[Wien] Treatment of E^3 in xspec

[Weinhardt, Lothar (IPS)]

Dear all,

I have a question regarding the implementation of xspec (I am 
particularly interested in the emission). The manual states that the 
implementation is following the papers of [Neckel et al., 1975, Schwarz 
et al., 1979, Schwarz and Wimmer, 1980]. The corresponding formula 
contains a E^3 term (with E being the emission photon energy). Is this 
term included in xspec? For narrow-band spectra, this emission energy 
dependence might be neglected, but for broader spectral ranges at soft 
x-ray energies, it might become relevant and I could easily apply it to 
the spectra generated by xspec (unless it is already applied).

Thanks and best wishes
Lothar Weinhardt