Mathematics – Logic
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21914318l&link_type=abstract
American Astronomical Society, AAS Meeting #219, #143.18
Mathematics
Logic
Scientific paper
The Cylindrical Radio Telescope (CRT) is designed to use the redshifted 21-cm line from HI to create a 3-D intensity map of the large scale structure of the universe. The goal is to measure the angular size of baryon acoustic oscillations (BAO) as a function of redshift. Using the angular diameter distance and redshifts the CRT can constrain the equation of state of the dark energy. In particular it can determine whether or not the dark energy is consistent with a cosmological constant. We plotted the distance-redshift relation for a variety of physically-motivated equations of state and compared them to a ΛCDM (concordance) model. The graphs indicate the accuracy with which the distances must be measured to constrain dark energy models. I thank the University of Wisconsin for allowing my participation in their astrophysics REU program and to the National Science Foundation and the U.S. Department of Defense through ASSURE for the funding through NSF Award AST-1004881.
Lewis Jeramy
Timbie Peter
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