HeIII Case B Recombination Cooling Coefficients

From Eric's Wiki

Jump to: navigation, search

Recombination cooling coefficients for HeIII -> HeII, Case B scale as those of HII -> HI via: βBHeIII(T) = 8 * βBHII(T / 4)

The factor of 8 comes from the factor Z from the relation αHeIII(T) = Z * αHII(T / 4) and the fact that in the relation \beta \simeq \mathrm{k}T \alpha, the T in the kT should not undergo the transformation T -> T/4.

See Also

Recombination Coefficients

Retrieved from "http://wiki.hmet.net/index.php/HeIII_Case_B_Recombination_Cooling_Coefficients"
Personal tools