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

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

2009-10-09

arxiv.org/abs/0910.1792v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

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

Scientific paper

10.1007/s10714-009-0875-x

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.

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