2025ApJ...992...64D -
Astrophys. J., 992, 64 (2025/October-2)
The Study of the Circumnuclear Environment of Accreting Supermassive Black Holes with Realistic X-Ray Spectral Models.
DIMOPOULOS G., RICCI C. and PALTANI S.
Abstract (from CDS):
X-ray spectral modeling is a powerful tool for studying the immediate environment of accreting objects, including supermassive black holes. Several models, either phenomenological or physically driven, have been developed over the past decade to study X-ray spectra, delivering important insights into the properties of circumnuclear material of active galactic nuclei. Despite the fact that these models are able to reproduce the data well, they often lack realistic geometries and most of them consist of simplified configurations such as a slab or a torus. We use the ray-tracing code REFLEX to generate new spectral models that cover a wide energy range in the X-ray band, adopting a realistic configuration for the surrounding material. We introduce two new table models that are publicly available: (1) the RXToPo model, which features an X-ray source along with a dusty torus and a polar hollow cone; and (2) the RXagn1 model, which also includes, besides the torus and polar cone, the accretion disk and the broad line region. Both models were applied to the X-ray spectrum of NGC 424, demonstrating their potential to study sources whose X-ray emission is dominated by reprocessed radiation.
Abstract Copyright:
© 2025. The Author(s). Published by the American Astronomical Society.
Journal keyword(s):
Supermassive black holes - Radiative transfer simulations - X-ray active galactic nuclei
Simbad objects:
4
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