264 citations · 371 across the 4 of their papers we have counts for
4 papers
Instability of a stalled accretion shock: evidence for the advective-acoustic cycle
T. Foglizzo, P. Galletti, L. Scheck +1
We analyze the linear stability of a stalled accretion shock in a perfect gas with a parametrized cooling function L ~ rho^{beta-alpha} P^alpha. The instability is dominated by the…
The Advective-Acoustic instability in type II Supernovae
P. Galletti, T. Foglizzo
The puzzle of birth velocities of pulsars (pulsar kicks) could be solved by an asymmetric explosion of type II Supernovae. We propose a simple hydrodynamical mechanism in order to…
A fresh look at the unstable simulations of Bondi-Hoyle-Lyttleton accretion
T. Foglizzo, P. Galletti, M. Ruffert
The instability of Bondi-Hoyle-Lyttleton accretion, observed in numerical simulations, is analyzed through known physical mechanisms and possible numerical artefacts. The mechanism…
Non-radial instability of stalled accretion shocks: advective-acoustic cycle
Thierry Foglizzo, Pascal Galletti
The linear stability of stalled accretion shocks is investigated in the context of core collapse of type II supernovae. We focus on a particular instability mechanism based on the…