existing tables * atomic masses * |
ATOMIC MASSESWe list the atomic masses (atomic weights) used for these astrophysical opacity calculations from OPAL. These data are used to convert user-specified number fractions of the elements to mass fractions (X, Y, Z). Element Atomic Mass (a.u.) H 1.00790 He 4.00260 C 12.01100 N 14.00670 O 15.99940 Ne 20.17900 Na 22.98977 Mg 24.30500 Al 26.98154 Si 28.08550 P 30.97376 S 32.06000 Cl 35.45300 Ar 39.94800 K 39.09830 Ca 40.08000 Ti 47.90000 Cr 51.99600 Mn 54.93800 Fe 55.84700 Ni 58.70000 For more information about OPAL, contact: Information date 1998 January 20. UCRL-MI-130190 |