Mathematics – Logic
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21720404k&link_type=abstract
American Astronomical Society, AAS Meeting #217, #204.04; Bulletin of the American Astronomical Society, Vol. 43, 2011
Mathematics
Logic
Scientific paper
The Baryonic Acoustic Feature in galaxy clustering is one of the most exciting and promising cosmological distance measurements in modern cosmology. I present clustering measurements of the spherically averaged and radial acoustic features in the Luminous Red Galaxy (LRG) sample from the Sloan Digital Sky Survey (SDSS), as well as what might be expected in the (just begun) Baryonic Oscillation Spectroscopic Survey (BOSS).
I will also present results obtained from redshift distortions in galaxy clustering. As galaxies are observed in redshift-space, as opposed to real-space, peculiar velocities strongly affect the line-of-sight clustering signal. By quantifying these distortions, constraints on their progenitor, namely the matter density of the universe ΩM and the true underlying gravitational theory, may be obtained.
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