Derived Parameter: Proton Plasma Frequency

Proton Plasma Frequency

The proton plasma frequency is a function only of the proton density. The plot below compares the three models and the formula gives values in CGS units.

Proton plasma frequencies for Fontenla Model 1001 (blue), Model 1005 (red), and Model 1006 (green).

$\omega_{p} = 1.32\times 10^{3} \sqrt{n_p}} \ \ \mathrm{Hz}$

where n_p is proton density in cm^-3.

Model 1001 Proton Frequencies (quiet Sun region)

Model 1005 Proton Frequencies (strong facular region)

Model 1006 Proton Frequencies (sunspot umbra)

To read .txt file in IDL:
Download reader

(To save a file, right-click or command-click and choose "Save Link As..."; note that some browsers may download a .pro file as .pro.txt.)