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arXiv · 0803.3851

On the double natured solutions to the two-temperature external soft photon comptonized accretion disks

Cesar Meirelles Filho
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Abstract

We have analyzed pair production in the innermost region of a two-temperature external soft photon comptonized accretion disk. We have shown that, if the viscosity parameter is greater than a temperature and r dependent critical value, the solution to the disk equation is double valued: one, advection dominated and the other, radiation dominated. When the viscosity parameter is below this critical value, the accretion rate has to be confined within a region limited by a minimum and a maximum accretion rates in order to have two steady state solutions. These critical accretion rates are shown to be dependent on r, on the temperature and on the viscosity parameter . Depending on the combination of the parameters, the advection dominated solution may not be physically consistent.

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Cesar Meirelles Filho. 2008-03-27. On the double natured solutions to the two-temperature external soft photon comptonized accretion disks. https://doi.org/10.1088/0004-637x%2F700%2F2%2F1086

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