Please use this identifier to cite or link to this item:
http://hdl.handle.net/2307/263
DC Field | Value | Language |
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dc.contributor.author | Grossi, Margherita | - |
dc.contributor.author | Verde, Licia | - |
dc.contributor.author | Carbone, Carmelita | - |
dc.contributor.author | Dolag, Klaus | - |
dc.contributor.author | Branchini, Enzo | - |
dc.contributor.author | Iannuzzi, Francesca | - |
dc.contributor.author | Matarrese, Sabino | - |
dc.contributor.author | Moscardini, Lauro | - |
dc.date.accessioned | 2010-07-08T08:26:13Z | - |
dc.date.available | 2010-07-08T08:26:13Z | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/2307/263 | - |
dc.description.abstract | The description of the abundance and clustering of haloes for non-Gaussian initial conditions has recently received renewed interest,motivated by the forthcoming large galaxy and cluster surveys, which can potentially yield constraints of the order of unity on the non-Gaussianity parameter f(NL). We present tests on N-body simulations of analytical formulae describing the halo abundance and clustering for non-Gaussian initial conditions. We calibrate the analytic non-Gaussian mass function of Matarrese, Verde & Jimenez and LoVerde et al. and the analytic description of clustering of haloes for non-Gaussian initial conditions on N-body simulations. We find an excellent agreement between the simulations and the analytic predictions if we make the corrections delta(c) -> delta(c)root q and delta(c) -> delta(c)q, where q similar or equal to 0.75, in the density threshold for gravitational collapse and in the non-Gaussian fractional correction to the halo bias, respectively. We discuss the implications of this correction on present and forecasted primordial non-Gaussianity constraints. We confirm that the non-Gaussian halo bias offers a robust and highly competitive test of primordial non-Gaussianity. | en |
dc.language.iso | en | en |
dc.publisher | Wiley-Blackwell Publishing, Inc | en |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.rights | c2009 Royal Astronomical Society ; c2009 The Autors. Journal compilation | en |
dc.subject | PRIMORDIAL NON-GAUSSIANITY | en |
dc.subject | DARK-MATTER HALOES | en |
dc.subject | EXCURSION SET MODEL | en |
dc.subject | ELLIPSOIDAL COLLAPSE | en |
dc.subject | INFLATIONARY MODELS | en |
dc.subject | GALAXY FORMATION | en |
dc.subject | EVOLUTION | en |
dc.subject | CLUSTERS | en |
dc.subject | FLUCTUATIONS | en |
dc.subject | CONSTRAINTS | en |
dc.title | Large-scale non-Gaussian mass function and halo bias: tests on N-body simulations | en |
dc.type | Article | en |
dc.subject.miur | Settori Disciplinari MIUR::Scienze fisiche::ASTRONOMIA E ASTROFISICA | en |
dc.subject.miur | Scienze fisiche | - |
dc.subject.isicrui | Categorie ISI-CRUI::Scienze fisiche | en |
dc.subject.isicrui | Scienze fisiche | - |
dc.subject.anagraferoma3 | Scienze fisiche | en |
dc.relation.volumenumber | 398 | en |
dc.relation.pagenumber | 321-332 | en |
dc.identifier.doi | 10.1111/j.1365-2966.2009.15150.x | - |
dc.relation.issuenumber | 1 | en |
dc.description.romatrecurrent | Dipartimento di Fisica 'Edoardo Amaldi' | * |
item.grantfulltext | restricted | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | other | - |
Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
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