Experimental modeling of the "glow" and "beads" regions when forming analogs of red columnar sprites

In this work, during the formation of plasma diffuse jets (PDJs) in low-pressure air, conditions under which it is possible to obtain “glow” areas similar to those observed in the "columnar glow" region, as well as individual bright points “beads”, are realized. Due to an additional quasi-stationary discharge during the initial breakdown with a positive streamer the increasing intensity in “columnar glow” was obtained. Conditions during a single breakdown of air, under which an intense "glow" is observed, are established. Analogues of bright glowing points "beads" in red columnar sprites, during the formation of PDS in the pulse-periodic capacitive discharge mode with external electrodes, were obtained. In this case, the plasma initiating the PDS had no contact with the metal electrodes.