The influence of non-minimally coupled scalar fields on the dynamics of interacting galaxies

Details The influence of non-minimally coupled scalar fields on the dynamics of interacting galaxies The influence of non-minimally coupled scalar fields on the dynamics of interacting galaxies

2009-07-16

arxiv.org/abs/0907.2900v1

Rev. Mex. Fis. S 53 (2) 54-57 (2007)

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

5 pages, 1 figure

Scientific paper

We study bar formation in galactic disks as a consequence of the collision of two spiral galaxies under the influence of a potential which is obtained from the Newtonian limit of a scalar--tensor theory of gravity. We found that dynamical effects depend on parameters ($\alpha$, $\lambda$) of the theory. In particular, we observe that the bar is shorter for weaker tidal perturbations, which in turn corresponds to smaller values of $\lambda$ used in our numerical experiments.

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