Nonlinear structure formation with the environmentally dependent dilaton

Brax, P.; van de Bruck, C.; Davis, A.-C.; Li, B.; Shaw, D.J.

Abstract

We have studied the nonlinear structure formation of the environmentally dependent dilaton model using N-body simulations. We find that the mechanism of suppressing the scalar fifth force in high-density regions works very well. Within the parameter space allowed by the solar-system tests, the dilaton model predicts small deviations of the matter power spectrum and the mass function from their ΛCDM counterparts. The importance of taking full account of the nonlinearity of the model is also emphasized.

Citation

Brax, P., van de Bruck, C., Davis, A., Li, B., & Shaw, D. (2011). Nonlinear structure formation with the environmentally dependent dilaton. Physical Review D, 83, Article 104026. https://doi.org/10.1103/physrevd.83.104026

• Journal Article Type: Article
• Publication Date: May 16, 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
• Article Number: 104026
• DOI: https://doi.org/10.1103/physrevd.83.104026