,2003
Astronomy and Astrophysics
Astrophysics
Scientific paper
10.1086/378365
We have embarked on a project, under the aegis of the Nearby Stars (NStars)/ Space Interferometry Mission Preparatory Science Program to obtain spectra, spectral types, and, where feasible, basic physical parameters for the 3600 dwarf and giant stars earlier than M0 within 40 parsecs of the sun. In this paper we report on the results of this project for the first 664 stars in the northern hemisphere. These results include precise, homogeneous spectral types, basic physical parameters (including the effective temperature, surface gravity and the overall metallicity, [M/H]) and measures of the chromospheric activity of our program stars. Observed and derived data presented in this paper are also available on the project's website at http://stellar.phys.appstate.edu/ .
Corbally Christopher J.
Garrison Robert F.
Gray Richard O.
McFadden Michael T.
Robinson Philip Ely
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