activity
19952023
most citedOrphan GRB radio afterglows: Candidates and constraints on beaming

151 citations · 2.7k across the 96 of their papers we have counts for

collaborators
Showing 2007Show all

7 papers · 1 filter

astro-ph2007★ 6 cited

Collimation and Radiative Deceleration of Jets in TeV AGNs

Amir Levinson, Omer Bromberg

We consider some implications of the rapid X-ray and TeV variability observed in M87 and the TeV blazars. We outline a model for jet focusing and demonstrate that modest radiative…

astro-ph2007★ 61 cited

Relativistic Photon Mediated Shocks

Amir Levinson, Omer Bromberg

A system of equations governing the structure of a steady, relativistic radiation dominated shock is derived, starting from the general form of the transfer equation obeyed by the…

astro-ph2007★ 45 cited

On the Origin of Rapid Flares in TeV Blazars

Amir Levinson

The rapid variability of the VHE emission reported for some TeV blazars implies Doppler factors well in excess of those inferred from superluminal motions and unification schemes.…

astro-ph2007

Phenomenology of Gamma-Ray Jets

Amir Levinson

We discuss some phenomenological aspects of -ray emitting jets. In particular, we present calculations of the -sphere and -sphere for various target photon fields, and emp…

astro-ph2007★ 13 cited

Structure and Nuclear Composition of General Relativistic, Magnetohydrodynamic Outflows from Neutrino-Cooled Disks

Yudith Barzilay, Amir Levinson

We compute the structure and degree of neutronization of general relativistic magnetohydrodynamic (GRMHD) outflows originating from the inner region of neutrino-cooled disks. We co…

astro-ph2007

Gamma Ray and Neutrino Emission as a Probe of Relativistic Jets

Amir Levinson

Constraints on the dynamics, dissipation, and production of VHE neutrinos in relativistic jets are derived using opacity calculations and VHE -ray observations. In particular, i…