mkcflow, vmcflow: cooling flow, mekal

A cooling flow model after Mushotzky & Szymkowiak (1988). This one differs from cflow in setting the emissivity function to be the inverse of the bolometric luminosity. Abundance ratios are set by the abund command. Redshift is converted to distance using the cosmology set by the cosmo command. The switch parameter determines whether spectrum is calculated by running the mekal code, by interpolating on a pre-calculated mekal table, or using the AtomDB data. If the last of these options are selected then see the documentation on the apec model for a list of the xset options which can be used to change the behaviour of the code.

For the mkcflow model the parameters are:

par1	low temperature (keV)
par2	high temperature (keV)
par3	abundance relative to Solar
par4	redshift
par5	switch (0 = calculate, 1 = interpolate, 2 = use AtomDB data)
norm	Mass accretion rate (solar mass/yr)

While for the vmcflow variant the parameters are:

par1	low temperature (keV)
par2	high temperature (keV)
par3-par16	Abundances for He, C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, Fe, Ni wrt Solar
par17	Redshift
par18	switch (0 = calculate, 1 = interpolate, 2 = use AtomDB data)
norm	Mass accretion rate (solar mass/yr)