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Title: | Non-Gaussianity from large-scale structure surveys |
Author: | Verde, Licia |
Keywords: | Relativitat general (Física) Cosmologia General relativity (Physics) Cosmology |
Issue Date: | 2010 |
Abstract: | With the advent of galaxy surveys which provide large samples of galaxies or galaxy clusters over a volume comparable to the horizon size (SDSS-III, HETDEX, Euclid, JDEM, LSST, Pan-STARRS, CIP, etc.) or mass-selected large cluster samples over a large fraction of the extra-galactic sky (Planck, SPT, ACT, CMBPol, B-Pol), it is timely to investigate what constraints these surveys can impose on primordial non-Gaussianity. I illustrate here three different approaches: higher-order correlations of the three dimensional galaxy distribution, abundance of rare objects (extrema of the density distribution), and the large-scale clustering of halos (peaks of the density distribution). Each of these avenues has its own advantages, but, more importantly, these approaches are highly complementary under many respects. |
Note: | Reproducció del document publicat a: https://doi.org/10.1155/2010/768675 |
It is part of: | Advances In Astronomy, 2010, vol. 2010, num. 768675 |
URI: | http://hdl.handle.net/2445/114874 |
Related resource: | https://doi.org/10.1155/2010/768675 |
ISSN: | 1687-7969 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
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