ExponentialCutoffPowerLaw

class gammapy.spectrum.models.ExponentialCutoffPowerLaw(index, amplitude, reference, lambda_)

Bases: gammapy.spectrum.models.SpectralModel

Spectral exponential cutoff power-law model.

\[\phi(E) = \phi_0 \cdot \left(\frac{E}{E_0}\right)^{-\Gamma} \exp(-\lambda E)\]

Parameters:

index : Quantity

\(\Gamma\)

amplitude : Quantity

\(\phi_0\)

reference : Quantity

\(E_0\)

lambda : Quantity

\(\lambda\)

Methods Summary

evaluate(energy, index, amplitude, ...)
to_sherpa([name])	Return Sherpa Arithmetic model

Methods Documentation

static evaluate(energy, index, amplitude, reference, lambda_)

to_sherpa(name='default')

Return Sherpa Arithmetic model

Parameters:

name : str, optional

Name of the sherpa model instance