Some Aspects of Intermediate mass black holes

TL;DR

This paper reviews the current understanding of intermediate mass black holes, including their properties, formation scenarios, and potential role in the evolution of supermassive black holes, highlighting observational evidence and theoretical models.

Contribution

It provides a comprehensive overview of the characteristics, formation mechanisms, and evolutionary significance of intermediate mass black holes, integrating observational data with theoretical insights.

Findings

Intermediate mass black holes are observed in galaxies like M82 and M31.

Formation scenarios include dynamical friction, gravitational radiation, and early universe processes.

Merging intermediate mass black holes could lead to supermassive black hole formation.

Abstract

There is a lot of current astrophysical evidence and interest in intermediate mass black holes, ranging from a few hundred to several thousand solar masses. The active galaxy M82 and the globular cluster in M31, for example, are known to host such objects. Here we discuss several aspects of intermediate mass black holes such as their expected luminosity, spectral nature of radiation, associated jets, etc. We also discuss possible scenarios for their formation including the effects of dynamical friction, gravitational radiation, etc. We also consider their formation in the early universe and also discuss the possibility of supermassive black holes forming from mergers of several intermediate mass black holes and compare the relevant time scales involved with other scenarios.