157 citations · 233 across the 4 of their papers we have counts for
5 papers
GRB Remnants
Tsvi Piran, Shai Ayal
The realization that GRBs are narrowly beamed implied that the actual rate of GRBs is much larger than the observed one. There are 500 unobserved GRBs for each observed one. The la…
Remnants from Gamma-Ray Bursts
Shai Ayal, Tsvi Piran
We model the intermediate time evolution of a "jetted" gamma-ray burst by two blobs of matter colliding with the interstellar medium. We follow the hydrodynamical evolution of this…
Tidal Disruption of a Solar Type Star by a Super-Massive Black Hole
S. Ayal, M. Livio, T. Piran
We study the long term evolution of a solar type star that is being disrupted by a super massive (10^6 solar mass) black hole. The evolution is followed from the disruption event,…
Post Newtonian SPH
S. Ayal, T. Piran, R. Oechslin +2
We introduce an adaptation of the well known Tree+SPH numerical scheme to Post Newtonian (PN) hydrodynamics and gravity. Our code solves the (0+1+2.5)PN equations. These equations…
Spherical Collapse of a Mass-Less Scalar Field With Semi-Classical Corrections
Shai Ayal, Tsvi Piran
We investigate numerically spherically symmetric collapse of a scalar field in the semi-classical approximation. We first verify that our code reproduces the critical phenomena (th…