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93 papers · 1 filter
The last stand before MAP: cosmological parameters from lensing, CMB and galaxy clustering
Xiaomin Wang, Max Tegmark, Bhuvnesh Jain +1
Cosmic shear measurements have now improved to the point where they deserve to be treated on par with CMB and galaxy clustering data for cosmological parameter analysis, using the…
Opening of DNA double strands by helicases. Active versus passive opening
M. D. Betterton, F. Julicher
Helicase opening of double-stranded nucleic acids may be "active" (the helicase directly destabilizes the dsNA to promote opening) or "passive" (the helicase binds ssNA available d…
Some Applications of Fractional Equations
H. Weitzner, G. M. Zaslavsky
We present two observations related to theapplication of linear (LFE) and nonlinear fractional equations (NFE). First, we give the comparison and estimates of the role of the fract…
The Accelerated Universe and the Moon
Gia Dvali, Andrei Gruzinov, Matias Zaldarriaga
Cosmologically motivated theories that explain small acceleration rate of the Universe via modification of gravity at very large, horizon or super-horizon distances, can be tested…
The end of unified dark matter?
Havard Sandvik, Max Tegmark, Matias Zaldarriaga +1
Despite the interest in dark matter and dark energy, it has never been shown that they are in fact two separate substances. We provide the first strong evidence that they are separ…
The overdensities of galaxy environments as a function of luminosity and color
David W. Hogg, Michael R. Blanton, Daniel J. Eisenstein +9
We study the mean environments of galaxies in the Sloan Digital Sky Survey as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in $8 h^{-…