Št. zadetkov: 48
Izvirni znanstveni članek
Oznake:
gravity;rotating black hole;general relativity;particle dynamics;geodesic motion;
The dynamics of a charged particle moving around a slowly rotating Kerr black hole in the presence of an external magnetic field is investigated. We are interested in exploring the conditions under which the charged particle can escape from the gravitational field of the black hole after colliding w ...
Leto:
2014
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
modified gravity;scalar-tensor-vector theory;black hole;particle dynamics;magnetic field;
We investigate the dynamics of a neutral and a charged particle around a black hole in modified gravity immersed in a magnetic field. Our focus is on the scalar-tensor-vector theory as modified gravity. We are interested in exploring the conditions on the energy of the particle under which it can es ...
Leto:
2015
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
cosmology;black hole;magnetic field;particle dynamics;
In this paper, geodesic motion of the charged particles in the vicinity of event horizon of Schwarzschild anti-de-Sitter black hole (BH) with topological defects has been investigated. Weakly magnetized environment is considered in the surrounding of BH which only effects the motion of the particles ...
Leto:
2020
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
modified gravity;black hole;innermost stable circular orbit;jets;
The dynamics of charged particle in the vicinity of event horizon of a rotating charged black hole (BH) with gravitomagnetic charge from a class of vector-tensor theories of modified gravity immersed in an axially symmetric magnetic field (Bfield) has been studied. The presence of Bfield reduces the ...
Leto:
2019
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
high energy astrophysics;neutrino astronomy;gamma-ray astronomy;galaxy clusters;coma cluster;perseus cluster;
The origin of diffuse neutrinos and γ rays is unknown, and galaxy clusters hosting active galactic nuclei and starburst galaxies are the most probable sources of these cosmic messengers. In this work, we investigate the diffuse γ-ray and neutrino emission from the Virgo, Perseus, and Coma clusters u ...
Leto:
2026
Vir:
Univerza v Novi Gorici (UNG)
Objavljeni znanstveni prispevek na konferenci
Oznake:
galaxy clusters;AGN;cosmic-rays;neutrinos;gamma-rays;
We calculate the high-energy gamma-ray and neutrino emissions from galaxy clusters like Perseus that host active galactic nuclei (AGNs). Our primary objective is to distinguish the emission from the central source, such as NGC1275, from the diffuse emission originating in the outskirts of the Perseu ...
Leto:
2025
Vir:
Univerza v Novi Gorici (UNG)
Izvirni znanstveni članek
Oznake:
gravity;black hole;dark matter;magnetic field;particle dynamics;
We have investigated the dynamics of a neutral and a charged particle around a static and spherically symmetric black hole in the presence of quintessence matter and external magnetic field. We explore the conditions under which the particle moving around the black hole could escape to infinity afte ...
Leto:
2015
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
cosmology;charged black hole;magnetic field;geodesic motion;
Considering the geometry of Reissner-Nordström (RN) black hole immersed in magnetic field, we have studied the dynamics of neutral and charged particles. A collision of particles in the inner stable circular orbit is considered and the conditions for the escape of colliding particles from the vicini ...
Leto:
2015
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
gravity;black holes;quasinormal modes;mergers;particle dynamics;
We are going to investigate the geodesic motion of charged particles in the vicinity of Schwarzschild anti-de-Sitter (S-AdS) spacetime with topological defects that admit temporal perturbation. We used the approximate Noether symmetry equation to insert the time conformal factor in the black hole wi ...
Leto:
2023
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
pulsar wind nebulae;neutrinos;gamma-rays;multimessenger astronomy;
In this work, we provide a phenomenological description of the population of galactic TeV pulsar wind nebulae (PWNe) based on suitable assumptions for their space and luminosity distribution. We constrain the general features of this population by assuming that it accounts for the majority of bright ...
Leto:
2023
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)