On Sagittarius A* - Theory and Observations

TL;DR

This paper proposes a theoretical model explaining Sagittarius A* as a collapsing dust sphere with properties similar to a black hole's event horizon, aligning with observational data and challenging traditional views on black hole swallowing behavior.

Contribution

It introduces a novel interpretation of Sagittarius A* as a collapsing dust globe with finite volume and event horizon properties, supported by observational consistency.

Findings

Collapse results in finite-volume globes with event horizon properties.

Event horizons in this model do not swallow matter due to Hilbert's repulsive effect.

Model aligns with observational data of Sagittarius A*.

Abstract

Massive and supermassive dust spheres (with a zero internal pressure) collapse to full globes of finite volumes, whose surfaces have the properties of the event horizon around a mass-point. This fact explains the observational data concerning Sagittarius A* (SgrA*). By virtue of Hilbert's repulsive effect, both the event horizon of a mass-point and the event horizon of a full globe cannot swallow anything.