Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..17e...3a&link_type=abstract
Highlights of Recent Progress in the Seismology of the Sun and Sun-Like Stars, 26th meeting of the IAU, Joint Discussion 17, 23
Astronomy and Astrophysics
Astrophysics
Scientific paper
Recently the solar photospheric abundances of C, N and O have been significantly revised downward as a consequence of 3D hydrodynamical solar model atmosphere, non-LTE line formation, and improved atomic/molecular data. While this new solar chemical composition solves many long-standing problems in astrophysics such as the apparent high metallicity of the Sun relative to the current-day solar neighbourhood, it wrecks havoc with standard solar interior models as judged by helioseismology. In this review I will describe the background of this solar model problem, the new 3D solar abundance analysis, and possible solutions to the discrepancy.
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