PUGLIESE, Daniela and Zdeněk STUCHLÍK. On photons and matter inversion spheres from complex super-spinars accretion structures. European Physical Journal C. New York (USA): SPRINGER, 2023, vol. 83, No 3, p. "242-1"-"242-32", 32 pp. ISSN 1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-023-11305-4.
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Basic information
Original name On photons and matter inversion spheres from complex super-spinars accretion structures
Authors PUGLIESE, Daniela (380 Italy, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution).
Edition European Physical Journal C, New York (USA), SPRINGER, 2023, 1434-6044.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/23:A0000283
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1140/epjc/s10052-023-11305-4
UT WoS 000957576400003
Keywords in English black-hole accreation;3-D simulations;naked singularity;inner edge;disks;evolution;tori;instablities;stress;motion
Tags RIV24, UF
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 16/1/2024 14:00.
Abstract
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 (u0 = 0) 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.
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