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Information × Registration Number 0125U002181, ( 0225U004287  ) R & D request Title Thermal free-free absorption in supernova remnants at radio frequencies below 80 MHz Head Stanyslavskyi Oleksandr O., Доктор фізико-математичних наук Registration Date 14-04-2025 Organization Radio Astronomical Institute of the National Academy of Sciences of Ukraine popup.description1 The purpose of this work is to study the radio emission of supernova remnants 3C144, HB3 and 3C461 from spectral observations using 3C405 as a calibrator. Measurements of such spectra on the Ukrainian GURT and URAN-2 radio telescopes with the French NenuFAR one due to the contribution of ionized gas inside and outside remnants will be a significant result. This will allow us to estimate the temperature, average ionization, and emission measure of the absorbing gas into the remnants and the surrounding interstellar medium. popup.nrat_date 2025-04-14 Close