We construct an X-ray spectral model from the clumpy torus in an active galactic nucleus ( AGN ) , designated as “ XCLUMPY ” , utilizing the Monte Carlo simulation for Astrophysics and Cosmology framework ( MONACO : \citealt Odaka11 , Odaka16 ) .
The adopted geometry of the torus is the same as that in [ ] , who assume a power law distribution of clumps in the radial direction and a normal distribution in the elevation direction .
We investigate the dependence of the X-ray continuum and Fe K \alpha fluorescence line profile on the torus parameters .
Our model is compared with other torus models : MYTorus model \citep Murphy09 , Ikeda model \citep Ikeda09 , and CTorus model \citep Liu14 .
As an example , we also present the results applied to the broadband X-ray spectra of the Circinus galaxy observed with XMM-Newton , Suzaku , and NuSTAR .
Our model can well reproduce the data , yielding a hydrogen column density along the equatorial plane N _ { \mathrm { H } } ^ { \mathrm { Equ } } = 9.08 _ { -0.08 } ^ { +0.14 } \times 10 ^ { 24 } cm ^ { -2 } , a torus angular width \sigma = 14.7 _ { -0.39 } ^ { +0.44 } degree , and a 2–10 keV luminosity \log L _ { 2 - 10 } / \mathrm { erg s ^ { -1 } } = 42.8 .
These results are discussed in comparison with the observations in other wavelengths .