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vlorentz, zvlorentz: lorentz line profile with width in velocity
A Lorentzian line profile with the line width in km/s.
where:
par1 | |
par2 | |
norm |
For zvlorentz the corresponding formula is:
and the parameters are:
par1 | |
par2 | |
par3 | |
norm |
The line is truncated at the point that the integrated flux under the line is
within a critical value of the total flux. This critical value can be
changed using xset LINECRITLEVEL. The default critical value is
. Note also that the normalization is defined as the
integral over energies greater than zero since negative energies are unphysical.