The Chemical Composition of the Sun

被引:7146
作者
Asplund, Martin [1 ]
Grevesse, Nicolas [2 ,3 ]
Sauval, A. Jacques [4 ]
Scott, Pat [5 ,6 ]
机构
[1] Max Planck Inst Astrophys, D-85741 Garching, Germany
[2] Univ Liege, Ctr Spatial Liege, B-4031 Angleur Liege, Belgium
[3] Univ Liege, Inst Astrophys & Geophys, B-4031 Angleur Liege, Belgium
[4] Observ Royal Belgique, B-1180 Brussels, Belgium
[5] Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, S-10691 Stockholm, Sweden
[6] Stockholm Univ, AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, S-10691 Stockholm, Sweden
来源
ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 47 | 2009年 / 47卷
关键词
convection; meteoritic abundances; solar abundances; solar atmosphere; spectral line formation; Sun; LABORATORY TRANSITION-PROBABILITIES; R-PROCESS-RICH; SOLAR PHOTOSPHERIC ABUNDANCE; METAL-POOR STARS; NON-LTE ANALYSIS; VIBRATION-ROTATION LINES; HEAVY-ELEMENT ABUNDANCES; EQUATION-OF-STATE; TO-LIMB VARIATION; COOL DWARF STARS;
D O I
10.1146/annurev.astro.46.060407.145222
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The solar chemical composition is an important ingredient in our understanding of the formation, structure, and evolution of both the Sun and our Solar System. Furthermore, it is an essential reference standard against which the elemental contents of other astronomical objects are compared. In this review, we evaluate the current understanding of the solar photospheric composition. In particular, we present a redetermination of the abundances of nearly all available elements, using a realistic new three-dimensional (3D), time-dependent hydrodynamical model of the solar atmosphere. We have carefully considered the atomic input data and selection of spectral lines, and accounted for departures from local thermodynamic equilibrium (LTE) whenever possible. The end result is a comprehensive and homogeneous compilation of the solar elemental abundances. Particularly noteworthy findings are significantly lower abundances of C, N, O, and Ne compared to the widely used values of a decade ago. The new solar chemical composition is supported by a high degree of internal consistency between available abundance indicators, and by agreement with values obtained in the Solar Neighborhood and from the most pristine meteorites. There is, however, a stark conflict with standard models of the solar interior according to helio-seismology, a discrepancy that has yet to find a satisfactory resolution.
引用
收藏
页码:481 / 522
页数:42
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