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  Predictions of the pseudo-complex theory of Gravity for EHT observations – II: Theory and predictions

Hess, P. O., Boller, T., Müller, A., & Stöcker, H. (2019). Predictions of the pseudo-complex theory of Gravity for EHT observations – II: Theory and predictions. Monthly Notices of the Royal Astronomical Society: Letters, 485(1), L121-L125. doi:10.1093/mnrasl/slz040.

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Hess, P. O., Author
Boller, Th.1, Author              
Müller, A., Author
Stöcker, H., Author
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1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              

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 Abstract: We present a resumé on the modified theory of gravity, called pseudo-complex General Relativity (pc-GR). It is the second in a series of papers, where the first one (Boller et al. 2019; referred to as Paper I) discussed the observational consequences of pc-GR. In this paper, we concentrate on the underlying theory. PC-GR involves an algebraic extension of the standard theory of GR and it depends on two phenomenological parameters. An element included in pc-GR that is not present in standard GR is the energy–momentum tensor corresponding to an anisotropic ideal fluid, which we call dark energy. The two parameters are related to the coupling of mass to the dark energy and its fall-off as a function of r. The consequences and predictions of this theory will be discussed in the context of the observational results of the Even Horizon Telescope, expected soon. Our main result is that due to the accumulation of dark energy near a large mass, the modified theory predicts a dark ring followed by a bright ring in the emission profile of the accretion disc. We also discuss the light ring in the equatorial plane.

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 Dates: 2019-04-03
 Publication Status: Published online
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 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnrasl/slz040
Other: LOCALID: 3177243
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Title: Monthly Notices of the Royal Astronomical Society: Letters
  Other : Mon. Not. Roy. Astron. Soc.: Letters
Source Genre: Journal
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Publ. Info: Oxford : OXFORD UNIV PRESS
Pages: - Volume / Issue: 485 (1) Sequence Number: - Start / End Page: L121 - L125 Identifier: ISSN: 0035-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000021470