Computing Solar Absolute Fluxes
Abstract
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 Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances.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.
Cite
@article{arxiv.0709.2194,
title = {Computing Solar Absolute Fluxes},
author = {Carlos Allende Prieto},
journal= {arXiv preprint arXiv:0709.2194},
year = {2007}
}
Comments
11 pages, 2 figures; proceedings of the conference "New Quests in Stellar Astrophysics II: The Ultraviolet Properties of Evolved Stellar Populations", Puerto Vallarta, Mexico, April 16-20, 2007