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On the Space Time of a Galaxy

T. Matos·F. S. Guzman
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Abstract

We present an exact solution of the averaged Einstein's field equations in the presence of two real scalar fields and a component of dust with spherical symmetry. We suggest that the space-time found provides the characteristics required by a galactic model that could explain the supermassive central object and the dark matter halo at once, since one of the fields constitutes a central oscillaton surrounded by the dust and the other scalar field distributes far from the coordinate center and can be interpreted as a halo. We show the behavior of the rotation curves all along the background. Thus, the solution could be a first approximation of a ``long exposition photograph'' of a galaxy.

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T. Matos, F. S. Guzman. 2001-08-09. On the Space Time of a Galaxy. https://doi.org/10.1088/0264-9381%2F18%2F23%2F303

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