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Session: Extragalactic Astronomy and Astrophysics

Name: Mr. Georgios Dimopoulos (Universidad Diego Portales)
Coauthors: No coauthors were included.
Type: Oral
Title: Exploring the circumnuclear environment of SMBHs using ray-tracing simulations in the X-ray band
Abstract:

Supermassive black holes at the center of galaxies tend to accumulate mass in high accretion rate and produce a copious amount of radiation. A significant part of the emitted radiation is in X-rays and therefore, the study of X-rays that originate from the very center of the AGN can give us useful information about the physics that take place. We are using the RefleX platform, a ray-tracing code that generates X-ray spectra (Paltani&Ricci, 2017), in order to develop models that take into account the interactions between the X-rays and the surrounding material. In my presentation, I will introduce the new models we have developed featuring more complex and realistic geometries than the models that are currently available. The first one, includes a toroidal dusty component along with a polar medium perpendicular to the plane of rotation of the SMBH. For the second model, we take advantage of the capability of RefleX to handle complex geometries and therefore, we include, besides the torus and the polar medium, the accretion disk and broad-line region. Moreover, some examples of the models applied on real data will be illustrated. Complex models will play a crucial role in the coming years with the advent of high-resolution X-ray instruments, such as the one on XRISM.