16 citations · 121 across the 20 of their papers we have counts for
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Models of cosmological black holes
Pravin K. Dahal, Swayamsiddha Maharana, Fil Simovic +2
We study various aspects of modeling astrophysical black holes using the recently introduced semiclassical formalism of physical black holes (PBHs). This approach is based on the m…
Horizon-bound objects: Kerr--Vaidya solutions
Pravin K. Dahal, Swayamsiddha Maharana, Fil Simovic +1
Kerr-Vaidya metrics are the simplest dynamical axially-symmetric solutions, all of which violate the null energy condition and thus are consistent with the formation of a trapped r…
Surface gravity from tidal acceleration
Pravin Kumar Dahal
Surface gravity plays a pivotal role in the characterization of black holes and also in formulating the laws of black hole thermodynamics. Despite its significance, defining surfac…
The Hawking temperature of dynamical black holes via Rindler transformations
Pravin Kumar Dahal, Fil Simovic
The Vaidya metric serves as a useful model-building tool that captures many essential features of dynamical and/or evaporating black hole spacetimes. Working in a semiclassical set…
Light propagation in Kerr spacetime
Pravin Kumar Dahal
We explicitly solve the equations for the propagation of an electromagnetic wave up to the subleading order geometric optics expansion in the Kerr spacetime. This is done in two no…
Black holes as spherically-symmetric horizon-bound objects
Pravin K. Dahal, Fil Simovic, Ioannis Soranidis +1
Working in a semi-classical setting, we consider solutions of the Einstein equations that exhibit light trapping in finite time according to distant observers. In spherical symmetr…