Detailed Information on Publication Record
2023
On photons and matter inversion spheres from complex super-spinars accretion structures
PUGLIESE, Daniela and Zdeněk STUCHLÍKBasic 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
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/47813059:19630/23:A0000283
Organization unit
Institute of physics in Opava
UT WoS
000957576400003
Keywords in English
black-hole accreation;3-D simulations;naked singularity;inner edge;disks;evolution;tori;instablities;stress;motion
Tags
International impact, Reviewed
Změněno: 16/1/2024 14:00, Mgr. Pavlína Jalůvková
Abstract
V originále
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.