TY CONF TI Measurement of the metastable helium atomic rates important for astrophysical observations KW atomic data; atomic processes; plasmas JO Modern astronomy: from the Early Universe to exoplanets and black holes AU Golubovsky, M.. AU Shaikhislamov, I.. AU Rumenskikh, M.. PY 2024 PB Special Astrophysical Observatory of the Russian Academy of Sciences