Complex sentence: In 1979, Antonov experimentally showed that Kirlian photography provides information on the distribution of the electric field in the air gap between the object and the registering medium during the corona discharge, formed by both negative nitrogen ions and positive oxygen ions.
Split into simpler sentences: In 1979, Antonov's Kirlian photography experiments generated data about the distribution of the electric field in the air gap between an object and the registering medium during corona discharge. These discharges were found to be formed by both negative nitrogen ions and positive oxygen ions.