A Kurucz model atmosphere interpolator for Python! (Now with PHOENIX atmospheres!)
This is essentially a re-writing of the original tool, KMOD, which was written in IDL, but modified such that the output files are immediately readable by the popular spectroscopic analysis program MOOG. Python being a more flexible language, PyKMOD can be run either by importing it into a Python script and using the function pykmod(), or it can be run directly from the command line via your Python interpreter.
Included for convenience are ATLAS9 and PHOENIX BT-Settl model atmospheres which are ready to be used with PyKMOD. The ATLAS9 atmospheres were downloaded from this page on the ATLAS-APOGEE website (Meszaros et al. 2012). The PHOENIX atmospheres were extracted from the PHOENIX files here, described in Allard 2016. PyKMOD can be adapted for reading any model atmosphere file by modifying its rd_kmod function.
(PyKMOD should be run with the latest versions of SciPy and Numpy)
- Download the files provided and unzip them to a directory of your choice.
- Extract the ATLAS and PHOENIX archives so that they are folders in the same directory as the Python scripts.
- If you want to import it as a python module, you can also copy the fully extracted files to your Python lib folder to make this easier.
The command line syntax is as follows:
python pykmod.py (Teff (K)) (logg ([cm/s^2])) (vmicro (km/s)) ([Fe/H] (dex)) [output file path]
python phxmod.py (Teff (K)) (logg ([cm/s^2])) (vmicro (km/s)) ([Fe/H] (dex)) [output file path]
The output file path is optional. If none is provided, it will default to a file named "modelatmosphere.txt" in the PyKMOD directory.
from pyKMOD.pykmod import pykmod
pykmod(Teff,logg,vmicro,FeH,outfile)from pyKMOD.phxmod import phxmod
phxmod(Teff,logg,vmicro,FeH,outfile)In this case an output file path is required