Investigation on the solar spectrum using Blackbody Radiation Inversion

TL;DR

This paper applies blackbody radiation inversion to the Sun's spectrum to determine its temperature distribution and mean temperature without assuming homogeneity or Stefan-Boltzmann law, revealing spectrum distortions.

Contribution

It introduces the first application of blackbody radiation inversion to the Sun's spectrum to analyze temperature distribution and spectrum distortions.

Findings

Calculated the Sun's temperature distribution and mean temperature.

Identified distortions in the Sun's spectrum.

Characterized properties of the temperature distribution.

Abstract

The probability distribution of temperature of a blackbody can be determined from its power spectrum. This technique is called blackbody radiation inversion. In the present paper blackbody radiation inversion is applied on the spectrum of the Sun. The probability distribution of temperature and the mean temperature of the Sun are calculated without assuming a homogenous temperature and without using Stefan-Boltzmann law. Different properties of this distribution are characterized. This paper presents the very first mention and investigation of the distortions present within the Sun's spectrum.