SIMBAD references

2020MNRAS.498.3985Y - Mon. Not. R. Astron. Soc., 498, 3985-3994 (2020/November-1)

Host galaxy properties of changing-look AGNs revealed in the MaNGA survey.

YU X., SHI Y., CHEN Y., CHEN J., LI S., BING L., GE J., RIFFEL R.A. and RIFFEL R.

Abstract (from CDS):

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 2D 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 ±16 per cent of our CL-AGNs do possess pseudo-bulge features, and follow the overall NCL-AGN MBH* 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 ±16 per cent) fraction of counter-rotating features compared to that (1.84 ±0.61 per cent) in general star formation population. In addition, MaNGA CL-AGNs favour more face-on (axial 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.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: kinematics and dynamics - galaxies: nuclei - galaxies: Seyfert

Simbad objects: 8

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2021.05.11-13:07:42

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