Large Scale Structure in Bekenstein's Theory of Relativistic Modified Newtonian Dynamics
Physical Review Letters 96 (2006) 011301 4pp
Mining Approximate Motifs in Time Series
Chapter in Discovery Science, Springer Nature 4265 (2006) 89-101
Measuring the geometry of the universe in the presence of isocurvature modes.
Phys Rev Lett 95:26 (2005) 261303
Abstract:
The cosmic microwave background (CMB) anisotropy constrains the geometry of the Universe because the positions of the acoustic peaks of the angular power spectrum depend strongly on the curvature of three-dimensional space. In this Letter we exploit current observations to determine the geometry in the presence of isocurvature modes. Most previous analyses assumed that the primordial perturbations were adiabatic. A priori one might expect that allowing isocurvature modes would substantially degrade constraints on the curvature. We find, however, that with additional data sets, the geometry remains well constrained. When the most general isocurvature perturbation is allowed, the CMB alone can only poorly constrain the geometry to . Including large-scale structure data, one obtains Ohm(0) = 1.07 +/- 0.03, and 1.06 +/- 0.02 when supplemented by supernova data and the determination of H(0).Searching for isocurvature perturbations
NUCL PHYS B-PROC SUP 148 (2005) 7-15
Abstract:
We offer a pedagogical introduction to isocurvature cosmological perturbations and their detection or constraint using recent cosmic microwave background anisotropy and large-scale structure data. The status of the constraints imposed by the first year WMAP data is presented.Implications of the Cosmic Background Imager Polarization Data
(2005)