Stellar Spectral Line Synthesis from an Individual Photon-Following Simulation

Abstract

A stochastic stellar atmosphere model which simulates the behavior of photons in the atmospheres of stars by following individual photons is described and tested. The model accounts for stellar turbulence, atmospheric curvature, stellar rotation, collisional excitation, collisional de-excitation, and stellar winds. Testing shows that this new method of stellar radiative transfer is successful in simulating all of the processes. Particular results of interest include simulation of solar limb darkening and spectral synthesis of three different solar absorption lines.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA242970

Entities

People

  • Gregory F. Devogel

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Atmospheres
  • Classification
  • Doppler Effect
  • Geometry
  • Physics
  • Radiation
  • Radiative Transfer
  • Scattering
  • Simulations
  • Solar Spectrum
  • Spectra
  • Spectral Lines
  • Stars
  • Stellar Atmospheres
  • Turbulence
  • United States

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Computational Modeling and Simulation
  • Solar Physics