253 citations · 548 across the 7 of their papers we have counts for
7 papers
Delayed Hard Photons from Gamma-Ray Bursts
J. I. Katz
The delayed hard (up to 25 GeV) photons observed more than an hour following a gamma-ray burst on February 17, 1994 may result from the collisions of relativistic nucleons with a d…
Yet Another Model of Soft Gamma Repeaters
J. I. Katz, H. A. Toole, S. H. Unruh
We develop a model of SGR in which a supernova leaves planets orbiting a neutron star in intersecting eccentric orbits. These planets will collide in years if their orb…
Low Frequency Spectra of Gamma-Ray Bursts
J. I. Katz
Particles with energies below the mean energy in relativistic shocked plasmas should assume an equilibrium energy distribution. This leads to a synchrotron spectrum $F_ν\prop…
Radio and Optical Emission, Spectral Shapes and Breaks in GRB
J. I. Katz
Relativistic blast wave models predict the spectrum of the emitted synchrotron radiation. The electrons in the shocked region are heated to a Wien distribution whose ``temperature'…
Two Populations and Models of Gamma Ray Bursts
J. I. Katz
Gamma-ray burst statistics are best explained by a source population at cosmological distances, while spectroscopy and intensity histories of some individual bursts imply an origin…
Particle Acceleration in (by) Accretion Discs
J. I. Katz
I present a model for acceleration of protons by the second-order Fermi process acting on randomly scrambled magnetic flux arches above an accretion disc. The accelerated protons c…