Browsing Research publications by Author "Fukazawa, Yasushi"

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    • Transient obscuration event captured in NGC 3227 III. Photoionization modeling of the X-ray obscuration event in 2019 

      Mao, Junjie; Kaastra, J. S.; Mehdipour, M.; Kriss, G. A.; Wang, Yijun; Grafton-Waters, S.; Branduardi-Raymont, G.; Pinto, C.; Landt, H.; Walton, D. J.; Costantini, E.; Gesu, L. Di; Bianchi, S.; Petrucci, P. -O.; Marco, B. De; Ponti, G.; Fukazawa, Yasushi; Ebrero, J.; Behar, E. (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 ...