• INDU KALPA DIHINGIA

      Articles written in Journal of Astrophysics and Astronomy

    • A comparative study of single-temperature and two-temperature accretion flows around black holes

      INDU KALPA DIHINGIA SANTABRATA DAS SAMIR MANDAL

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      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.

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