Dimension in a Radiative Stellar Atmosphere

TL;DR

This paper explores the role of dimensional scales in a 3+1 Vaidya atmosphere around a Schwarzschild source, suggesting that higher dimensions can unify different spacetime behaviors.

Contribution

It introduces the concept that including higher dimensions in the spacetime metric can unify different behaviors observed in Vaidya atmospheres.

Findings

Higher dimensions can explain the vanishing of null fluid behavior.

A single spherical 2-surface can be characterized by higher-dimensional models.

Dimensional analysis provides insights into the structure of radiative stellar atmospheres.

Abstract

Dimensional scales are examined in an extended 3+1 Vaidya atmosphere surrounding a Schwarzschild source. At one scale, the Vaidya null fluid vanishes and the spacetime contains only a single spherical 2-surface. Both of these behaviors can be addressed by including higher dimensions in the spacetime metric.