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Просмотр по автору "Udovitskiy R."

Просмотр по автору "Udovitskiy R."

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  • A study of the synchrotron component in the blazar spectral energy distributions 
    Mingaliev M.; Sotnikova Y.; Mufakharov T.; Erkenov A.; Udovitskiy R. (2015)
    © Pleiades Publishing, Ltd., 2015. We study the synchrotron component of nonthermal radiation of blazars using the spectral energy distribution (SED). The sample contains a total of 877 blazars, including 423 flat-spectrum ...
  • Automated system for reduction of observational data on RATAN-600 radio telescope 
    Udovitskiy R.; Sotnikova Y.; Mingaliev M.; Tsybulev P.; Zhekanis G.; Nizhelskij N. (2016)
    © 2016, Pleiades Publishing, Ltd.We present the automated systemfor estimating the parameters of radio sources observed on all available continuum radiometers (two receiving facilities of secondary mirrors No. 1 and No. 2 ...
  • Gigahertz-peaked spectrum (GPS) galaxies and quasars 
    Mingaliev M.; Sotnikova Y.; Mufakharov T.; Erkenov A.; Udovitskiy R. (2013)
    The results of a comprehensive analysis of continuous radio spectra of a sample of Gigahertz-Peaked Spectrum (GPS) sources are reported. The sources are selected from a flux-density-complete sample (S ν ≥ 200 mJy at 4.8 ...
  • High-redshift quasars at z ≥ 3 - I. Radio spectra 
    Sotnikova Y.; Mikhailov A.; Mufakharov T.; Mingaliev M.; Bursov N.; Semenova T.; Stolyarov V.; Udovitskiy R.; Kudryashova A.; Erkenov A. (2021)
    We present the radio properties of optically selected quasars with z ≥ 3. The complete sample consists of 102 quasars with a flux density level S1.4 ≥ 100 mJy in a declination range -35° ≤ Dec. ≤ +49°. The observations ...
  • MARS-3 matrix radiometric system for RATAN-600 
    Berlin A.; Parijskij Y.; Nizhelskij N.; Mingaliev M.; Tsybulev P.; Kratov D.; Udovitskiy R.; Smirnov V.; Pylypenko O. (2012)
    The MARS-3 third-generation matrix radiometric system has been developed, manufactured, and is currently being used in observations within the framework of the "Cosmological Gene" program. The system is based on new hardware ...
  • Multifrequency study of GHz-peaked spectrum sources and candidates with the RATAN-600 radio telescope 
    Mingaliev M.; Sotnikova Y.; Torniainen I.; Tornikoski M.; Udovitskiy R. (2012)
    Context. Gigahertz peaked spectrum (GPS) radio sources are a class of extragalactic radio sources characterized by a spectral peak in the gigahertz domain. They are a mixed class of quasars and galaxies. A large proportion ...
  • RATAN-600 multi-frequency data for the BL Lacertae objects 
    Mingaliev M.; Sotnikova Y.; Udovitskiy R.; Mufakharov T.; Nieppola E.; Erkenov A. (2014)
    © ESO, 2014. Aims. We present a new catalogue of the RATAN-600 multi-frequency measurements for BL Lac objects. The purpose of this catalogue is to compile the BL Lac multi-frequency data that is acquired with the RATAN-600 ...
  • Simultaneous spectra and radio properties of BL Lacs 
    Mingaliev M.; Sotnikova Y.; Mufakharov T.; Nieppola E.; Tornikoski M.; Tammi J.; Lähteenmäki A.; Udovitskiy R.; Erkenov A. (2017)
    © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim We present the results of 9 years of the blazar observing program at the RATAN-600 radio telescope (2005–2015). The data were obtained at six frequency bands (1.1, 2.3, ...

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