Elem. | Present | Clegg(1) | AC(2) | Solar(3) |
He | 0.046 | 0.044 | 0.05 | 0.098 |
C(-4) | 19 | 10 | 3.3 | |
N(-4) | 1.3 | 2.4 | 0.98 | 0.84 |
O(-4) | 5.3 | 8.4 | 6.0 | 4.9 |
S(-6) | 5.6 | 3.9 | 4.1 | 19 |
Ar(-6) | 3.4 | 2.5 | ||
Ne(-4) | 1.4 | 1.2 | ||
Fe(-7) | 6.1 | 320 |
(1) Clegg et al. (1983); (2) Aller & Czyzak (1979); (3) Solar: Anders & Grevesse (1989); Allende Prieto et al. (2001); Grevesse & Sauval (1998). |