Distinguishing f(R) gravity with cosmic voids

• DOI: 10.1017/s1743921316010632
• Publication Date: 2016-10-14T16:58:18Z
• Authors: P. Zivick; P. M. Sutter
• Keywords: Void (composites)

We use properties of void populations identified in N-body simulations to forecast the ability upcoming galaxy surveys differentiate models f(R) gravity from ΛCDM cosmology. analyze designed mimic densities, volumes, and clustering statistics surveys, using public VIDE toolkit. examine abundances as a basic probe at redshifts 1.0 0.4. find that stronger coupling strengths produce voids up ~20% larger radius, leading significant shift number function. As an initial estimate constraining power voids, we this change function constraint on strength $Δf_{R_{0}} = 10^{-5}$.