This script is designed for astronomers or astrophysicists working with stellar evolution models. It offers two primary functionalities: generating a Kippenhan-Iben diagram, which visualizes various parameters of a star (such as temperature, luminosity, and radius) over time, and identifying non-empty binary model files (.binmod) within a specified directory. The script utilizes libraries such as matplotlib for plotting and argparse for command-line argument parsing, making it a versatile tool for research in stellar astrophysics.

from pysep.io.trk.read import read_trk
from pysep.io.mod.read import read_bin_mod
 
import argparse
 
import matplotlib as mpl
import matplotlib.pyplot as plt
 
import numpy as np
import os
 
import pathlib
 
def setup_fancy_plot():
	plt.rc('text', usetex=True)
	plt.rc('font', family='Serif')
 
	mpl.rcParams['figure.figsize'] = [10, 7]
	mpl.rcParams['font.size'] = 17
 
	mpl.rcParams['savefig.dpi'] = 150
	mpl.rcParams['xtick.minor.visible'] = True
	mpl.rcParams['ytick.minor.visible'] = True
	mpl.rcParams['xtick.direction'] = 'in'
	mpl.rcParams['ytick.direction'] = 'in'
 
	mpl.rcParams['xtick.top'] = True
	mpl.rcParams['ytick.right'] = True
 
	mpl.rcParams['xtick.major.size'] = 6
	mpl.rcParams['xtick.minor.size'] = 3
 
	mpl.rcParams['ytick.major.size'] = 6
	mpl.rcParams['ytick.minor.size'] = 3
 
	mpl.rcParams['xtick.labelsize'] = 13
	mpl.rcParams['ytick.labelsize'] = 13
 
 
def Kippenhan_Iben(age, radius, convectiveMask, ageTrk, Teff, L, R, He3):
    fig, ax = plt.subplots(1, 1, figsize=(10, 7))
 
    axes = [ax, ax.twinx(), ax.twinx(), ax.twinx(), ax.twinx()]
    # fig.subplots_adjust(right=0.75)
 
    axes[2].spines['right'].set_position(('axes', 1.6))
    axes[3].spines['right'].set_position(('axes', 1.4))
    axes[4].spines['right'].set_position(('axes', 1.2))
 
    axes[2].set_frame_on(True)
    axes[2].patch.set_visible(False)
    axes[3].set_frame_on(True)
    axes[3].patch.set_visible(False)
    axes[4].set_frame_on(True)
    axes[4].patch.set_visible(False)
 
    colors = ('C0', 'C1', 'C2', 'C3')
    axes[0].pcolormesh(age, radius, convectiveMask.T, hatch='/', cmap=mpl.cm.get_cmap('binary_r'))
    axes[0].set_xlabel('Age [Gyr]', fontsize=27)
    axes[0].set_ylabel('Radius Fraction', fontsize=27)
 
    axes[1].plot(ageTrk, Teff, color=colors[0])
    axes[1].set_ylabel(r'Log[$T_{core}$]', fontsize=27, color=colors[0])
    axes[1].tick_params(axis='y', colors=colors[0])
 
    axes[2].plot(ageTrk, L, color=colors[1])
    axes[2].set_ylabel(r'L/L$_{ZAMS}$', fontsize=27, color=colors[1])
    axes[2].tick_params(axis='y', colors=colors[1])
 
    axes[3].plot(ageTrk, R, color=colors[2])
    axes[3].set_ylabel(r'R/R$_{ZAMS}$', fontsize=27, color=colors[2])
    axes[3].tick_params(axis='y', colors=colors[2])
 
    axes[4].plot(ageTrk, He3, color=colors[3])
    axes[4].set_ylabel(r'X($^{3}$He)$_{core}$', fontsize=27, color=colors[3])
    axes[4].tick_params(axis='y', colors=colors[3])
 
    return fig, axes
 
def ident(path):
    goodFiles = list()
    for file in pathlib.Path(path).rglob("*.binmod"):
        if not os.stat(file).st_size == 0:
            goodFiles.append(file)
    return goodFiles
 
def format_ident(goodFiles):
    goodFiles = [x.parts[-2] for x in goodFiles]
    rows = [f"Binmod Found in {x} folder" for x in goodFiles]
    return '\n'.join(rows)
 
 
if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="generate kippenhan-Iben diagram for a model")
    parser.add_argument("path", help="path to model directory", type=str)
    parser.add_argument("-o", "--output", help="path to save diagram too", default="Kippenhan_Iben.pdf", type=str)
    parser.add_argument("--ident", help="instead of making kippenhan diagram, identify which models in a directory contain binary model output", default=False, action="store_true")
 
    args = parser.parse_args()
 
    if args.ident:
        goodFiles = ident(args.path)
        output = format_ident(goodFiles)
        print(output)
        exit()
 
 
    setup_fancy_plot()
 
    files = os.listdir(args.path)
    binMods = filter(lambda x: x.endswith('.binmod'), files)
    trks = filter(lambda x: x.endswith('.track'), files)
 
    binModFile = next(binMods)
    trkFile = next(trks)
 
    binModPath = os.path.join(args.path, binModFile)
    trkPath = os.path.join(args.path, trkFile)
 
    headers, cards = read_bin_mod(binModPath)
    trks, metas = read_trk(trkPath)
    trk = trks[0]
 
    minAge = 0.1
    maxAge = 12
 
    age = headers[:, 1]
    ageMask = age[(age <= maxAge) & (age >= minAge)]
 
    trkAgeCond = (trk['AGE'] <= maxAge) & (trk['AGE'] >= minAge)
    trkAge = trk['AGE'][trkAgeCond]
 
    ClogT = trk['C_log_T']
    Teff = ClogT[trkAgeCond]
 
    LLZAMS = ((10**trk['log_L'])/(10**trk.iloc[0]['log_L']))[trkAgeCond]
 
    RRZAMS = ((10**trk['log_R'])/(10**trk.iloc[0]['log_R']))[trkAgeCond]
 
    He3 = trk['CA_He3'][trkAgeCond]
 
 
    convectiveMask = cards[:, 5, :]
    radius = np.linspace(0, 1, convectiveMask.T.shape[0])
 
    radiusCut = 0.05
 
    convectiveMaskF = convectiveMask[(age <= maxAge) & (age >= minAge)]
    convectiveMaskF = convectiveMaskF[:,radius < radiusCut]
 
    fig, axes = Kippenhan_Iben(ageMask, radius[radius < radiusCut], convectiveMaskF, trkAge, Teff, LLZAMS, RRZAMS, He3)
 
    fig.savefig(args.output, bbox_inches="tight")