3 papers
astro-ph2005
Steady shocks around black holes produced by sub-keplerian flows with negative energy
D. Molteni, G. Gerardi, V. Teresi
We discuss a special case of formation of axisymmetric shocks in the accretion flow of ideal gas onto a Schwarzschild black hole: when the total energy of the flow is negative. The…
astro-ph2005
A simple model of radiative emission in M87
E. Vitanza, V. Teresi, D. Molteni +1
We present a simple physical model of the central source emission in the M87 galaxy. It is well known that the observed X-ray luminosity from this galactic nucleus is much lower th…
astro-ph2005
3D SPH Simulations of Shocks in Accretion Flows around black holes
G. Gerardi, D. Molteni, V. Teresi
We present the simulation of 3D time dependent flow of rotating ideal gas falling into a Schwarzschild black hole. It is shown that also in the 3D case steady shocks are formed in…