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N-body simulations for f(R) gravity using a self-adaptive particle-mesh code

Zhao, G.; Li, B.; Koyama, K.

Authors

G. Zhao

K. Koyama



Abstract

We perform high-resolution N-body simulations for f(R) gravity based on a self-adaptive particle-mesh code MLAPM. The chameleon mechanism that recovers general relativity on small scales is fully taken into account by self-consistently solving the nonlinear equation for the scalar field. We independently confirm the previous simulation results, including the matter power spectrum, halo mass function, and density profiles, obtained by Oyaizu et al. [Phys. Rev. D 78, 123524 (2008)] and Schmidt et al. [Phys. Rev. D 79, 083518 (2009)], and extend the resolution up to k∼20  h/Mpc for the measurement of the matter power spectrum. Based on our simulation results, we discuss how the chameleon mechanism affects the clustering of dark matter and halos on full nonlinear scales.

Journal Article Type Article
Publication Date Feb 2, 2011
Deposit Date Jan 20, 2012
Publicly Available Date Jul 16, 2014
Journal Physical Review D
Print ISSN 1550-7998
Electronic ISSN 1550-2368
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 83
Issue 4
Article Number 044007
DOI https://doi.org/10.1103/physrevd.83.044007
Public URL https://durham-repository.worktribe.com/output/1521938

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