Extensive Air Showers of Highest Energies Registered at the Yakutsk Array.

The article considers showers produced by primary particles with energies eV. The showers were registered in the course of continuous long-term observations at the Yakutsk array of extensive air showers. In the present work, the mathematical processing of showers was repeated and the phenomenology of the charged component, muons with threshold GeV in the region of highest energies was refined. Mass composition of primary particles producing air showers with energy greater than eV was made based on the muon component. [ABSTRACT FROM AUTHOR]