Probing Yukawian Gravitational Potential by Numerical Simulations. II. Elliptical Galaxies

Abstract

Since the Newtonian gravitation is largely used to model with success the structures of the universe, such as galaxies and clusters of galaxies, for example, a way to probe and constrain alternative theories, in the weak field limit, is to apply them to model the structures of the universe. We then modified the well known Gadget-2 code to probe alternative theories of gravitation through galactic dynamics. In particular, we modified the Gadget-2 code to probe alternatives theories whose weak field limits have a Yukawa-like gravitational potential. As a first application of this modified Gadget-2 code we simulate the evolution of elliptical galaxies. These simulations show that galactic dynamics can be used to constrain the parameters associated with alternative theories of gravitation.

6 pages, 5 figures - To appear in General Relativity and Gravitation

References in corpus (7)

• The cosmological simulation code GADGET-2
• Modeling feedback from stars and black holes in galaxy mergers
• Scalar-Tensor-Vector Gravity Theory
• Testing modified gravity with globular cluster velocity dispersions
• Fundamental parameter-free solutions in Modified Gravity
• A solution for galactic disks with Yukawian gravitational potential
• Potential-density pairs for axisymmetric galaxies: the influence of scalar fields

Cited by in corpus (3)

• Probing Brownstein-Moffat Gravity via Numerical Simulations
• Cosmological constant constraints from observation-derived energy condition bounds and their application to bimetric massive gravity
• A Recipe to Probe Alternative Theories of Gravitation via N-body Numerical Simulations. I. Spiral Galaxies