TY JOUR TI Response of ionospheric electron density profile to the action of powerful HF radio-wave radiation KW ionosphere KW electron heating KW powerful HF radiation KW ponderomotive expulsion KW profile modification JO Solar-Terrestrial Physics AU Legostaeva, Y.K. AU Shindin, A.V. AU Grach, S.M. PY 2022 IS 8 PB INFRA-M Academic Publishing LLC.