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Transient obscuration event captured in NGC 3227 III. Photoionization modeling of the X-ray obscuration event in 2019
(2022-09-12)
Context. A growing number of transient X-ray obscuration events in type I active galactic nuclei suggest that our line of sight to the central engine is not always free. Multiple X-ray obscuration events were reported in ...
Transient obscuration event captured in NGC 3227. I. Continuum model for the broadband spectral energy distribution
(2021-06-28)
From Swift monitoring of a sample of active galactic nuclei (AGN) we found a transient X-ray obscuration event in Seyfert-1 galaxy NGC 3227, and thus triggered our joint XMM-Newton, NuSTAR, and Hubble Space Telescope (HST) ...