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http://hdl.handle.net/2445/127562
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DC Field | Value | Language |
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dc.contributor.author | Gil Marín, Héctor | - |
dc.contributor.author | Wagner, Christian | - |
dc.contributor.author | Fragkoudi, Frantzeska | - |
dc.contributor.author | Jiménez, Raúl (Jiménez Tellado) | - |
dc.contributor.author | Verde, Licia | - |
dc.date.accessioned | 2019-01-23T12:47:53Z | - |
dc.date.available | 2019-01-23T12:47:53Z | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 1475-7516 | - |
dc.identifier.uri | http://hdl.handle.net/2445/127562 | - |
dc.description.abstract | In this paper we present an improved fitting formula for the dark matter bispectrum motivated by the previous phenomenological approach of ref. [1]. We use a set of LCDM simulations to calibrate the fitting parameters in the k-range of 0.03 h/Mpc ≤ k ≤ 0.4 h/Mpc and in the redshift range of 0 ≤ z ≤ 1.5. This new proposed fit describes well the BAO-features although it was not designed to. The deviation between the simulations output and our analytic prediction is typically less than 5% and in the worst case is never above 10%. We envision that this new analytic fitting formula will be very useful in providing reliable predictions for the non-linear dark matter bispectrum for LCDM models. | - |
dc.format.extent | 17 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Physics (IOP) | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1088/1475-7516/2012/02/047 | - |
dc.relation.ispartof | Journal of Cosmology and Astroparticle Physics, 2012, vol. 02, num. 047 | - |
dc.relation.uri | https://doi.org/10.1088/1475-7516/2012/02/047 | - |
dc.rights | (c) IOP Publishing and Sissa Medialab, 2012 | - |
dc.source | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) | - |
dc.subject.classification | Cosmologia | - |
dc.subject.classification | Matèria fosca (Astronomia) | - |
dc.subject.classification | Galàxies | - |
dc.subject.other | Cosmology | - |
dc.subject.other | Dark matter (Astronomy) | - |
dc.subject.other | Galaxies | - |
dc.title | An improved fitting formula for the dark matter bispectrum | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 606099 | - |
dc.date.updated | 2019-01-23T12:47:53Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/226354/EU//HERMIONE | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/240117/EU//PHYS.LSS | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
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606099.pdf | 689.18 kB | Adobe PDF | View/Open |
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