activity
20052026
most citedHead-on collisions of white dwarfs in triple systems could explain type Ia supernova

277 citations · 3.2k across the 66 of their papers we have counts for

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6 papers · 1 filter

astro-ph2008★ 63 cited

The energy production rate & the generation spectrum of UHECRs

Boaz Katz, Ran Budnik, Eli Waxman

We derive simple analytic expressions for the flux and spectrum of ultra-high energy cosmic-rays (UHECRs) predicted in models where the CRs are protons produced by extra-Galactic s…

astro-ph2008★ 153 cited

Magnetic field evolution in relativistic unmagnetized collisionless shocks

Uri Keshet, Boaz Katz, Anatoly Spitkovsky +1

We study relativistic unmagnetized collisionless shocks using unprecedentedly large particle-in-cell simulations of two-dimensional pair plasma. High energy particles accelerated b…

astro-ph2008★ 25 cited

X-ray Hotspot Flares and Implications for Cosmic Ray Acceleration and Magnetic Field amplification in Supernova Remnants

Yousaf Butt, Troy Porter, Boaz Katz +1

For more than fifty years, it has been believed that cosmic ray (CR) nuclei are accelerated to high energies in the rapidly expanding shockwaves created by powerful supernova explo…

astro-ph2007★ 98 cited

In which shell-type SNRs should we look for gamma-rays and neutrinos from p-p collisions?

Boaz Katz, Eli Waxman

We present a simple analytic model for the various contributions to the non-thermal emission from shell type SNRs, and show that this model's results reproduce well the results of…

astro-ph2007★ 60 cited

Cosmic rays from trans-relativistic supernovae

R. Budnik, B. Katz, A. MacFadyen +1

We derive constraints that must be satisfied by the sources of ~10^{15} to ~10^{18} eV cosmic rays, under the assumption that the sources are Galactic. We show that while these con…

astro-ph2006★ 35 cited

Self-Similar Collisionless Shocks

Boaz Katz, Uri Keshet, Eli Waxman

Observations of gamma-ray burst afterglows suggest that the correlation length of magnetic field fluctuations downstream of relativistic non-magnetized collisionless shocks grows w…