non-gaussianity from large-scale structure surveys
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ID: 223982
2010
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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.
| Reference Key |
verde2010advancesnon-gaussianity
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|---|---|
| Authors | ;Licia Verde |
| Journal | chemistry - a european journal |
| Year | 2010 |
| DOI |
10.1155/2010/768675
|
| URL | |
| Keywords |
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