Host Galaxy Properties of Changing-look AGN Revealed in the MaNGA Survey
  Changing-look Active Galactic Nuclei (CL-AGNs) are a subset of AGNs in which
the broad Balmer emission lines appear or disappear within a few years. We use
the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey to
identify five CL-AGNs. The 2-D photometric and kinematic maps reveal common
features as well as some unusual properties of CL-AGN hosts as compared to the
AGN hosts in general. All MaNGA CL-AGNs reside in the star-forming main
sequence, similar to MaNGA non-changing-look AGNs (NCL-AGNs). The $80\% \pm
16\%$ of our CL-AGNs do possess pseudo-bulge features, and follow the overall
NCL-AGNs $M_{BH}-\sigma_{*}$ relationship. The kinematic measurements indicate
that they have similar distributions in the plane of angular momentum versus
galaxy ellipticity. MaNGA CL-AGNs however show a higher, but not statistically
significant ($20\% \pm 16\%$) fraction of counter-rotating features compared to
that ($1.84\% \pm 0.61\%$) in general star-formation population. In addition,
MaNGA CL-AGNs favor more face-on (axis ratio $>$ 0.7) than that of Type I
NCL-AGNs. These results suggest that host galaxies could play a role in the
CL-AGN phenomenon.
