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      https://www.ias.ac.in/article/fulltext/joaa/039/01/0006

    • Keywords

       

      Black holes—hydrodynamics—shock waves.

    • Abstract

       

      We study the properties of sub-Keplerian accretion disk around a stationary black hole, considering bremsstrahlung, synchrotron and Comptonization of synchrotron photons as radiative cooling mechanisms active in the disk. We obtain the solutions of two-temperature global accretion flow (TTAF) and compare it with the results obtained from single-temperature (STAF) model.We observe that flow properties, in particular, the radial profile of electron and ion temperatures differ noticeably in the adopted models for flows with identical boundary conditions fixed at the outer edge of the disk. Since the electron temperature is one of the key factors to regulate the radiative processes, we argue that physically motivated description of electron temperature needsto be considered in studying the astrophysical phenomena around black holes.

    • Author Affiliations

       

      INDU KALPA DIHINGIA1 SANTABRATA DAS1 SAMIR MANDAL2

      1. Indian Institute of Technology Guwahati, Guwahati 781 039, India.
      2. Indian Institute of Space Science and Technology, Thiruvananthapuram 695 547, India.
    • Dates

       
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