57 citations · 212 across the 10 of their papers we have counts for
10 papers
Pulse profiles from thermally emitting neutron stars
R. Turolla, L. Nobili
The problem of computing the pulse profiles from thermally emitting spots on the surface of a neutron star in general relativity is reconsidered. We show that it is possible to ext…
Power-law Tails from Dynamical Comptonization in Converging Flows
Roberto Turolla, Silvia Zane, Lev Titarchuk
The effects of bulk motion comptonization on the spectral formation in a converging flow onto a black hole are investigated. The problem is tackled by means of both a fully relativ…
Spectra of thermally unstable slim discs
Ewa Szuszkiewicz, Roberto Turolla, Luca Zampieri
Thermal instability driven by radiation pressure might be relevant for intrinsically bright accreting sources. The most promising candidate where this instability seems to be at wo…
A Comptonization Model for Phase Lag Variability in GRS 1915+105
L. Nobili, R. Turolla, L. Zampieri +1
In this Letter we propose a simple thermal comptonization model to account for the observed properties of the phase lags associated to the ``plateau'' intervals of GRS 1915+105. By…
An efficient algorithm for two-dimensional radiative transfer in axisymmetric circumstellar envelopes and disks
C. P. Dullemond, R. Turolla
We present an algorithm for two-dimensional radiative transfer in axisymmetric, circumstellar media. The formal integration of the transfer equation is performed by a generalizatio…
Time--dependent analysis of spherical accretion onto black holes
Luca Zampieri, John C. Miller, Roberto Turolla
Results are presented from a time--dependent, numerical investigation of spherical accretion onto black holes, within the framework of relativistic radiation hydrodynamics. We have…