CoolDwarf.opac.ferg05 package¶
Subpackages¶
Submodules¶
CoolDwarf.opac.ferg05.opac module¶
Ferguson et al. (2005) Opacity Table module. This module takes a single file which is the merging of an entire Ferguson opacity table composition set and parses it. At instantiation a table is interpolated to the correct X and Z from the provided table set. The table is then used to calculate the opacity at a given logR and logT. Currently this uses the GS98 composition file. This can be extended if you are interested in extending it to other compositions.
- ..math::
R = rho left(frac{T}{10^6}right)^3
Functions¶
- linear_interpolator(x, x1, x2, Q1, Q2)
Provides a linear interpolation between two points
- bilinear_interpolator(x, z, x1, x2, z1, z2, Q00, Q10, Q01, Q11)
Provides a bilinear interpolation between four points
- find_closest_indices(x, z, keys)
Finds the closest indices in a dictionary to a given x and z
Classes¶
- Ferg05Opacity
Class for the Ferguson et al. (2005) opacity table It is used to calculate the opacity at a given logR and log and provides the standard CoolDwarf opacity interface (the kappa function)
Example Usage¶
>>> from CoolDwarf.opac.ferg05.opac import Ferg05Opacity
>>> X, Z = 0.7, 0.02
>>> opac = Ferg05Opacity(X, Z)
>>> logKappa = opac.kappa(4e3, 1e-1)
>>> print(f"Kappa_rmo: {10**logKappa} cm^2/g")