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Temperature and density profiles in the corona of main-sequence stars induced by stochastic heating in the chromosphere
Luca Barbieri, Lapo Casetti, Andrea Verdini +1
All but the most massive main-sequence stars are expected to have a rarefied and hot (million-Kelvin) corona like the Sun. How such a hot corona is formed and supported has not bee…
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…
Temperature inversion in a confined plasma atmosphere: coarse-grained effect of temperature fluctuations at its base
Luca Barbieri, Emanuele Papini, Pierfrancesco Di Cintio +3
Prompted by the relevant problem of temperature inversion (i.e. gradient of density anti-correlated to the gradient of temperature) in astrophysics, we introduce a novel method to…