http://arxiv.org/abs/1812.08440
We present a resum\’e on the modified theory of gravity, called pseudo-complex General Relativity (pc-GR). The consequences and predictions of this theory will be discussed in the context of the possible observational results of the Even Horizon Telescope, expected soon. We compare our results to other recently published contributions. Our main result is that the modified theory predicts a dark ring followed by a bright ring in the emissivity profile of the accretion disc. Even when no disc exists, the same features will be present for a cloud of gas falling in. The results depend only on the orbital frequency of a particle in a circular orbit, as a function in r and do not depend on the type of accretion disc, i.e., the predictions are robust. We conclusively demonstrate that there is no light ring, defined as a photon geodesic orbit, and different from the orbits of particles, present for a spin parameter a larger than 0.5~m.
P. Hess, T. Boller, A. Mueller, et. al.
Fri, 21 Dec 18
68/72
Comments: 6 figures
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