376 citations · 2.5k across the 36 of their papers we have counts for
36 papers
A Fourth-Order Finite Volume Scheme for Resistive Relativistic Magnetohydrodynamics
Andrea Mignone, Vittoria Berta, Marco Rossazza +4
We present a finite-volume, genuinely 4th-order accurate numerical method for solving the equations of resistive relativistic magnetohydrodynamics (Res-RMHD) in Cartesian coordinat…
Magnetic dissipation in short gamma-ray burst jets. I. Resistive relativistic MHD evolution in a model environment
Giancarlo Mattia, Luca Del Zanna, Andrea Pavan +1
Short gamma-ray bursts originate when relativistic jets emerge from the remnants of binary neutron star mergers. Both the jet and the remnant are believed to be strongly magnetized…
A GPU-Accelerated Modern Fortran Version of the ECHO Code for Relativistic Magnetohydrodynamics
Luca Del Zanna, Simone Landi, Lorenzo Serafini +2
The numerical study of relativistic magnetohydrodynamics (MHD) plays a crucial role in high-energy astrophysics, but unfortunately is computationally demanding, given the complex p…
Resistive relativistic MHD simulations of astrophysical jets
Giancarlo Mattia, Luca Del Zanna, Matteo Bugli +4
Aims. The main goal of the present paper is to provide the first systematic numerical study of the propagation of astrophysical relativistic jets, in the context of high-resolution…
Fast magnetic reconnection: The "ideal" tearing instability in classic, Hall, and relativistic plasmas
Emanuele Papini, Simone Landi, Luca Del Zanna
Magnetic reconnection is believed to be the driver of many explosive phenomena in Astrophysics, from solar to gamma-ray flares in magnetars and in the Crab nebula. However, reconne…
Modeling the effect of small-scale magnetic turbulence on the X-ray properties of Pulsar Wind Nebulae
N. Bucciantini, R. Bandiera, B. Olmi +1
Pulsar Wind Nebulae (PWNe) constitute an ideal astrophysical environment to test our current understanding of relativistic plasma processes. It is well known that magnetic fields p…
Multidimensional relativistic MHD simulations of Pulsar Wind Nebulae: dynamics and emission
Luca Del Zanna, Barbara Olmi
Pulsar Wind Nebulae, and the Crab nebula in particular, are the best cosmic laboratories to investigate the dynamics of magnetized relativistic outflows and particle acceleration u…
Multi-D magnetohydrodynamic modelling of pulsar wind nebulae: recent progress and open questions
B. Olmi, L. Del Zanna, E. Amato +2
In the last decade, the relativistic magnetohydrodynamic (MHD) modelling of pulsar wind nebulae, and of the Crab nebula in particular, has been highly successful, with many of the…
Activation of MHD reconnection on ideal timescales
S. Landi, E. Papini, L. Del Zanna +2
Magnetic reconnection in laboratory, space and astrophysical plasmas is often invoked to explain explosive energy release and particle acceleration. However, the timescales involve…
Numerical magneto-hydrodynamics for relativistic nuclear collisions
Gabriele Inghirami, Luca Del Zanna, Andrea Beraudo +3
We present an improved version of the ECHO-QGP numerical code, which self-consistently includes for the first time the effects of electromagnetic fields within the framework of rel…
Quark deconfinement in the proto-magnetar model of Long Gamma-Ray Bursts
A. G. Pili, N. Bucciantini, A. Drago +2
We investigate the possible implications of quark deconfinement on the phenomenology of Long Gamma-Ray Bursts focusing, in particular, on the possibility to describe multiple promp…
Fast reconnection in relativistic plasmas: the magnetohydrodynamics tearing instability revisited
L. Del Zanna, E. Papini, S. Landi +2
Fast reconnection operating in magnetically dominated plasmas is often invoked in models for magnetar giant flares, for magnetic dissipation in pulsar winds, or to explain the gamm…
Modeling the structure of magnetic fields in Neutron Stars: from the interior to the magnetosphere
N. Bucciantini, A. G. Pili, L. Del Zanna
The phenomenology of the emission of pulsars and magnetars depends dramatically on the structure and properties of their magnetic field. In particular it is believed that the outbu…
A study of vorticity formation in high energy nuclear collisions
F. Becattini, G. Inghirami, V. Rolando +6
We present a quantitative study of vorticity formation in peripheral ultrarelativistic heavy ion collisions at sqrt(s)NN = 200 GeV by using the ECHO-QGP numerical code, implementin…
The role of currents distribution in general relativistic equilibria of magnetized neutron stars
N. Bucciantini, A. G. Pili, L. Del Zanna
Magnetic fields play a critical role in the phenomenology of neutron stars. There is virtually no observable aspect which is not governed by them. Despite this, only recently effor…
General relativistic neutron stars with twisted magnetosphere
A. G. Pili, N. Bucciantini, L. Del Zanna
Soft Gamma-Ray Repeaters and Anomalous X-Ray Pulsars are extreme manifestations of the most magnetized neutron stars: magnetars. The phenomenology of their emission and spectral pr…
A perturbative approach to the hydrodynamics of heavy ion collisions
Stefan Floerchinger, Urs Achim Wiedemann, Andrea Beraudo +3
Initial fluctuations in hydrodynamic fields such as energy density or flow velocity give access to understanding initial state and equilibration physics as well as thermodynamic an…
Heavy Ion Collision evolution modeling with ECHO-QGP
Valentina Rolando, Gabriele Inghirami, Andrea Beraudo +5
We present a numerical code modeling the evolution of the medium formed in relativistic heavy ion collisions, ECHO-QGP. The code solves relativistic hydrodynamics in D, wit…
Parametric decay of parallel and oblique Alfven waves in the expanding solar wind
L. Del Zanna, L. Matteini, S. Landi +2
The long-term evolution of large-amplitude Alfven waves propagating in the solar wind is investigated by performing two-dimensional MHD simulations within the expanding box model.…
Numerical simulations of stellar jets and comparison between synthetic and observed maps: clues to the launch mechanism
Francesco Rubini, Lorenzo Maurri, Gabriele Inghirami +2
High angular resolution spectra obtained with the Hubble Space Telescope Imaging Spectrograph (HST/STIS) provide rich morphological and kinematical information about the stellar je…
Axisymmetric equilibrium models for magnetized neutron stars in General Relativity under the Conformally Flat Condition
A. G. Pili, N. Bucciantini, L. Del Zanna
Extremely magnetized neutron stars with magnetic fields as strong as G, or magnetars, have received considerable attention in the last decade due to their identif…
Dynamo action in thick disks around Kerr black holes: high-order resistive GRMHD simulations
M. Bugli, L. Del Zanna, N. Bucciantini
We present the first kinematic study of an -dynamo in the General Relativistic Magneto-HydroDynamics (GRMHD) regime, applied to thick disks orbiting around Kerr black holes and…
Solving the 3+1 GRMHD equations in the eXtended Conformally Flat Condition: the XNS code for magnetized neutron stars
N. Bucciantini, A. G. Pili, L. Del Zanna
High-energy phenomena in astrophysics involve quite generally a combination of relativistic motions and strong gravity. The simultaneous solution of Einstein equations and General…
High-order schemes for non-ideal GRMHD: a study of the kinematic dynamo process in accretion tori
L. Del Zanna, M. Bugli, N. Bucciantini
We present the first astrophysical application of the ECHO code in its recent version supplemented by a generalized Ohm law, namely a kinematic study of dynamo effects in thick acc…