期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 524, 期 4, 页码 5050-5059出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stad2190
关键词
gravitational lensing; weak - cosmological parameters - large-scale structure of Universe - cosmology; theory
We constrain the ?CDM cosmological parameter s(8) by applying the extreme value statistics on the AMICO KiDS-DR3 catalogue. By considering the likelihood of observing the largest cluster mass value in a sample of N-obs = 3644 clusters, we obtain s(8) = 0 . 90( + 0 .20) (-0.18), consistent with previous measurements and results from cluster cosmology. This method could be further improved by applying it to future missions like Euclid and LSST.
We constrain the ?CDM cosmological parameter s(8) by applying the extreme value statistics for galaxy cluster mass on the AMICO KiDS-DR3 catalogue. We sample the posterior distribution of the parameters by considering the likelihood of observing the largest cluster mass value in a sample of N-obs = 3644 clusters with intrinsic richness ?(*) > 20 in the redshift range z ? [0.10, 0.60]. We obtain s(8) = 0 . 90( + 0 .20) (-0.18), consistent within 1s with the measurements obtained by the Planck collaboration and with previous results from cluster cosmology exploiting AMICO KiDS-DR3. The constraints could improve by applying this method to forthcoming missions, such as Euclid and LSST, which are expected to deliver thousands of distant and massive clusters.
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