The Solar Argon Abundance

Abstract

The solar argon abundance cannot be directly derived by spectroscopic observations of the solar photosphere. The solar Ar abundance is evaluated from solar wind measurements, nucleosynthetic arguments, observations of B stars, HII regions, planetary nebulae, and noble gas abundances measured in Jupiter's atmosphere. These data lead to a recommended argon abundance of N(Ar) = 91,200(+/-)23,700 (on a scale where Si = 10^6 atoms). The recommended abundance for the solar photosphere (on a scale where log N(H) = 12) is A(Ar)photo = 6.50(+/-)0.10, and taking element settling into account, the solar system (protosolar) abundance is A(Ar)solsys = 6.57(+/-)0.10.

14 pages, 1 figure, 1 table; submitted to Astrophysical Journal

References in corpus (2)

• Neon Abundances in B-Stars of the Orion Association: Solving the Solar Model Problem?
• Planetary nebulae abundances and stellar evolution

Cited by in corpus (2)

• Helioseismology and Solar Abundances
• Argon Abundances in the Solar Neighborhood: Non-LTE Analysis of Orion Association B-type Stars