Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/140515
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Arnalte-Mur, P. | - |
dc.contributor.author | Vielva, Patricio | - |
dc.contributor.author | Martínez, Vicente J. | - |
dc.contributor.author | Sanz, J. L. | - |
dc.contributor.author | Saar, Enn | - |
dc.contributor.author | Paredes, Silvestre | - |
dc.date.accessioned | 2016-11-21T13:15:39Z | - |
dc.date.available | 2016-11-21T13:15:39Z | - |
dc.date.issued | 2016 | - |
dc.identifier | doi: 10.1088/1475-7516/2016/03/005 | - |
dc.identifier | e-issn: 1475-7516 | - |
dc.identifier.citation | Journal of Cosmology and Astroparticle Physics 03: 005 (2016) | - |
dc.identifier.uri | http://hdl.handle.net/10261/140515 | - |
dc.description.abstract | We present a full description of the N-probability density function of the galaxy number density fluctuations. This N-pdf is given in terms, on the one hand, of the cold dark matter correlations and, on the other hand, of the galaxy bias parameter. The method relies on the assumption commonly adopted that the dark matter density fluctuations follow a local non-linear transformation of the initial energy density perturbations. The N-pdf of the galaxy number density fluctuations allows for an optimal estimation of the bias parameter (e.g., via maximum-likelihood estimation, or Bayesian inference if there exists any a priori information on the bias parameter), and of those parameters defining the dark matter correlations, in particular its amplitude (σ). It also provides the proper framework to perform model selection between two competitive hypotheses. The parameters estimation capabilities of the N-pdf are proved by SDSS-like simulations (both, ideal log-normal simulations and mocks obtained from Las Damas simulations), showing that our estimator is unbiased. We apply our formalism to the 7th release of the SDSS main sample (for a volume-limited subset with absolute magnitudes M -20). We obtain = 1.193 ± 0.074 and σ = 0.862 ± 0.080, for galaxy number density fluctuations in cells of the size of 30hMpc. Different model selection criteria show that galaxy biasing is clearly favoured. | - |
dc.publisher | Institute of Physics Publishing | - |
dc.rights | closedAccess | - |
dc.title | Joint constraints on galaxy bias and σ8 through the N-pdf of the galaxy number density | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1088/1475-7516/2016/03/005 | - |
dc.date.updated | 2016-11-21T13:15:39Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.relation.csic | Sí | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
Aparece en las colecciones: | (IFCA) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
3
checked on 22-abr-2024
WEB OF SCIENCETM
Citations
4
checked on 27-feb-2024
Page view(s)
272
checked on 24-abr-2024
Download(s)
98
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.