Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725216p&link_type=abstract
American Astronomical Society, AAS Meeting #217, #252.16; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
LSST will be a unique tool to study the universe of galaxies. The database will provide photometry for 1010 galaxies, from the Local Group to thousands of z>6 galaxies. It will provide structural measurements and 6-band photometry for about 109 galaxies, largely at z<1.5. The key goal of the LSST Galaxies Collaboration is to measure the multivariate properties of the galaxy population including trends with redshift and environment. This includes observed galaxy properties (luminosities, colors, sizes, and morphologies) as well as derived galaxy properties (stellar masses, ages, and star formation rates) and how the joint distribution of these galaxy properties depends on redshift and environment as measured on a wide range of scales. Galaxy formation is inherently stochastic, but is fundamentally governed by the statistical properties of the underlying dark-matter density field. Determining how the evolving multivariate galaxy properties and scaling relations depend on this density field, and on the distribution and evolution of dark matter halos, will connect the results of large surveys to theoretical models of structure formation and galaxy formation.
LSST Galaxies Collaboration
Ptak Andrew
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