[Wien] Treatment of E^3 in xspec

Peter Blaha peter.blaha at tuwien.ac.at
Tue May 16 15:20:52 CEST 2023


Hi,
No, I don't think it is multiplied by e^3.
I only see   W * ME^2 * DOS

Regards
Peter Blaha

Am 16.05.2023 um 10:26 schrieb 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
> 
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