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#!/usr/bin/env python3
#
# Extract the cooling time corresponding to the cooling radius.
#
# Junhua GU
# 2012-12-20
# Weitian LI
# 2016-06-07
#
import argparse
import numpy as np
def get_tcool(data, rcool):
"""
Get the cooling time *at* the specified cooling radius.
XXX: whether to interpolate first?
"""
radius = data[:, 0]
ctime = data[:, 1]
tcool = np.min(ctime[radius > rcool])
return tcool
def main():
parser = argparse.ArgumentParser(
description="Extract cooling time w.r.t the given cooling radius")
parser.add_argument("infile", help="input cooling time data file")
parser.add_argument("rcool", type=float, help="cooling radius (kpc)")
args = parser.parse_args()
data = np.loadtxt(args.infile)
tcool = get_tcool(data, rcool=args.rcool)
print("cooling time at %f kpc=%f Gyr" % (args.rcool, tcool))
print("cooling_time= %f Gyr" % tcool)
print("cooling_radius= %f kpc" % args.rcool)
if __name__ == "__main__":
main()
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