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            lsmooth: lorentzian smoothing

Lorentzian smoothing with a variable width, which varies as the par2 power of the energy. The width at 6 keV is set with par1.

dC(E) =

Sigma(E)/(2*pi*[(E-X)^2 + (Sigma(E)/2)^2]) * A(X)dX

Sigma(E) =

sigma(E/6)^alpha

where:

par1= s

lorentzian sigma at 6 keV

par2= a

power of energy for sigma variation