2004/10/10 by Martin Asplund, Nicolas Grevesse, Jacques Sauval · 1 citation
Physics and Astronomy · #astro-ph
paper · pdf · doi:10.1016/j.nuclphysa.2005.06.010
published as Nucl.Phys. A777 (2006) 1-4 · Invited review presented at "Cosmic abundances as records of stellar evolution and nucleosynthesis", F.N. Bash & T.G Barnes(editors). ASP conf. series, in press. The html-version of the talk is available at http://www.mso.anu.edu.au/~martin/talks/Lambert04
arxiv created 2004/10/10 · arxiv updated 2015/06/24
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.