3 citations · 10 across the 7 of their papers we have counts for
7 papers · 1 filter
Non-occurrence of trapped surfaces and Black Holes in spherical gravitational collapse: An abridged version
Abhas Mitra
We have shown in that for arbitrary EOS and radiation transport properties, (even) the idealized spherical gravitational collapse DOES NOT lead to the formation of trapped surfaces…
Kruskal Dynamics For Radial Geodesics. I
Abhas Mitra
The total spacetime manifold for a Schwarzschild black hole (BH) is described by the Kruskal coordinates u=u(r,t) and v=v(r,t), where r and t are the conventional Schwarzschild rad…
Final Comments on ``Another view on the velocity at the Schwarzschild horizon'' by Tereno
Abhas Mitra
We have recently shown that at the Event Horizon of a Schwarzschild BH, the Kruskal derivative assumes a form du/dv = +,- f(r,t)/f(r,t) = +, - 1. Corespondingly, du^2 = dv^2, and t…
Comment on ``Velocity at the Schwarzschild Horizon Revisited'' by I. Tereno
Abhas Mitra
In a recent preprint (astro-ph/9905144) Tereno has tried to find the physical 3-velocity (V) at the Event Horizon of a Kruskal Black Hole. This has been done in the backdrop of the…
Why General Theory of Relativity Allows the Existence of Only Extremal Black Holes
Abhas Mitra
Supersymmetric String theories find occurrences of extremal Black Holes with gravitational mass M=Q where Q is the charge (G=c=1). Thus, for the chargeless cases, they predict M=0.…
The Mass of the Oppenheimer-Snyder Black Hole
Abhas Mitra
The only instance when the General Relativistic (GTR) collapse equations have been solved (almost) exactly to explicitly find the metric coefficients is the case of a homogeneous s…