The circumnuclear environment in M31

TL;DR

This paper provides an observational overview of the circumnuclear environment in M31, discussing its regulation, open issues, and comparisons with other galactic centers to enhance understanding of black hole feeding and galaxy evolution.

Contribution

It offers the first comprehensive observational overview of M31's circumnuclear environment and compares it with other galactic centers, highlighting key open issues.

Findings

Insights into the regulation of M31's circumnuclear environment

Comparison with the Galactic Center reveals similarities and differences

Identification of open issues in understanding circumnuclear dynamics

Abstract

Studies of galactic circumnuclear environments is important to our understanding of the feeding and feedback of the central super-massive black hole and in turn the global evolution of the host galaxy. We present an observational overview of the circumnuclear environment in M31 and a tentative understanding of its regulation. Notes on selected open issues, as well as on a comparison with the Galactic Center and other extragalactic circumnuclear environments, are also presented.