• The Size of Narrow Line Region and [OIII] Luminosity Analyzed from SDSS DR7 Quasar Catalogue

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    • Keywords


      Methods: statistical; galaxies: active; galaxy: fundamental parameters.

    • Abstract


      In this work, we constructed a sample of 4002 quasars from SDSS DR7 quasar catalogue to calculate the electron density and size of narrow line region. We find that the electron densities are ∼ 103/cm3, and the sizes are between 27 and 775 pc. We also find that, in the ionization cone, the sizes are tightly correlated with the luminosities of [OIII]𝛾5007.

    • Author Affiliations


      Zhi-Fu Chen1 Y.-P. Qin1 2 Z.-Y. Chen3 L.-Z. Lü2

      1. Center for Astrophysics, Guangzhou University, Guangzhou 510006, People’s Republic of China.
      2. Physics Department, Guangxi University, Nanning 530004, People’s Republic of China.
      3. Department of Astronomy, Peking University, Beijing 100871, People’s Republic of China.
    • Dates

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