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Radiative Cooling of a Low-Density Plasma
Raymond, John C; Cox, Donald P; and Smith, Barham W

Abstract

We have calculated the radiative cooling coefficient for a low-density, optically thin gas of cosmic abundances in the range 104-108 K incorporating significant elements through nickel and many recently improved rate calculations.


Summary

This paper is mainly an extension of an earlier paper of which I could not, at the time of this writing, obtain a copy. The authors modify their radiative cooling calculations, taking into account all of the elements up through Ni, as well as adding individual lines that they had previously averaged together.

Of particular interest to me was the equation for power radiated per cubic centimeter:

&Lambda = LNeNH

Where the authors assume NH=1 cm-3. This implies to me that the equation for emission measure should take into account the number density of hydrogen instead of the number density of ions in general (Ni).


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