Eleonora Puzzoni
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View article: Solar Disk Gamma-Ray Emission via Synthetic Magnetic Field from Photosphere to Low Corona
Solar Disk Gamma-Ray Emission via Synthetic Magnetic Field from Photosphere to Low Corona Open
Gamma-ray emission in the GeV–TeV range from the solar disk is likely to arise from collisions of galactic cosmic rays (GCRs) with solar atmospheric plasma. In a previous study, we demonstrated that closed turbulent magnetic arcades trap G…
View article: Solar disk gamma-rays emission via synthetic magnetic field from photosphere to low corona
Solar disk gamma-rays emission via synthetic magnetic field from photosphere to low corona Open
Gamma-ray emission in the GeV-TeV range from the solar disk is likely to arise from collisions of galactic cosmic rays (GCRs) with solar atmospheric plasma. In a previous study, we demonstrated that closed turbulent magnetic arcades trap e…
View article: Hybrid Simulations of Interstellar Pickup Ions at the Solar Wind Termination Shock Revisited
Hybrid Simulations of Interstellar Pickup Ions at the Solar Wind Termination Shock Revisited Open
We revisit previous hybrid simulations of the heating and acceleration of interstellar pickup ions (PUIs) at the solar wind termination shock. In previous simulations, a relatively cold initial distribution of PUIs was assumed; and while t…
View article: PyPLUTO: a data analysis Python package for the PLUTO code
PyPLUTO: a data analysis Python package for the PLUTO code Open
In recent years, numerical simulations have become indispensable for addressing complex astrophysical problems. The MagnetoHydroDynamics (MHD) framework represents a key tool for investigating the dynamical evolution of astrophysical plasm…
View article: Role of Magnetic Arcades in Explaining the Puzzle of the Gamma-Ray Emission from the Solar Disk
Role of Magnetic Arcades in Explaining the Puzzle of the Gamma-Ray Emission from the Solar Disk Open
The interpretation of gamma-ray emission originating from the solar disk (0.5° in angular size) as due to the interaction of Galactic Cosmic Rays (GCRs) with the solar atmosphere has remained a central challenge in solar physics. After the…
View article: Modeling the gamma-ray emission from the Sun
Modeling the gamma-ray emission from the Sun Open
Despite its very close proximity to Earth and considerable previous study, there remain many unsolved puzzles about the Sun. One such example of significant recent interest relates to the GeV-TeV gamma-ray emission from the solar disk. Ind…
View article: TeV Cosmic Rays Around the Sun: Sun’s Shadow and Solar Gamma Rays
TeV Cosmic Rays Around the Sun: Sun’s Shadow and Solar Gamma Rays Open
High rigidity cosmic rays in the TeV range offer a unique tool in the exploration of the magnetic field structure close to the Sun. TeV protons are essentially unmodulated at Earth’s orbit but can be significantly deflected by the strong m…
View article: The impact of resistive electric fields on particle acceleration in reconnection layers
The impact of resistive electric fields on particle acceleration in reconnection layers Open
In the context of particle acceleration in high-energy astrophysical environments featuring magnetic reconnection, the importance of the resistive term of the electric field compared to the convective one is still under debate. In this wor…
View article: On the impact of the numerical method on magnetic reconnection and particle acceleration – I. The MHD case
On the impact of the numerical method on magnetic reconnection and particle acceleration – I. The MHD case Open
We present 2D magnetohydrodynamics numerical simulations of tearing-unstable current sheets coupled to a population of non-thermal test particles, in order to address the problem of numerical convergence with respect to grid resolution, nu…
View article: On the Impact of the Numerical Method on Magnetic Reconnection and Particle Acceleration -- I. The MHD case
On the Impact of the Numerical Method on Magnetic Reconnection and Particle Acceleration -- I. The MHD case Open
We present 2D MHD numerical simulations of tearing-unstable current sheets coupled to a population of non-thermal test-particles, in order to address the problem of numerical convergence with respect to grid resolution, numerical method an…
View article: Particle-Gas Hybrid Schemes in the PLUTO Code
Particle-Gas Hybrid Schemes in the PLUTO Code Open
Hybrid codes treating composite systems made up of fluid and particle components are becoming increasing more popular in order to address multiple scale in complex astrophysical environments. Here we review some recent additions to the PLU…