Morphology of AGN emission-line regions in SDSS-IV MaNGA survey

  title={Morphology of AGN emission-line regions in SDSS-IV MaNGA survey},
  author={Zhicheng He and Ai-Lei Sun and Nadia L. Zakamska and Dominika Wylezalek and Michael Kelly and Jenny E. Greene and Sandro Barboza Rembold and Rog{\'e}rio Riffel and Rogemar A. Riffel},
  journal={Monthly Notices of the Royal Astronomical Society},
Extended narrow-line regions (NLRs) around active galactic nuclei (AGN) are shaped by the distribution of gas in the host galaxy and by the geometry of the circumnuclear obscuration, and thus they can be used to test the AGN unification model. In this work, we quantify the morphologies of the narrow-line regions in 308 nearby AGNs ($z=0-0.14$, \lbol $\sim 10^{42.4-44.1}$ \erg{}) from the MaNGA survey. Based on the narrow-line region maps, we find that a large fraction (81\%) of these AGN have… 

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