The cosmic jerk parameter in f(R) gravity

Abstract

We derive the expression for the jerk parameter in $f(R)$ gravity. We use the Palatini variational principle and the field equations in the Einstein conformal gauge. For the particular case $f(R)=R-\frac{{\alpha }^2}{3R}$, the predicted value of the jerk parameter agrees with the SNLS SNIa and X-ray galaxy cluster distance data but does not with the SNIa gold sample data.

8 pages; published version

References in corpus (1)

• The matter power spectrum in f(R) gravity

Cited by in corpus (8)

• Limit to General Relativity in f(R) theories of gravity
• Cosmography of f(R) gravity
• f(R) gravity theories in Palatini formalism: cosmological dynamics and observational constraints
• Violation of the Equivalence Principle in Modified Theories of Gravity
• Density perturbations in f(R) gravity theories in metric and Palatini formalisms
• Dark energy, inflation and dark matter from modified F(R) gravity
• Interacting dark energy in $f(R)$ gravity
• The cosmic snap parameter in f(R) gravity