Simulation based parameter space for shock in transonic, sub-Keplerian accretion flow onto non-rotating black holes

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ID: 315658
2026
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Abstract
Abstract Non-dissipative, transonic, sub-Keplerian accretion flow onto black holes is characterized by two conserved parameters: specific energy and specific angular momentum of the flow. For certain range of these parameters, the accretion flow shows shock formation and the post-shock matter forms a boundary layer which is believed to shape the radiative properties of the accretion disk. In this work, we identify the parameter space for shock in such accretion flows using multi-dimensional numerical simulations around non-rotating black holes and demonstrate that the shock formation parameter space is much larger than the analytically calculated one. We also find the boundary layer to be dynamic for a significant part of this parameter space and self-consistently produce outflow from the accretion disk.
Reference Key
openalex_W7163393799 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Aishi Dasadhikary, Sudip K. Garain
Journal monthly notices of the royal astronomical society
Year 2026
DOI
10.1093/mnras/stag1042
URL
https://doi.org/10.1093/mnras/stag1042
Keywords Keywords not found

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