SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems

Details SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21113210w&link_type=abstract

American Astronomical Society, AAS Meeting #211, #132.10; Bulletin of the American Astronomical Society, Vol. 39, p.963

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Continuing the extraordinary legacy of the Sloan Digital Sky Survey (SDSS), SDSS-III will use the wide-field spectroscopic capabilities of the APO 2.5-meter telescope to carry out four surveys on three scientific themes: dark energy and cosmological parameters; the structure, dynamics, and chemical evolution of the Milky Way; and the structure of giant planet systems. The Baryon Oscillation Spectroscopic Survey (BOSS) will measure redshifts of 1.5 million luminous red galaxies and Lyman-alpha absorption towards 160,000 high redshift quasars. By using the baryon acoustic oscillation scale as a physically calibrated ruler, BOSS will determine the cosmic distance scale with percent-level precision at z=0.2-0.7 and z=2-3. SEGUE-2, an extension of the SDSS-II program SEGUE (Sloan Extension for Galactic Understanding and Exploration), will obtain optical spectra of 350,000 stars (resolution R=2,000, typical S/N=25) to probe the kinematics and chemical evolution of the outer Galaxy. The APO Galactic Evolution Experiment (APOGEE) will use high-resolution (R=20,000, S/N=100) H-band spectroscopy to penetrate interstellar dust obscuration, measuring radial velocities and detailed elemental abundance patterns of 100,000 red giant stars across the full range of the Galactic bulge, bar, disk, and halo. Together, SEGUE-2 and APOGEE will provide a picture of the Milky Way that is unprecedented in scope, richness, and detail. The Multi-Object APO Radial Velocity Exoplanet Large-area Survey (MARVELS) will use fiber-fed interferometric spectrographs to monitor the radial velocities of 11,000 bright stars with the precision and cadence needed to detect gas giant planets having orbital periods from several hours to two years. MARVELS will provide a critical statistical data set for testing theories of the formation and dynamical evolution of planetary systems. The six-year SDSS-III program (2008-2014) is international in scope, with participating institutions from the U.S., Europe, and Asia.

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