Are “Changing-look” Active Galactic Nuclei Special in the Coevolution of Supermassive Black Holes and Their Hosts? I.

The nature of the so-called “changing-look” (CL) active galactic nucleus (AGN), which is characterized by spectral-type transitions within ∼10 yr, remains an open question. As the first in our series of studies, we attempt here to understand the CL phenomenon from the view of the coevolution of AGNs...

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Bibliographic Details

Published in:	The Astrophysical Journal
Main Authors:	J. Wang, W. K. Zheng, T. G. Brink, D. W. Xu, A. V. Filippenko, C. Gao, C. H. Xie, J. Y. Wei
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Subjects:	Active galactic nuclei Active galaxies Supermassive black holes Spectroscopy Galaxy evolution X-ray active galactic nuclei
Online Access:	https://doi.org/10.3847/1538-4357/acf5e0