Large Scale Structure in the Sloan Digital Sky Survey

Authors:
M. Bernardi

Comments: 12 pages, 5 figures. To appear in “Carnegie Observatories
Astrophysics Series, Vol. 2: Measuring and Modeling the Universe”, ed. W. L.
Freedman

The primary observational goals of the Sloan Digital Sky Survey are to obtain
CCD imaging of 10,000 deg^2 of the north Galactic cap in five passbands, with a
limiting magnitude in the r-band of 22.5, to obtain spectroscopic redshifts of
10^6 galaxies and 10^5 quasars, and to obtain similar data for three ~ 200
deg^2 stripes in the south Galactic cap, with repeated imaging to allow
co-addition and variability studies in at least one of these stripes. The
resulting photometric and spectroscopic galaxy datasets allow one to map the
large scale structure traced by optical galaxies over a wide range of scales to
unprecedented precision. Results relevant to the large scale structure of our
Universe include: a flat model with a cosmological constant Omega_Lambda=0.7
provides a good description of the data; the galaxy-galaxy correlation function
shows departures from a power law which are statistically significant; and
galaxy clustering is a strong function of galaxy type.

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