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Tree-based solvers for adaptive mesh refinement code FLASH – IV. An X-ray radiation scheme to couple discrete and diffuse X-ray emission sources to the thermochemistry of the interstellar medium

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X-ray radiation, in particular radiation between 0.1 keV and 10 keV, is evident from both point-like sources, such as compact objects and T-Tauri young stellar objects, and extended emission from hot, cooling… Click to show full abstract

X-ray radiation, in particular radiation between 0.1 keV and 10 keV, is evident from both point-like sources, such as compact objects and T-Tauri young stellar objects, and extended emission from hot, cooling gas, such as in supernova remnants. The X-ray radiation is absorbed by nearby gas, providing a source of both heating and ionization. While protoplanetary chemistry models now often include X-ray emission from the central young stellar object, simulations of star-forming regions have yet to include X-ray emission coupled to the chemo-dynamical evolution of the gas. We present an extension of the TreeRay reverse raytrace algorithm implemented in the Flash magneto-hydrodynamic code which enables the inclusion of X-ray radiation from 0.1 keV

Keywords: ray emission; chemistry; ray; radiation; ray radiation

Journal Title: Monthly Notices of the Royal Astronomical Society
Year Published: 2023

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