期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 486, 期 3, 页码 3927-3941出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stz1051
关键词
galaxies: clusters; large-scale structure of Universe; neutrinos
资金
- DFG Cluster of Excellence 'Origin and Structure of the Universe'
- DFG Transregio programme TR33 'The Dark Universe'
- Italian Ministry for Education, University and Research (MIUR) through the SIR individual grant SIMCODE [RBSI14P4IH]
- MIUR PRIN 2015 'Cosmology and Fundamental Physics: illuminating the Dark Universe with Euclid'
- PRACE project SIMCODE1 [2016153604]
- Leibniz Supercomputing Centre (LRZ) [pr94ji]
- agreement ASI 'Attivit' a relative alla fase B2/C per la missione Euclid' [I/023/12/0]
We present a halo-mass function accurate over the full relevant Hu-Sawicki f(R) parameter space based on spherical collapse calculations and calibrated to a suite of modified gravity N-body simulations that include massive neutrinos. We investigate the ability of current and forthcoming galaxy cluster observations to detect deviations from general relativity while constraining the total neutrino mass and including systematic uncertainties. Our results indicate that the degeneracy between massive neutrino and modify gravity effects is a limiting factor for the current searches for new gravitational physics with clusters of galaxies, but future surveys will be able to break the degeneracy.
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