Investigation of active galactic nuclei in time domain era

TL;DR

This paper reviews the current and future efforts in studying active galactic nuclei (AGNs) variability in Serbia, highlighting their importance for understanding supermassive black holes and the structure of AGNs through time-domain observations.

Contribution

It provides an overview of the status and prospects of AGN variability research in Serbia, emphasizing the role of monitoring campaigns in advancing astrophysical knowledge.

Findings

AGNs variability helps estimate supermassive black hole masses.

Spectral variability reveals the structure of the broad line region.

Monitoring campaigns are crucial for future AGN studies.

Abstract

The perfect case for time-domain investigations are active galactic nuclei (AGNs) since they are luminous objects that show strong variability. Key result from the studies of AGNs variability is the estimated mass of a supermassive black hole (SMBH), which resides in the center of an AGN. Moreover, the spectral variability of AGN can be used to study the structure and physics of the broad line region, which in general can be hardly directly observed. Here we review the current status of AGNs variability investigations in Serbia, in the perspectives of the present and future monitoring campaigns.