LSST Cosmological Probes

Details LSST Cosmological Probes LSST Cosmological Probes

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21540113s&link_type=abstract

American Astronomical Society, AAS Meeting #215, #401.13; Bulletin of the American Astronomical Society, Vol. 42, p.219

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Scientific paper

The final LSST catalog will include six-band (ugrizy) photometry and shape information for several billion galaxies filling a huge volume of space and providing unparalleled insight into the distribution of dark matter and baryons from the nearby universe out to Gpc scales. The richness of this data will allow for a number of different techniques (weak lensing, BAO, cross-correlations, galaxy cluster, supernovae, etc.) to be used simultaneously and over several photometric redshift slices. This will provide crucial interlocking cross checks on each of the individual measurements, reducing the overall sensitivity to systematic errors and tightening the resulting cosmological constraints. More generally, the statistical power of this data set will allow us to go beyond merely constraining the standard LCDM cosmology and test for more exotic possibilities like modifications to General Relativity or spatial and redshift variations in dark energy. This poster summarizes the current best estimates for how well LSST will address each of these questions.

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