articleThe Astronomical JournalApr 7, 2009BRONZE OA

SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g = 14-20

Fermi National Accelerator Laboratory · University of California, Santa Cruz · +34 more institutions

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Abstract

The Sloan Extension for Galactic Understanding and Exploration (SEGUE) Survey obtained ≈240,000 moderateresolution (R ~ 1800) spectra from 3900 Å to 9000 Å of fainter Milky Way stars (14.0 < g < 20.3) of a wide
\nvariety of spectral types, both main-sequence and evolved objects, with the goal of studying the kinematics and
\npopulations of our Galaxy and its halo. The spectra are clustered in 212 regions spaced over three quarters of the
\nsky. Radial velocity accuracies for stars are σ(RV) ~ 4 km s^(−1) at g < 18, degrading to σ(RV) ~ 15 km s^(−1)
\nat g ~ 20. For stars with signal-to-noise ratio >10 per resolution element, stellar atmospheric parameters are estimated, including…

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