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arxiv astro-ph/0410214 v2 pith:JUKUUDZ6 submitted 2004-10-07 astro-ph

The solar chemical composition

classification astro-ph
keywords solarabundanceschemicalcompositionabsorptionalmostandersapplication
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We review our current knowledge of the solar chemical composition as determined from photospheric absorption lines. In particular we describe the recent significant revisions of the solar abundances as a result of the application of a time-dependent, 3D hydrodynamical model of the solar atmosphere instead of 1D hydrostatic models. This has decreased the metal content in the solar convection zone by almost a factor of two compared with the widely used compilation by Anders & Grevesse (1989). While resolving a number of long-standings problems, the new 3D-based element abundances also pose serious challenges, most notably for helioseismology.

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