The Iron Project - The Opacity Project
IPOPv2
Home
The Opacity Project
The Iron Project
TOPbase
TIPbase
OPserver
OP tables
Contact
OP Computations of Rosseland mean opacities
Mass-Fraction
s
Metal Fractional Composition (default = S92)
Hydrogen Mass-Fraction (X)
Metal Mass-Fraction (Z)
Note: metal abundances are re-normalised to the value of Z which has been set --- it is necessary to specify only the relative abundance for each metal. A negative abundance implies that the element is included in the mixture but its opacity is excluded.
C (Z=6)
N (Z=7)
O (Z=8)
Ne (Z=10)
Na (Z=11)
Mg (Z=12)
Al (Z=13)
Si (Z=14)
S (Z=16)
Ar (Z=18)
Ca (Z=20)
Cr (Z=24)
Mn (Z=25)
Fe (Z=26)
Ni (Z=28)
Output options
RMOs and their derivatives for a given temperature-density mesh. The mesh can be specified by a range or a tabulation of {log
10
(
T
) , log
10
(ρ)} or {log
10
(
T
) , log
10
(R)} where
T
is the temperature in Kelvin,
ρ
the density in g cm
-3
and
R=ρ/T
6
3
, with
T
6
=T
*1.E-6.
Please choose ONE of the following output options:
An intermediate opacity file that can then be used locally for interpolation (temperature-density) with the code
opfit.tar.gz
.
{log
10
(
T
) , log
10
(ρ)}
Initial
Interval
No. points
log
10
(
T
)
log
10
(ρ)
{log
10
(
T
) , log
10
(R)}
Initial
Interval
No. points
log
10
(
T
)
log
10
(
R
)
Local file with tabulation of {log
10
(
T
) , log
10
(ρ)}
Please introduce local file with tabulation
(see
example
)
Local file with tabulation of {log
10
(
T
) , log
10
(R)}
Please introduce local file with tabulation
(see
example
)
Home
The Opacity Project
The Iron Project
TOPbase
TIPbase
OPserver
OP tables
Contact