## Quantum Gravity and String Theory   ## Modeling the Interior of Black Holes Utilizing a 4-D Spatial Blackbody Radiation Model with an Exponential Distribution

Authors: Christopher Pilot

This is a second follow up paper on a model, which treats the black hole as a 4-D spatial ball filled with blackbody radiation. For the interior radiative mass distribution, we employ a new type of truncated probability distribution function, the exponential distribution. We find that this distribution comes closest to reproducing a singularity at the center, and yet it is finite at 4-D radius, r=0. This distribution will give a constant gravitational acceleration for a test particle throughout the black hole, irrespective of radius. The 4-D gravitational acceleration is given by the expression, g^((4))=-.1c^2 λ=-.2λ GM_R/R , where R is the radius of the black hole, M_R is its mass, and λ is the exponential shape parameter, which depends only on the mass, or radius, of the black hole. We calculate the gravitational force, and the entropy within the black hole interior, as well as on its surface, the event horizon, which separates 3-D from 4-D space. Similar to a truncated Gaussian distribution, the gravitational force increases discontinuously, and dramatically, upon entry into the 4-D black hole from the 3-D side. It is also radius dependent within the 4-D black hole. Moreover, the total entropy is shown to be much less than the Bekenstein result, similar to the truncated Gaussian. For the gravitational force, we obtain, F_(G,r)^((4))=-.1c^2 λ〖 M〗_r , where M_r is the radiative mass enclosed within a 4-D volume of radius r. This unusual force law indicates that the gravitational force acting upon a layer of blackbody photons at radius r is strictly proportional to the enclosed radiative energy, M_r c^2, contained within that radius, with .1 λ being the constant of proportionality. For the entropy at radius, r, and on the surface, we obtain an expression which is order of magnitude comparable to the truncated Normal distribution. Tables are presented for three black holes, one having a mass equal to that of the sun. The other two have masses, which are ten times that of the sun, and 〖10〗^6 solar masses. The corresponding λ parameters are found to equal, (λ_A,λ_B,λ_C )=(.039569,.0037996,3.01229*〖10〗^(-8)), respectively. We compare these results to the truncated Gaussian distribution, which were worked out in another paper.

Comments: 31 Pages.

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### Submission history

[v1] 2019-05-01 12:49:25

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