X-ray radiative transfer in full 3D with SKIRT

Large amounts of gas and dust can be found in the central regions of most active galaxies. These ambient media play a crucial role as they provide the accretion reservoir powering active galactic nuclei (AGN) and reprocess the optical, UV and X-ray emission of the central engine. Here, we present the new X-ray functionalities of the SKIRT radiative transfer code, to study this gas and dust in the complex circumnuclear media of AGN. Focusing on the X-ray broadband spectra of obscured AGN, we introduce radiation processes in free-electron, cold-gas and dust media, which goes beyond the X-ray physics that are currently implemented in most X-ray spectral models for AGN. By incorporating these X-ray processes, we obtain a high-performance radiative transfer code that can self-consistently model complex AGN media from infrared to X-ray energies.