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Computing Solar Absolute Fluxes

  • Carlos Allende Prieto
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)

Summary

Computed color indices and spectral shapes for individual stars are routinely compared with observations for essentially all spectral types, but absolute fluxes are rarely tested. We can confront observed irradiances with the predictions from model atmospheres for a few stars with accurate angular diameter measurements, notably the Sun. Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances. I provide here a progress report on our current efforts to compute absolute fluxes for solar model photospheres. Uncertainties in the solar composition constitute a significant source of error in computing solar radiative fluxes.

Keywords

Solar Spectrum Model Atmosphere Solar Surface Atmospheric Structure Radiative Transfer Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York 2009

Authors and Affiliations

  1. 1.McDonald Observatory and Department of AstronomyThe University of TexasAustinUSA

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