57 citations · 118 across the 7 of their papers we have counts for
7 papers
Shock oscillation model for QPOs in stellar-mass and supermassive black holes
T. Okuda, V. Teresi, D. Molteni
We numerically examine centrifugally supported shock waves in 2D rotating accretion flows around a stellar-mass (10M_sun) and a supermassive (10^6M_sun) black holes over a wide ran…
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…
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…
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…
Black-Hole Accretion Discs and Jets at Super-Eddington Luminosity
T. Okuda, V. Teresi, E. Toscano +1
Super-Eddington accretion discs with 3 and 15 dot M_E around black holes with mass 10 M_sun are examined by two-dimensional radiation hydrodynamical calculations extending from the…
Ab initio simulations of accretion disks instability
V. Teresi, D. Molteni, E. Toscano
We show that accretion disks, both in the subcritical and supercritical accretion rate regime, may exhibit significant amplitude luminosity oscillations. The luminosity time behavi…