Detectability of the Effect of Inflationary Non-gaussianity on Halo Bias
نویسنده
چکیده
We consider the description of the clustering of halos for physically-motivated types of non-Gaussian initial conditions. In particular we include non-Gaussianity of the type arising from single field slowroll, multi fields, curvaton (local type), higher-order derivative-type (equilateral), vacuum-state modifications (enfolded-type) and horizon-scale GR corrections type. We show that large-scale halo bias is a very sensitive tool to probe non-Gaussianity, potentially leading, for some planned surveys, to a detection of non-Gaussianity arising from horizon-scale GR corrections. Subject headings: cosmology: theory, large-scale structure of universe — galaxies: clusters: general — galaxies: halos
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