# 7.6.16.2.1. Black_Body

Syntax

  Radiation Source [{of} SpeciesName] = Black_Body ()

Scope

  Aria Material

Summary

  Source due to black body radiation

Description

  a is the absorption cross section expression, sigma is the Stefan-Boltzmann constant, and T is the temperature expression.

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –