STRUCTURE FORMATION IN THE SYMMETRON MODEL
Journal Article
·
· Astrophysical Journal
- DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
- Institute of Theoretical Astrophysics, University of Oslo, 0315 Oslo (Norway)
Scalar fields, strongly coupled to matter, can be present in nature and still be invisible to local experiments if they are subject to a screening mechanism. The symmetron is one such mechanism that relies on restoration of a spontaneously broken symmetry in regions of high density to shield the scalar fifth force. We have investigated structure formation in the symmetron model by using N-body simulations and find observable signatures in both the linear and nonlinear matter power spectrum and on the halo mass function. The mechanism for suppressing the scalar fifth force in high-density regions is also found to work very well.
- OSTI ID:
- 22016143
- Journal Information:
- Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 748; ISSN ASJOAB; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Halo scale predictions of symmetron modified gravity
ENVIRONMENT DEPENDENCE OF DARK MATTER HALOS IN SYMMETRON MODIFIED GRAVITY
The Vainshtein mechanism in the cosmic web
Journal Article
·
Sat Dec 31 23:00:00 EST 2011
· Journal of Cosmology and Astroparticle Physics
·
OSTI ID:22280181
ENVIRONMENT DEPENDENCE OF DARK MATTER HALOS IN SYMMETRON MODIFIED GRAVITY
Journal Article
·
Mon Sep 10 00:00:00 EDT 2012
· Astrophysical Journal
·
OSTI ID:22092354
The Vainshtein mechanism in the cosmic web
Journal Article
·
Tue Jul 01 00:00:00 EDT 2014
· Journal of Cosmology and Astroparticle Physics
·
OSTI ID:22373429