222 citations · 1.8k across the 66 of their papers we have counts for
4 papers · 2 filters
X-ray to gamma-ray virial shock signal from the Coma cluster
Uri Keshet, Ido Reiss
Following evidence for an east--west elongated virial ring around the Coma galaxy cluster in a GeV VERITAS mosaic, we search for corresponding signatures in GeV -ra…
Analytic study of 1D diffusive relativistic shock acceleration
Uri Keshet
Diffusive shock acceleration (DSA) by relativistic shocks is thought to generate the spectra of charged particles in various astronomical relativistic flows.…
IceCube constraints on the Fermi Bubbles
Nimrod Sherf, Uri Keshet, Ilya Gurwich
We analyze the IceCube four-year neutrino data in search of a signal from the Fermi bubbles. No signal is found from the bubbles or from their dense shell, even when taking into ac…
Fermi bubbles: high latitude X-ray supersonic shell
Uri Keshet, Ilya Gurwich
The nature of the bipolar, -ray Fermi bubbles (FB) is still unclear, in part because their faint, high-latitude X-ray counterpart has until now eluded a clear detection. We stac…