"""

Find equilibrium temperatures for PDR gas

"""

import numpy

import scipy

from scipy.optimize import fsolve, bisect

from heatcool import heat, cool

def func(x):

"Heating = Cooling"

return heat(dens, Av, D, newvalues=True) - dens*cool(dens, x, True)

densarray = numpy.logspace(0.0, 8.0, num=200)

Tmin, Tmax = 0.1, 1.0e9

for Av, D in [

[0.0, 0.2],

[3.0, 0.2],

[30.0, 0.2],

[0.0, 0.5],

[3.0, 0.5],

[30.0, 0.5],

[0.0, 2.0],

[3.0, 2.0],

[30.0, 2.0],

]:

f = open("hc-equilib-Av%.1f-D%.1f.dat" % (Av, D), "w")

for dens in densarray:

T = bisect(func, Tmin, Tmax)

f.write("%.2e "*2 % (dens, T) + "\n")

f.close()