Curvature Oscillations in Modified Gravity and High Energy Cosmic Rays

Abstract

It is shown that F(R)-modified gravitational theories lead to curvature oscillations in astrophysical systems with rising energy density. The frequency and the amplitude of such oscillations could be very high and would lead to noticeable production of energetic cosmic ray particles.

7 pages, 2 figures, author's affiliation is corrected

References in corpus (4)

• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
• Disappearing cosmological constant in f(R) gravity
• A Singularity Problem with f(R) Dark Energy

Cited by in corpus (10)

• Neutron Majorana mass from exotic instantons
• Jeans Instability in Classical and Modified Gravity
• Curvature Singularities from Gravitational Contraction in f(R) Gravity
• Cosmological acceleration
• Spherically Symmetric Solutions in F(R) Gravity and Gravitational Repulsion
• Particle Production in f(R) Gravity during Structure Formation
• Scalaron production in contracting astrophysical objects
• Gravitational instability in oscillating background
• No Cosmic Rays from Curvature Oscillations during Structure Formation with $F(R)$-gravity
• Cosmic ray production in modified gravity