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Constraining neutrino properties with a Euclidlike galaxy cluster survey  
Cerbolini, MCA; Sartoris, B; Xia JQ(夏俊卿); Xia, JQ; Biviano, A; Borgani, S; Viel, M  
2013  
Source Publication  JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 
ISSN  14757516 
Issue  6Pages:20 
Abstract  We perform a forecast analysis on how well a Euclidlike photometric galaxy cluster survey will constrain the total neutrino mass and effective number of neutrino species. We base our analysis on the Monte Carlo Markov Chains technique by combining information from cluster number counts and cluster power spectrum. We find that combining cluster data with Cosmic Microwave Background (CMB) measurements from Planck improves by more than an order of magnitude the constraint on neutrino masses compared to each probe used independently. For the Lambda CDM+m(v) model the 2 sigma upper limit on total neutrino mass shifts from Sigma m(v) < 0.35eV using cluster data alone to Sigma m(v) < 0.031eV when combined with Planck data. When a non standard scenario with Neff (sic) 3.046 number of neutrino species is considered, we estimate an upper limit of Neff < 3.14 (95%CL), while the bounds on neutrino mass are relaxed to Sigma m(v) < 0.040eV. This accuracy would be sufficient for a 2 sigma detection of neutrino mass even in the minimal normal hierarchy scenario (Sigma m(v) similar or equal to 0.05 eV). In addition to the extended Lambda CDM+ m(v) + Neff model we also consider scenarios with a constant dark energy equation of state and a nonvanishing curvature. When these models are considered the error on Sigma m(v) is only slightly affected, while there is a larger impact of the order of similar to 15% and similar to 20% respectively on the 2 sigma error bar of Neff with respect to the standard case. To assess the effect of an uncertain knowledge of the relation between cluster mass and optical richness, we also treat the Lambda CDM+ m(v) + Neff case with free nuisance parameters, which parameterize the uncertainties on the cluster mass determination. Adopting the overconservative assumption of no prior knowledge on the nuisance parameter the loss of information from cluster number counts leads to a large degradation of neutrino constraints. In particular, the upper bounds for Sigma m(v) are relaxed by a factor larger than two, Sigma m(v) < 0.083 eV (95%CL), hence compromising the possibility of detecting the total neutrino mass with good significance. We thus confirm the potential that a large optical/nearIR cluster survey, like that to be carried out by Euclid, could have in constraining neutrino properties, and we stress the importance of a robust measurement of masses, e.g. from weak lensing within the Euclid survey, in order to full exploit the cosmological information carried by such survey. 
Keyword  galaxy clusters cosmological parameters from LSS cosmological neutrinos neutrino masses from cosmology 
Subject Area  Astronomy & Astrophysics; Physics 
DOI  10.1088/14757516/2013/06/020 
Indexed By  SCI ; INSPIREHEP ; ADS 
Language  英语 
WOS ID  WOS:000321200100020 
ADS Bibcode  2013JCAP...06..020C 
ADS URL  https://ui.adsabs.harvard.edu/abs/2013JCAP...06..020C 
ADS CITATIONS  https://ui.adsabs.harvard.edu/abs/2013JCAP...06..020C/citations 
inspireid  1224204 
inspireURL  https://inspirehep.net/literature/1224204 
Citation statistics 
Cited Times:25 [INSPIRE]
Cited Times:25 [ADS]

Document Type  期刊论文 
Identifier  http://ir.ihep.ac.cn/handle/311005/224385 
Collection  中国科学院高能物理研究所 
Recommended Citation GB/T 7714  Cerbolini, MCA,Sartoris, B,Xia JQ,et al. Constraining neutrino properties with a Euclidlike galaxy cluster survey[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013(6):20. 
APA  Cerbolini, MCA.,Sartoris, B.,夏俊卿.,Xia, JQ.,Biviano, A.,...&Viel, M.(2013).Constraining neutrino properties with a Euclidlike galaxy cluster survey.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),20. 
MLA  Cerbolini, MCA,et al."Constraining neutrino properties with a Euclidlike galaxy cluster survey".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2013):20. 
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