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Information × Registration Number 0213U000299, 0107U012017 , R & D reports Title Investigations of Extragalactic Radio Sources with the Decameter Wavelength Interferometers URAN. popup.stage_title Head Shepelev Valeriy Aleksandrovich, Registration Date 30-01-2013 Organization Institute of Radio Astronomy National Academy of Sciences of Ukraine popup.description2 Improvement of hardware and software systems of the URAN interferometers is described. New development have increased reliability of measurements, and enhanced the speed of data processing. More then 80 extragalactic radio sources have been observed with increased sensitivity and better UV-plane covering using the new broadband equipment. The angular structure at decameter wavelengths of a number of radio galaxies and quasars was determined with better accuracy, and their radio brightness distribution models were fitted with more details, than ever before. Spectra of the observed sources have been established considering ionosphere distortions and confusion effect. We carried out experiments on image synthesis at the UTR-2 radio telescope using the cleaning, amplitude calibration, and phase of visibility function correction with the developed software. Product Description popup.authors Інютін Георгій Андрійович Литвиненко Олег Олександрович Мень Анатолій Володимирович Підгорний Геннадій Сергійович Рашковський Сергій Львович popup.nrat_date 2020-04-02 Close