FN0PHYS

FN0PHYS = <Quantity 1.e+08 1 / cm3>

Reference number density of the coronal base in CGS.

\(n_0 = 10^8\) cm⁻³, a representative electron (or proton) number density at \(r = 1\,R_\odot\) for a quiescent solar corona. Used together with FMP to set the mass-density normalization FN_RHO.