Non-Gaussianity from Large-Scale Structure Surveys
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,...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2010/768675 |
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| author | Licia Verde |
| author_facet | Licia Verde |
| author_sort | Licia Verde |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-62707807f349438384ef4a2315e22acd |
| institution | Kabale University |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-62707807f349438384ef4a2315e22acd2025-02-03T01:25:03ZengWileyAdvances in Astronomy1687-79691687-79772010-01-01201010.1155/2010/768675768675Non-Gaussianity from Large-Scale Structure SurveysLicia Verde0Institució Catalana de Recerca i Estudis Avançat (ICREA) & Instituto de Ciencias del Cosmos, Universitat de Barcelona-IEEC (ICC-UB), Marti i Franques 1, 08028 Barcelona, SpainWith 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.http://dx.doi.org/10.1155/2010/768675 |
| spellingShingle | Licia Verde Non-Gaussianity from Large-Scale Structure Surveys Advances in Astronomy |
| title | Non-Gaussianity from Large-Scale Structure Surveys |
| title_full | Non-Gaussianity from Large-Scale Structure Surveys |
| title_fullStr | Non-Gaussianity from Large-Scale Structure Surveys |
| title_full_unstemmed | Non-Gaussianity from Large-Scale Structure Surveys |
| title_short | Non-Gaussianity from Large-Scale Structure Surveys |
| title_sort | non gaussianity from large scale structure surveys |
| url | http://dx.doi.org/10.1155/2010/768675 |
| work_keys_str_mv | AT liciaverde nongaussianityfromlargescalestructuresurveys |