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pycool_cooling_wiersma_plot_cooling_vs_Redshift
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#!/usr/bin/env python
import PyCool.CoolingWiersma as CoolingTables
from numpy import *
import sys
from optparse import OptionParser
import Ptools as pt
def parse_options():
usage = "usage: %prog [options] file"
parser = OptionParser(usage=usage)
parser = pt.add_postscript_options(parser)
parser = pt.add_limits_options(parser)
parser = pt.add_log_options(parser)
parser.add_option("--x",
action="store",
dest="x",
type="string",
default = 'r',
help="x value to plot",
metavar=" STRING")
parser.add_option("--y",
action="store",
dest="y",
type="string",
default = 'T',
help="y value to plot",
metavar=" STRING")
parser.add_option("--z",
action="store",
dest="z",
type="string",
default = None,
help="z value to plot",
metavar=" STRING")
parser.add_option("--legend",
action="store_true",
dest="legend",
default = False,
help="add a legend")
parser.add_option("--coolingdir",
action="store",
dest="coolingdir",
default = "/home/epfl/revaz/code/gear/PyCool/tables_wiersma/coolingtables/",
help="cooling directory")
parser.add_option("--HeMfaction",
action="store",
dest="HeMfaction",
type="float",
default = 0.2806,
help="Helium mass fraction",
metavar=" FLOAT")
parser.add_option("--nH",
action="store",
dest="nH",
type="float",
default = 1e-3,
help="Hydrogen density",
metavar=" FLOAT")
parser.add_option("--Z",
action="store",
dest="Z",
type="float",
default = 0.02,
help="Metallicity",
metavar=" FLOAT")
parser.add_option("--Redshift",
action="store",
dest="Redshift",
type="float",
default = 0.0,
help="Redshift",
metavar=" FLOAT")
parser.add_option("--Temperature",
action="store",
dest="Temperature",
type="float",
default = 1e5,
help="Temperature",
metavar=" FLOAT")
(options, args) = parser.parse_args()
#pt.check_files_number(args)
files = args
return files,options
########################################################################
# MAIN
########################################################################
files,opt = parse_options()
FeHSolar=0.00176604
Zsol =0.02
HeMfaction = opt.HeMfaction
nH = opt.nH
Z = opt.Z
T = opt.Temperature
Redshift=opt.Redshift
CoolingTables.Init(opt.coolingdir)
CoolingTables.setRedshiftInterpolationOff()
Redshifts = arange(0,10,0.01)
n = len(Redshifts)
Ls = zeros(n)
for i,Redshift in enumerate(Redshifts):
CoolingTables.setTablesFromRedshift(Redshift)
Ls[i] = CoolingTables.compute_LambdaTotal(T,nH,HeMfaction,Z,Zsol)
########################################################################
# plot
########################################################################
pt.xlabel('Redshift')
pt.ylabel('log Lambda/nH2')
# metal free
pt.plot(Redshifts,fabs(Ls),label="total")
pt.axis([0,10,10**-26,10**-21])
pt.semilogy()
pt.legend(loc=4)
pt.show()
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