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- University of Tennessee at KnoxvilleUS149 papers
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13 papers · 1 filter
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution
Hong Guo, Idit Zehavi, Zheng Zheng +40
We measure the luminosity and color dependence and the redshift evolution of galaxy clustering in the Sloan Digital Sky Survey-III Baryon Oscillation Spectroscopic Survey Ninth Dat…
Precision Measurement of The Most Distant Spectroscopically Confirmed Supernova Ia with the Hubble Space Telescope
D. Rubin, R. A. Knop, E. Rykoff +25
We report the discovery of a redshift 1.71 supernova in the GOODS North field. The Hubble Space Telescope (HST) ACS spectrum has almost negligible contamination from the host or ne…
f(T) gravity mimicking dynamical dark energy. Background and perturbation analysis
James B. Dent, Sourish Dutta, Emmanuel N. Saridakis
We investigate f(T) cosmology in both the background, as well as in the perturbation level, and we present the general formalism for reconstructing the equivalent one-parameter fam…
Cosmological perturbations in f(T) gravity
Shih-Hung Chen, James B. Dent, Sourish Dutta +1
We investigate the cosmological perturbations in f(T) gravity. Examining the pure gravitational perturbations in the scalar sector using a diagonal vierbien, we extract the corresp…
Three-Point Correlation Functions of SDSS Galaxies: Luminosity and Color Dependence in Redshift and Projected Space
Cameron K. McBride, Andrew J. Connolly, Jeffrey P. Gardner +5
The three-point correlation function (3PCF) provides an important view into the clustering of galaxies that is not available to its lower order cousin, the two-point correlation fu…
Big Bang nucleosynthesis with a stiff fluid
Sourish Dutta, Robert J. Scherrer
Models that lead to a cosmological stiff fluid component, with a density that scales as , where is the scale factor, have been proposed recently in a variety of c…