Astrophysics (index)

Stellar Model Atmosphere

(simulation of the star's production of emitted EMR)

A Stellar Model Atmosphere is a model of the gas/Plasma that makes up the Stellar Atmosphere and its effect on the star's emitted Electromagnetic Radiation (EMR). Current models are software-based, their input consisting of assumptions about the star's energy, Temperature, and composition and their output is a star's Spectral Energy Distribution (SED), including Spectral Lines. A model run that reproduces a stellar observation's complex observed spectrum in detail constitutes evidence that its model input matches the real star.

The model can include basic Radiative Transfer Code (RT Code), information about the spectral lines produced by elements common to stars and information about how spectral lines are produced and shaped.