• Effective Spectral Indices of Core and Extended Emissions for Radio Sources

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    • Keywords


      Active galatic nuclei: radio emission.

    • Abstract


      From some available literatures, a sample of 393 radio sources is selected. The core and extended spectral indices are calculated. Results show that the core spectral index is different from the extended spectral index with the middle values approximately being 0 and 0.8 respectively.

    • Author Affiliations


      R. S. Yang1 J. H. Yang1 2 J. J. Nie1

      1. Department of Physics and Electronics Science, Hunan University of Arts and Science, Changde 415000, China.
      2. Centre for Astrophysics, Guangzhou University, Guangzhou 510006, China.
    • Dates

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