JHK Imaging Photometry of Seyfert I Active Galactic Nuclei and Quasars. II. Observation of Long-term Variability

Enya, KeigoYoshii, YuzuruKobayashi, YukiyasuMinezaki, TakeoSugden, D.E.Tomita, HiroyukiPeterson, Bruce2015-12-132015-12-130004-637Xhttp://hdl.handle.net/1885/74668Observations of 226 AGNs in the near-infrared J, H, and K′ bands are presented along with the analysis of the observations for variability. Our sample consists mainly of Seyfert 1 AGNs and QSOs. About a quarter of the objects in each category are radioKeywords: Galaxies: active; Galaxies: photometry; Galaxies: Seyfert; Infrared: galaxies; Quasars: generalJHK Imaging Photometry of Seyfert I Active Galactic Nuclei and Quasars. II. Observation of Long-term Variability200210.1086/3395072015-12-11