Description
Chairman: Kateřina Klimovičová
Supermassive black holes (SMBHs) are among the most powerful energy sources in the Universe due to enormous energy stored in their spins. However, efficient extraction of this mechanical energy requires interactions of SMBHs with magnetic fields of external origin. In this talk I will discuss the role of black hole spin and magnetic field on the acceleration of charged matter for chosen 25...
The observations in the near-infrared domain revealed that old bright late-type stars have a flat to a decreasing surface-density profile, which is in contrast to the cusp-like distribution of young OB/Wolf-Rayet stars. The core-like distribution of bright red giants is apparent from the decrease in the strength of the CO bandhead as well as from the stellar number counts. More recently, it...
The origin of Ultra High Energy Cosmic Rays is still unknown, and Active Galactic Nuclei (AGN) have been proposed as candidates to accelerate these particles. The aim of our work is to test the model of the particle acceleration in the hotspots of the AGNs. Using the multi-wavelength data of radiogalaxy 3C 105 S we calculate the maximum achievable energy of the cosmic rays through via the...