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CMBPol Mission Concept Study: Probing Inflation with CMB Polarization
Daniel Baumann, Mark G. Jackson, Peter Adshead +56
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measu…
Scale-dependent bias induced by local non-Gaussianity: A comparison to N-body simulations
Vincent Desjacques, Uros Seljak, Ilian T. Iliev
We investigate the effect of primordial non-Gaussianity of the local f_NL type on the auto- and cross-power spectrum of dark matter haloes using simulations of the LCDM cosmology.…
How to measure redshift-space distortions without sample variance
Patrick McDonald, Uros Seljak
We show how to use multiple tracers of large-scale density with different biases to measure the redshift-space distortion parameter beta=f/b=(dlnD/dlna)/b (where D is the growth ra…
Measuring primordial non-gaussianity without cosmic variance
Uros Seljak
Non-gaussianity in the initial conditions of the universe is one of the most powerful mechanisms to discriminate among the competing theories of the early universe. Measurements us…
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…
Halo mass - concentration relation from weak lensing
Rachel Mandelbaum, Uros Seljak, Christopher M. Hirata
We perform a statistical weak lensing analysis of dark matter profiles around tracers of halo mass from galactic- to cluster-size halos. In this analysis we use 170,640 isolated ~L…