PUBLICATIONS OF THE ASTRONOMICAL OBSERVATORY OF BELGRADE 107, Page 139-144, https://doi.org/10.69646/14sbac24p
PPROCEEDINGS OF THE XIV SERBIAN-BULGARIAN ASTRONOMICAL CONFERENCE, Vrnjačka Banja, Serbia, September 23-27, 2024, Eds. Milan S. Dimitrijević, Evgeni Semkov, Zoran Simić, Goran Damljanović, Momchil Dechev
Published by: Astronomical Observatory, Volgina 7, 11060 Belgrade 38, Serbia

In this paper, we consider the accretion disk of a compact object. In the process of evolution, zones of activity are formed, which is developed into two types - internal and adjacent. We analyse the causes of occurrence and investigate the construction, location and characteristic features of each of them. We looking for the connections of the disc behaviour with energy exchange in these zones.