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Paper: Mapping the Galaxy with Photometric Surveys: Insights from SDSS and Future Prospects
Volume: 419, Galaxy Evolution: Emerging Insights and Future Challenges
Page: 103
Authors: Juric´, M.; Ivezic´, Z.
Abstract: The Sloan Digital Sky Survey (SDSS) produced accurate, multi-band, deep photometric sample of ∼108 stars over about one quarter of the sky. These measurements enabled photometric metallicity estimates for F and G stars accurate to ∼0.2 dex, as well as estimates of proper motions from astrometric comparison with the Palomar Observatory Sky Survey, accurate to about 3–5 mas/yr. For main sequence stars, photometric distance estimates are sufficiently precise (∼10%) to directly map their three-dimensional distribution out to distances of ∼15 kpc, making this data set an exquisite tool for Galactic structure studies. We summarize the key results and lessons of recent SDSS efforts in this area (Juric´ et al. 2008, Ivezic´ et al. 2008), and discuss what further progress can be expected from the Large Synoptic Survey Telescope (LSST). LSST will obtain similar imaging data as SDSS, but to about 5 magnitudes deeper limit and over twice as large sky area.
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