cemekl, cevmkl: plasma emission, multi-temperature using mekal

A multi-temperature plasma emission model built from the mekal code. Emission measures follow a power-law in temperature (i.e. emission measure from temperature T is proportional to (T/T_max)^a. The switch parameter determines whether the mekal code will be run to calculate the model spectrum for each temperature or whether the model spectrum will be interpolated from  a pre-calculated table. The former is slower but more accurate.

For the cemekl version, the abundance ratios are set by the abund command. The cevmkl variant allows the user to define the abundances.

 

The parameters for cemekl are:

par1=a	index for power-law emissivity function
par2=Tmax	maximum temperature
par3	nH (cm-3)
par4	abundance relative to solar
par5	redshift z
par6	0    calculate
	1    interpolate
	2    interpolate using APEC model
norm	Normalization

For the cevmkl variant the parameters are:

par1	index for power-law emissivity function
par2	maximum temperature
par3	nH (cm-3)
par4-17	abundance relative to solar Abundances for He, C, N, O, Ne, Na, Mg, Al, Si, S,Ar, Ca, Fe, Ni wrt Solar (defined by the abund command)
par18	redshift z
par19	0    calculate
	1    interpolate
	2    interpolate using APEC model
norm	Normalization