Skip to main content

HEASARC's web sites were down from Saturday Oct 24 - Weds Oct 28 due to addressing the PHP security vulnerability issue.

Xspec Home Page

next up previous contents
Next: expfac: exponential modification Up: Multiplicative Model Components Previous: etable: exponential tabular model   Contents


expabs: exponential roll-off at low E

A low-energy exponential rolloff.

$\displaystyle M(E) = exp(-E_c/E) $

where:

par1=$E_c$ e-folding energy for the absorption