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Effects of Fluid Composition on Spherical Flows around Black Holes

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arxiv 0812.2607 v1 pith:MKYJRL2X submitted 2008-12-14 astro-ph

Indranil Chattopadhyay (1) , Dongsu Ryu (2) ((1) ARIES , India , (2) Chungnam National University , Korea) This is my paper · ORCID
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Steady, spherically symmetric, adiabatic accretion and wind flows around non-rotating black holes were studied for fully ionized, multi-component fluids, which are described by a relativistic equation of state (EoS). We showed that the polytropic index depends on the temperature as well as on the composition of fluids, so the composition is important to the solutions of the flows. We demonstrated that fluids with different composition can produce dramatically different solutions, even if they have the same sonic point, or they start with the same specific energy or the same temperature. Then, we pointed that the Coulomb relaxation times can be longer than the dynamical time in the problem considered here, and discussed the implication.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Novel methodology to obtain transonic solutions for dissipative flows around compact objects

    astro-ph.HE 2025-05 conditional novelty 6.0 of 10

    Global transonic accretion and wind solutions for black hole flows with dΩ/dr viscosity and cooling are obtained by integrating the stiff angular momentum equation implicitly and the other equations explicitly.

  2. Outflow Behavior from the Transonic Advective Disks: A Hydrodynamical Simulation Study

    astro-ph.HE 2026-07 conditional novelty 5.0 of 10

    In viscous hydro simulations, colder transonic advective disks drive faster, higher kinetic-energy and momentum bipolar outflows than hotter disks, and outflow strength increases with viscosity.

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