Probing Nuclear and Circumnuclear Properties of NGC 6300 using X-ray Observations

Abstract

We present the results obtained from a detailed X-ray timing and spectral analysis of Seyfert 2 galaxy NGC 6300 by using observations with the {\it Suzaku}, {\it Chandra} and {\it NuSTAR} observatories between 2007 and 2016. We calculate variance, rms fractional variability of the source in different energy bands and find variabilities in various energy bands. Spectral properties of the source are studied by using various phenomenological and physical models. The properties of the Compton clouds, reflection, Fe K$\alpha$ line emission and soft X-ray excess are studied in detail. Several physical parameters of the source are extracted and investigated to establish the presence/absence of any correlation between them. We also investigate the nature of the circumnuclear `torus' and find that the torus is not uniform, rather clumpy. The observed changes in the line-of-sight column density can be explained in terms of transiting clouds. The iron line emitting region is found to be different in the different epoch of observations. We also observe that the torus and the nucleus independently evolve over the years.

16 pages, 6 figures, 7 tables, accepted for publication in MNRAS

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• Investigating Changing-Look Active Galactic Nuclei with Long-term Optical and X-Ray Observations
• Long term X-Ray Observations of Seyfert 1 Galaxy Ark 120: On the origin of soft-excess
• Hydrogen Column Density Variability in a Sample of Local Compton-Thin AGN
• Coronal Properties of Low-Accreting AGNs using Swift, XMM-Newton and NuSTAR Observations
• Absorption Variability of the Highly Obscured Active Galactic Nucleus NGC 4507
• A Multi-Wavelength Characterization of the Obscuring Medium at the Center of NGC 6300
• X-ray and CO-Derived Column Densities in AGN: A Study of Obscuration Properties in CTAGN and Non-CTAGN
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