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Paper: A Cause of Non-Stationary Occupations of Hydrogen Levels Behind a Shock Wave in Stellar Atmospheres
Volume: 510, Stars: From Collapse to Collapse
Page: 294
Authors: Bychkov, K. V.
Abstract: It is shown that electron impact ionization from the excited levels which principal quantum number lays in the range 2⩽k⩽6 brings about non-stationary occupation Hydrogen atom when the gas is cooling behind the shock front in a stellar atmosphere. Hydrogen occupation numbers depend on the whole evolution of the gas layer, not only on the current values of temperature and electron density.
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