SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g = 14-20
Fermi National Accelerator Laboratory · University of California, Santa Cruz · +34 more institutions
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…
Citation impact
- FWCI
- 39.62
- Percentile
- 100%
- References
- 141
Authors
108Topics & keywords
- Physics
- Stars
- Milky Way
- Astrophysics
- Metallicity
- Surface gravity
- Sky
- Photometry (optics)
Funding
- NSNational Science FoundationAward: PHY 02-16783
- UDU.S. Department of Energy
- NANational Aeronautics and Space AdministrationAward: 13057
- APAlfred P. Sloan Foundation
- PUPrinceton University
- OSOhio State University
- UOUniversity of Washington
- JHJohns Hopkins University
- UOUniversity of Pittsburgh
- CWCase Western Reserve University
- DUDrexel University
- UBUniversität Basel
- UOUniversity of Portsmouth
- NMNew Mexico State University
- UOUniversity of Cambridge
- CAChinese Academy of Sciences
- MMax-Planck-Gesellschaft
- MFMax-Planck-Institut für Astronomie
- SAScience and Technology Facilities CouncilAwards: ST/F002599/1, PP/E001068/1, PP/E00105X/1
- UNU.S. Naval Observatory
- FFermilab
- LALos Alamos National Laboratory