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The properties of the clumpy torus and BLR in the polar-scattered Seyfert 1 galaxy ESO 323–G77 through X-ray absorption variability
We report results from multi-epoch X-ray observations of the polar-scattered Seyfert 1 galaxy ESO 323-G77. The source exhibits remarkable spectral variability from months to years timescales. The observed spectral variability is entirely due to variations of the column density of a neutral absorber towards the intrinsic nuclear continuum. The column …