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http://hdl.handle.net/2445/131762
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DC Field | Value | Language |
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dc.contributor.author | Jiménez, Raúl (Jiménez Tellado) | - |
dc.contributor.author | Verde, Licia | - |
dc.date.accessioned | 2019-04-08T11:04:51Z | - |
dc.date.available | 2019-04-08T11:04:51Z | - |
dc.date.issued | 2009-12-18 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131762 | - |
dc.description.abstract | The recent weak-lensing measurement of the dark matter mass of the high-redshift galaxy cluster XMMUJ2235.3-2557 of ( 8.5 ± 1.7 ) × 10 14 M ⊙ at z = 1.4 , indicates that, if the cluster is assumed to be the result of the collapse of dark matter in a primordial Gaussian field in the standard lambda cold dark matter model, then its abundance should be < 2 × 10 − 3 clusters in the observed area. Here we investigate how to boost the probability of XMMUJ2235.3-2557, in particular, resorting to deviations from Gaussian initial conditions. We show that this abundance can be boosted by factors > 3 - 10 if the non-Gaussianity parameter f local NL is in the range 150-200. This value is comparable to the limit for f NL obtained by current constraints from the cosmic microwave background. We conclude that mass determination of high-redshift, massive clusters can offer a complementary probe of primordial non-Gaussianity. | - |
dc.format.extent | 4 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.80.127302 | - |
dc.relation.ispartof | Physical Review D, 2009, vol. 80, num. 12, p. 127302 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.80.127302 | - |
dc.rights | (c) American Physical Society, 2009 | - |
dc.source | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.classification | Cúmuls de galàxies | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.subject.other | Clusters of galaxies | - |
dc.title | Implications for primordial non-Gaussianity (fNL) from weak lensing masses of high-z galaxy clusters | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 603913 | - |
dc.date.updated | 2019-04-08T11:04:51Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
Files in This Item:
File | Description | Size | Format | |
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603913.pdf | 107.25 kB | Adobe PDF | View/Open |
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