6 papers
Formation and rising phase of a flux rope through data-constrained simulations
M. V. Sieyra, A. Strugarek, A. Prasad +8
Context. Data-constrained models incorporate observed photospheric magnetic fields. However, due to the lack of magnetic field information in the rest of the solar atmosphere, mode…
Forecasting the solar cycle using variational data assimilation: validation on cycles 22 to 25
L. Jouve, C. P. Hung, A. S. Brun +5
Forecasting future solar activity has become crucial in our modern world, where intense eruptive phenomena mostly occurring during solar maximum are likely to be strongly damaging…
Global Turbulent Solar Convection: a Numerical Path Investigating Key Force Balances in the context of the Convective Conundrum
Quentin Noraz, Allan Sacha Brun, Antoine Strugarek
Understanding solar turbulent convection and its influence on differential rotation has been a challenge over the past two decades. Current models often overestimate giant convecti…
Magnetized winds of M-type stars and star-planet magnetic interactions: uncertainties and modeling strategy
Victor Réville, Jamie M. Jasinski, Marco Velli +6
M-type stars are the most common stars in the universe. They are ideal hosts for the search of exoplanets in the habitable zone (HZ), as their small size and low temperature make t…
On stellar hotspots due to star-planet magnetic interactions: How much power can actually be transmitted to the chromosphere?
Arghyadeep Paul, Antoine Strugarek, Victor Réville
Star-Planet Magnetic Interactions (SPMI) have been proposed as a mechanism for generating stellar hot-spots with energy outputs on the order of watts. This interaction…
Ohmic heating in the upper atmosphere of hot exoplanets The influence of a time-varying magnetic field
A. Strugarek, A. GarcÃa Muñoz, A. S. Brun +1
Exoplanets on close-in orbit are subject to intense X-ray and ultraviolet (XUV) irradiation from their star. Their atmosphere therefore heats up, sometimes to the point where it th…