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jzuhone / pyxsim

Simulating X-ray observations from astrophysical sources.
http://hea-www.cfa.harvard.edu/~jzuhone/pyxsim
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The normalization of the model #28

Closed tekkamanmaverick closed 3 years ago

tekkamanmaverick commented 3 years ago

Hi John,

I have noticed the changelog of version 2.3.0. You have replaced n_H+ with n_H. So, is the norm (10^{-14}\int{n_en_p}dV/[4\pi(1+z)^2D_A^2]) which you defined in https://hea-www.cfa.harvard.edu/soxs/users_guide/spectra.html still correct?

jzuhone commented 3 years ago

@tekkamanmaverick technically yes--if by n_p we mean the total number of hydrogen atoms. But that's a bit too ambiguous, so we need to probably fix the name of the normalization.

For most applications, when you are dealing with gas that is hot and nearly fully ionized, this change should not matter whatsoever.