def GetlistFromFits(config, catalog):
"""Read the config and catalog file and generate the list of sources to include"""
#Get the informations for the config file
srcname = config['target']['name']
ra_src = config['target']['ra']
dec_src = config['target']['dec']
ra_space = config['space']['xref']
dec_space = config['space']['yref']
emin = config['energy']['emin']
roi = config['space']['rad']
max_radius = config['model']['max_radius']
min_significance = config['model']['min_significance']
model = config['target']['spectrum']
#read the catalog file
cfile = pyfits.open(catalog)
data = cfile[1].data
names = data.field('Source_Name')
ra = data.field('RAJ2000')
dec = data.field('DEJ2000')
flux = data.field('Flux_Density')
pivot = data.field('Pivot_Energy')
index = data.field('Spectral_Index')
cutoff = data.field('Cutoff')
spectype = data.field('SpectrumType')
beta = data.field('beta')
sigma = data.field('Signif_Avg')
#add the target to the list of sources
sources = [{'name':srcname, 'ra': ra_src, 'dec': dec_src,
'flux': 1e-9, 'index':-2, 'scale': emin,
'cutoff': 1e4, 'beta': 0.1, 'IsFree': 1,
'SpectrumType': model}]
Nfree = 1
#loop over all the sources of the catalog
for i in xrange(len(names)):
#distance from the center of the maps
rspace = utils.calcAngSepDeg(float(ra[i]), float(dec[i]), ra_space, dec_space)
#distance for the target
rsrc = utils.calcAngSepDeg(float(ra[i]), float(dec[i]), ra_src, dec_src)
# sources with angular separation less than 0.1 degree
# from the target are not added
# if the source is close to the target : add it as a free source
if rsrc < max_radius and rsrc > .1 and sigma[i] > min_significance:
Nfree += 1
sources.append({'name': names[i], 'ra': ra[i], 'dec': dec[i],
'flux': flux[i], 'index': -index[i], 'scale': pivot[i],
'cutoff': cutoff[i], 'beta': beta[i], 'IsFree': 1,
'SpectrumType': spectype[i]})
else:
# if the source is inside the ROI: add it as a frozen source
if rspace < roi and rsrc > .1 and sigma[i] > min_significance:
sources.append({'name': names[i], 'ra': ra[i], 'dec': dec[i],
'flux': flux[i], 'index': -index[i], 'scale': pivot[i],
'cutoff': cutoff[i], 'beta': beta[i], 'IsFree': 0,
'SpectrumType': spectype[i]})
print "Add ", len(sources), " sources in the ROI of ", roi, " degrees"
print Nfree, " sources have free parameters inside ", max_radius, " degrees"
return sources
def GetlistFromFits(config, catalog):
"""Read the config and catalog file and generate the list of sources to include"""
#Get the informations for the config file
srcname = config['target']['name']
ra_src = config['target']['ra']
dec_src = config['target']['dec']
ra_space = config['space']['xref']
dec_space = config['space']['yref']
emin = config['energy']['emin']
roi = config['space']['rad']
max_radius = config['model']['max_radius']
min_significance = config['model']['min_significance']
model = config['target']['spectrum']
if model == "Generic":
log.warning("Generic model found. Will turn it to PowerLaw")
model = "PowerLaw"
#read the catalog file
cfile = pyfits.open(catalog)
data = cfile[1].data
names = data.field('Source_Name')
ra = data.field('RAJ2000')
dec = data.field('DEJ2000')
flux = data.field('Flux_Density')
pivot = data.field('Pivot_Energy')
index = data.field('Spectral_Index')
try : # valid for the 2FGH, not for the 1FHL
cutoff = data.field('Cutoff')
beta = data.field('beta')
spectype = data.field('SpectrumType')
except :
cutoff = np.zeros(names.size)
beta = np.zeros(names.size)
spectype = np.array(names.size*["PowerLaw"])
pivot *= 1e3 ## energy in the 1FHL are in GeV
flux *= 1e3
extendedName = data.field('Extended_Source_Name')
sigma = data.field('Signif_Avg')
#add the target to the list of sources
sources = [{'name':srcname, 'ra': ra_src, 'dec': dec_src,
'flux': 1e-9, 'index':-2, 'scale': emin,
'cutoff': 1e4, 'beta': 0.1, 'IsFree': 1,
'SpectrumType': model, 'ExtendedName': ''}]
Nextended = 0
Nfree = 1
#loop over all the sources of the catalog
for i in xrange(len(names)):
#distance from the center of the maps
rspace = utils.calcAngSepDeg(float(ra[i]), float(dec[i]), ra_space, dec_space)
#distance for the target
rsrc = utils.calcAngSepDeg(float(ra[i]), float(dec[i]), ra_src, dec_src)
# sources with angular separation less than 0.1 degree
# from the target are not added
# if the source is close to the target : add it as a free source
if rsrc < max_radius and rsrc > .1 and sigma[i] > min_significance:
Nfree += 1
sources.append({'name': names[i], 'ra': ra[i], 'dec': dec[i],
'flux': flux[i], 'index': -index[i], 'scale': pivot[i],
'cutoff': cutoff[i], 'beta': beta[i], 'IsFree': 1,
'SpectrumType': spectype[i], 'ExtendedName': extendedName[i]})
if not(extendedName[i]==""):
print "Adding extended source ",extendedName[i]," 2FGL name is ",names[i]
Nextended=+1
else:
# if the source is inside the ROI: add it as a frozen source
if rspace < roi and rsrc > .1 and sigma[i] > min_significance:
sources.append({'name': names[i], 'ra': ra[i], 'dec': dec[i],
'flux': flux[i], 'index': -index[i], 'scale': pivot[i],
'cutoff': cutoff[i], 'beta': beta[i], 'IsFree': 0,
'SpectrumType': spectype[i],'ExtendedName': extendedName[i]})
if not(extendedName[i]==""):
print "Adding extended source ",extendedName[i]," 2FGL name is ",names[i]
Nextended=+1
print "Add ", len(sources), " source(s) in the ROI of ", roi, " degrees"
print Nfree, " source(s) have free parameters inside ", max_radius, " degrees"
print Nextended, " source(s) is (are) extended"
return sources