44 citations · 82 across the 19 of their papers we have counts for
Showing 2003 · astro-phShow all
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astro-ph2003
Towards a complete theory of Gamma Ray Bursts
Arnon Dar, A. De Rujula
Gamma Ray Bursts (GRBs) are notorious for their diversity. Yet, they have a series of common features. The typical energy of their rays is a fraction of an MeV. The energy dist…
astro-ph2003
On the origin of X-ray Flashes
Shlomo Dado, Arnon Dar, Alvaro De Rujula
We use the cannonball (CB) model of gamma ray bursts (GRBs) and their afterglows (AGs) to analyze the observational data on X-ray flashes (XRFs) and their AGs. We show that the obs…
astro-ph2003
Cooling flows or warming rays?
Sergio Colafrancesco, Arnon Dar, Alvaro De Rujula
The radiative cooling time of the X-ray-emitting plasma near the center in many clusters of galaxies is shorter than the age of the cluster, but neither the expected large drop in…