https://doi.org/10.1140/epjc/s10052-023-11305-4
Regular Article - Theoretical Physics
On photons and matter inversion spheres from complex super-spinars accretion structures
Research Centre for Theoretical Physics and Astrophysics, Institute of Physics, Silesian University in Opava, Bezručovo náměstí 13, 74601, Opava, Czech Republic
a
daniela.pugliese@physics.slu.cz
Received:
10
November
2022
Accepted:
5
February
2023
Published online:
22
March
2023
Our analysis focus on the dragging effects on the accretion flows and jet emission in Kerr super-spinars. These attractors are characterized by peculiar accretion structures as double tori, or special dragged tori in the ergoregion, produced by the balance of the hydrodynamic and centrifugal forces and also effects of super-spinars repulsive gravity. We investigate the accretion flows, constituted by particles and photons, from toroids orbiting a central Kerr super-spinar. As results of our analysis, in both accretion and jet flows, properties characterizing these geometries, that constitute possible strong observational signatures or these attractors, are highlighted. We found that the flow is characterized by closed surfaces, defining inversion coronas (spherical shell), with null the particles flow toroidal velocity (
) embedding the central singularity. We proved that this region distinguishes proto-jets and accretion driven flows, co-rotating and counter-rotating flows. Therefore in both cases the flow carries information about the accretion structures around the central attractor, demonstrating that inversion points can constitute an observational aspect capable of distinguishing the super-spinars.
The original online version of this article was revised. Eq. 9 and Eq. 10 have been updated.
An erratum to this article is available online at https://doi.org/10.1140/epjc/s10052-023-11426-w.
Copyright comment corrected publication 2023
© The Author(s) 2023. corrected publication 2023
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