370 citations · 490 across the 5 of their papers we have counts for
5 papers
Internal shocks in the jets of radio-loud quasars
Maddalena Spada, Gabriele Ghisellini, Davide Lazzati +1
The central engine causing the production of jets in radio sources may work intermittently, accelerating shells of plasma with different mass, energy and velocity. Faster but later…
On the Neutrino Flux from Gamma-Ray Bursts
D. Guetta, M. Spada, E. Waxman
Observations imply that gamma-ray bursts (GRBs) are produced by the dissipation of the kinetic energy of a highly relativistic fireball. Photo-meson interactions of protons with ga…
Internal shocks in the jets of blazars
Maddalena Spada, Davide Lazzati, Gabriele Ghisellini +1
The development of instabilities leading to the formation of internal shocks is expected in the relativistic outflows of both gamma-ray bursts and blazars. The shocks heat the expa…
High Observed Brightnesses in Radio Jets
M. Spada, M. Salvati, F. Pacini
We study the variability properties at radio frequencies of the jets thought to be typical of Active Galactic Nuclei, i.e. bulk Lorentz factor Γ~ 10, and incoherent synchrotron emi…
Rapid Variability of Gamma-Ray Blazars: A Model for MKN 421
M. Salvati, M. Spada, F. Pacini
The extremely rapid burst of TeV photons from Mkn 421 (15 May 1996) can be reconciled with the standard properties of a relativistic gamma-ray emitting jet (bulk Lorentz factor $\a…