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Study of the Anglular Structure of Emission from the Radio Galaxy 3C295 in the Decameter Wavelength Range

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Abstract

We present the results of observations of the angular structure of the radio source 3C295 at decameter waves using the URAN-1 and URAN-2 interferometers. It is shown that the radio image of 3C295 at these frequencies differs drastically from the structure of this object observed at higher frequencies. The simplest model of the structure of this radio galaxy, comprising one component with a Gaussian brightness distribution of angular size (7″.4 ± 0″.4)× (8″.7± 0″.4) at 25 MHz and (9″.1± 0″.5)× (10″.6 ± 0″.5) at 20 MHz, is determined. A decrease in the spectral density of the emission with decreasing frequency, observed below 50 MHz, is explained.

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Authors and Affiliations

  1. Radioastronomical Institute of the National Academy of Sciences of Ukraine, Kharkov, Ukraine

    A. V. Men', S. Y. Braude, S. L. Rashkovsky, N. K. Sharykin, V. A. Shepelev, G. A. Inuytin & R. V. Vashchishin

  2. Gravimetry Observatory of the Institute of of the National Academy of Sciences of Ukraine, Poltava, Ukraine

    A. I. Brazhenko & V. G. Bulathsen

Authors
  1. A. V. Men'
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  2. S. Y. Braude
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  3. S. L. Rashkovsky
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  4. N. K. Sharykin
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  5. V. A. Shepelev
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  6. G. A. Inuytin
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  7. R. V. Vashchishin
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  8. A. I. Brazhenko
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  9. V. G. Bulathsen
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Men', A.V., Braude, S.Y., Rashkovsky, S.L. et al. Study of the Anglular Structure of Emission from the Radio Galaxy 3C295 in the Decameter Wavelength Range. Radiophysics and Quantum Electronics 45, 583–594 (2002). https://doi.org/10.1023/A:1021763012484

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  • DOI: https://doi.org/10.1023/A:1021763012484

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