Bibcode
Majewski, Steven R.; Skrutskie, M. F.; Schiavon, R. P.; Wilson, J. C.; O'Connell, R. W.; Smith, V. V.; Shetrone, M.; Cunha, K.; Frinchaboy, P. M.; Reid, I. N.; Allende Prieto, C.; Eisenstein, D.; Indebetouw, R.; Nelson, M. J.; Patterson, R. J.; Rood, R. T.; Beers, T.; Bullock, J.; Crane, J. D.; Geisler, D.; Hawley, S. L.; Holtzman, J.; Johnston, K. V.; McWilliam, A.; Munn, J. A.; Spergel, D. N.; Weinberg, D.; Weinberg, M.
Referencia bibliográfica
American Astronomical Society, AAS Meeting #211, #132.08; Bulletin of the American Astronomical Society, Vol. 39, p.962
Fecha de publicación:
12
2007
Número de citas
9
Número de citas referidas
9
Descripción
APOGEE is a large-scale, NIR, high-resolution (R 20,000) spectroscopic
survey of Galactic stars, and is one of the four experiments in the
SDSS-III suite. APOGEE will provide, by orders of magnitude, the largest
uniform database of chemical abundances, spectroscopic parallaxes and
kinematics for Galactic stars across the bulge, disk, and halo. The
survey will be conducted with a dedicated, 300-fiber, cryogenic,
spectrograph operating in the H-band, to be built at the University of
Virginia. APOGEE will use approximately half of the time on 150 bright
nights each year during a three-year period to observe, at high S/N, of
order 100,000 giant stars selected directly from 2MASS down to a flux
limit of H 13.5. Many of the targets will be located in the inner
Galaxy, towards the Galactic bulge/bar and disk, often in regions never
accessed by optical observations. With its high resolution and S/N,
APOGEE will determine, for a vast sample, accurate abundance patterns,
spanning numerous chemical species, and precision radial velocities,
with better than 0.5 km/s accuracy. Some of the scientific objectives of
this survey are to (1) provide extensive chemodynamical data on the
inner Galaxy (thin/thick disk, bar/bulge, low latitude halo
substructure) sufficient to constrain formation/evolution models, (2)
place constraints on the first stars from unbiased metallicity
distribution functions of these stellar populations, (3) constrain and
understand physical processes of star formation, feedback, mixing in the
formation of the Galaxy, (4) survey the dynamics of the bulge and disk,
and place constraints on the nature and influence of the Galactic bar
and spiral arms, (5) attempt to isolate what portion of the disk and
bulge come from accretion versus formation in situ.