Abundances

Atomic abundances are entered relative to solar abundances as defined in [Grevesse, Noels and Sauval 1996], with $1.0$ being defined as the solar value and the current default. Currently supported range for these values is $(0.0 \ldots 100.0)$.

For reference: the default solar abundances used by XSTAR are as follows:

H  1.00d+000
He 1.00d-001
Li 1.00d-10
Be 1.00d-10
B  1.00d-10
C  3.70d-004
N  1.10d-004  
O  6.80d-004
F  3.98d-008
Ne 2.80d-005
Na 1.78d-006
Mg 3.50d-005
Al 2.45d-006
Si 3.50d-005
P  3.31d-007
S  1.60d-005
Cl 3.98d-007
Ar 4.50d-006
K  8.91d-008
Ca 2.10d-006
Sc 1.66d-009
Ti 1.35d-007
V  2.51d-008
Cr 7.08d-007
Mn 2.51d-007
Fe 2.50d-005
Co 1.26d-007
Ni 2.00d-006
Cu 3.16d-008
Zn 1.58d-008

The atomic species are all elements up to and including copper (Z=30). Note that as of version 2.2.0 many of these are treated using scaled hydrogenic atomic rate data.