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Information × Registration Number 0202U000625, 0197U019099 , R & D reports Title The experimental and theoretical studies of the galactic and extragalactic sources decametre radio emission by interferometer method popup.stage_title Head Men' Anatolij Volodymyrovych, Registration Date 18-02-2002 Organization Institute of Radio Astronomy of Sciences of Ukraine popup.description2 The radio telescope URAN-2, which construction is completed in an accounting period, is described in the report. The modifications introduced in apparatus of the URAN interferometers are considered, the developed technique of calibration of URAN antennas effective area and principles of modelling of an angular structure of radio emission of sources are described. It permits to increase essentialy information value of the URAN system outcomes received. The results of experimental and theoretical studies of structure and spectra of a number extragalaxy radio sources with the decametre radio interferometers URAN are adduced. In an outcome of these measurements the most probable models of radiobrightness distribution in the decametre range of radiowaves at frequencies 20 and 25 МHz were determined for the first time for the radio galaxies ЗС111, ЗС295, ЗС338 and the quasar ЗС154. The connection of spectral dependences of space radio sources with their structure is investigated and when these dependences ar e shown the obviously expressed maxima of radiation on the certain frequency, the physical processes in the space which cause the such spectra are established and the parameters of a space medium are determined. Product Description popup.authors popup.nrat_date 2020-04-02 Close