Computing Solar Absolute Fluxes

Allende Prieto, C.
Referencia bibliográfica

New Quests in Stellar Astrophysics. II. Ultraviolet Properties of Evolved Stellar Populations, Proceedings of the International Conference held in Puerto Vallarta, Mexico, April 16-20, 2007. Eds.: M. Chavez, E. Bertone, D. Rosa-Gonzalez, and L. H. Rodriguez-Merino, Springer, p. 199-209

Fecha de publicación:
3
2009
Número de autores
1
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
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 Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances.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.