Modeling of continuous absorption of electromagnetic radiation in dense partially ionized plasmas

A new modeling way of describing the continuous absorption of electromagnetic (EM) radiation in a dense partially ionized hydrogen plasma is tested in this work. It is shown that the obtained results give a possibility of calculating spectral absorption coefficients which characterize the relevant absorption processes in partially ionized hydrogen plasmas with electron densities Ne ∼ 1019 cm-3 and temperatures T ∼ 2 x 104 K. A key parameter of the used procedure is determined empirically. The calculation method is applied to the wavelength region 300 nm < λ < 500 nm. The presented results can be of interest for dense laboratory plasmas as well as for partially ionized layers of different stellar atmospheres.