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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/032/01-02/0197-0201

    • Keywords

       

      Galaxies: statistics; galaxies: Seyfert; galaxies: nuclei; galaxies: spiral.

    • Abstract

       

      The orientations of the accretion disk of active galactic nuclei (AGN) and the stellar disk of its host galaxy are both determined by the angular momentum of their forming gas, but on very different physical environments and spatial scales. Here we show the evidence that the orientation of the stellar disk is correlated with the accretion disk by comparing the inclinations of the stellar disks of a large sample of Type 2 AGNs selected from Sloan Digital Sky Survey (SDSS, York et al. 2000) to a control galaxy sample. Given that the Type 2 AGN fraction is in the range of 70–90 percent for low luminosity AGNs as a priori, we find that the mean tilt between the accretion disk and stellar disk is ∼ 30 degrees (Shen et al. 2010).

    • Author Affiliations

       

      Shiyin Shen1 2 Zhengyi Shao1 2 Minfeng Gu1

      1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China.
      2. Key Lab for Astrophysics, Shanghai 200234, China.
    • Dates

       
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