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dc.contributor.author | Fernández-Cobos, R. | - |
dc.contributor.author | Vielva, Patricio | - |
dc.contributor.author | Pietrobon, D. | - |
dc.contributor.author | Balbi, A. | - |
dc.contributor.author | Martínez-González, Enrique | - |
dc.contributor.author | Barreiro, R. Belén | - |
dc.date.accessioned | 2015-02-03T10:34:57Z | - |
dc.date.available | 2015-02-03T10:34:57Z | - |
dc.date.issued | 2014 | - |
dc.identifier | doi: 10.1093/mnras/stu749 | - |
dc.identifier | e-issn: 1365-2966 | - |
dc.identifier | issn: 0035-8711 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society 441(3): 2392-2397 (2014) | - |
dc.identifier.uri | http://hdl.handle.net/10261/110110 | - |
dc.description.abstract | Several statistical anomalies in the cosmic microwave background (CMB) temperature anisotropies seem to defy the assumption of a homogeneous and isotropic universe. In particular, a dipole modulation has been detected both in WMAP and Planck data. We adapt the methodology proposed by Eriksen et al. on CMBdata to galaxy surveys, tracing the large-scale structure. We analyse the National Radio Astronomy Observatory (NRAO) and Very Large Array (VLA) Sky Survey data at a resolution of ~2° for three different flux thresholds: 2.5, 5.0 and 10.0 mJy, respectively. No evidence of a dipole modulation is found. This result suggests that the origin of the dipole asymmetry found in the CMB cannot be assigned to secondary anisotropies produced at redshifts around z=1. However, it could still have been generated at redshifts higher or lower, such as the integrated Sachs-Wolfe effect produced by the local structures. Other all-sky surveys, like the infrared WISE catalogue, could help to explore with a high sensitivity a redshift interval closer than the one probed with NVSS. © 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. | - |
dc.description.sponsorship | We acknowledge partial financial support from the Spanish Ministerio de Economía y Competitividad Projects HI2008-0129, AYA2010-21766-C03-01, AYA2012-39475-C02-01 and Consolider-Ingenio 2010 CSD2010-00064. RFC thanks financial support from Spanish CSIC for a JAE-predoc fellowship, cofinanced by the European Social Fund. | - |
dc.publisher | Oxford University Press | - |
dc.publisher | Royal Astronomical Society | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | Searching for a dipole modulation in the large-scale structure of the Universe | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1093/mnras/stu749 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1093/mnras/stu749 | - |
dc.date.updated | 2015-02-03T10:34:57Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | Consejo Superior de Investigaciones Científicas (España) | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003339 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
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Searching for a dipole modulation.pdf | 888,06 kB | Adobe PDF | Visualizar/Abrir |
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