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Constraints on local primordial non-Gaussianity from large scale structure
Anze Slosar, Christopher Hirata, Uros Seljak +2
Recent work has shown that the local non-Gaussianity parameter f_NL induces a scale-dependent bias, whose amplitude is growing with scale. Here we first rederive this result within…
Correlation of CMB with large-scale structure: II. Weak lensing
Christopher M. Hirata, Shirley Ho, Nikhil Padmanabhan +2
We investigate the correlation of gravitational lensing of the cosmic microwave background (CMB) with several tracers of large-scale structure, including luminous red galaxies (LRG…
Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications
Shirley Ho, Christopher M. Hirata, Nikhil Padmanabhan +2
We cross-correlate large scale structure (LSS) observations from a number of surveys with CMB anisotropies from WMAP to investigate the Integrated Sachs-Wolfe (ISW) effect as a fun…