161 citations · 664 across the 18 of their papers we have counts for
18 papers
MHD study of extreme space weather conditions for exoplanets with Earth-like magnetospheres: On habitability conditions and radio-emission
J. Varela, A. S. Brun, P. Zarka +3
The present study aims at characterizing the habitability conditions of exoplanets with an Earth-like magnetosphere inside the habitable zone of M stars and F stars like tau Boo, c…
HelioCast: heliospheric forecasting based on white-light observations of the solar corona. I. Solar minimum conditions
Victor Réville, Nicolas Poirier, Athanasios Kouloumvakos +8
We present a new 3D MHD heliospheric model for space-weather forecasting driven by boundary conditions defined from white-light observations of the solar corona. The model is based…
Acceleration of polytropic solar wind: Parker Solar Probe observation and one-dimensional model
Chen Shi, Marco Velli, Stuart D. Bale +3
The acceleration of the solar coronal plasma to supersonic speeds is one of the most fundamental yet unresolved problem in heliophysics. Despite the success of Parker's pioneering…
Thin current sheet formation: comparison between Earth's magnetotail and coronal streamers
Anton Artemyev, Victor Reville, Ivan Zimovets +4
Magnetic field line reconnection is a universal plasma process responsible for the magnetic field topology change and magnetic field energy dissipation into charged particle heatin…
Validation of a wave heated 3D MHD coronal-wind model using Polarized Brightness and EUV observations
Susanna Parenti, Victor Réville, Allan Sacha Brun +5
The physical properties responsible for the formation and evolution of the corona and heliosphere are still not completely understood. 3D MHD global modeling is a powerful tool to…
MHD study of planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications
J. Varela, A. S. Brun, A. Strugarek +3
Context: The stellar wind and the interplanetary magnetic field modify the topology of planetary magnetospheres. Consequently, the hazardous effect of the direct exposition to the…
Dynamical coupling of a mean-field dynamo and its wind: Feedback loop over a stellar activity cycle
Barbara Perri, Allan Sacha Brun, Antoine Strugarek +1
We focus on the connection between the internal dynamo magnetic field and the stellar wind. If the star has a cyclic dynamo, the modulations of the magnetic field can affect the wi…
Modeling Solar Wind Variations over an 11-yr Cycle with Alfvén Wave Dissipation: a Parameter Study
Soumitra Hazra, Victor Réville, Barbara Perri +3
We study the behaviour and properties of the solar wind using a 2.5D Alfvén wave driven wind model. We first systematically compare the results of an Alfvén wave (AW) driven wind m…
Relating streamer flows to density and magnetic structures at the Parker Solar Probe
Alexis P. Rouillard, Athanasios Kouloumvakos, Angelos Vourlidas +34
The physical mechanisms that produce the slow solar wind are still highly debated. Parker Solar Probe's (PSP's) second solar encounter provided a new opportunity to relate in situ…
Magnetic field kinks and folds in the solar wind
Anna Tenerani, Marco Velli, Lorenzo Matteini +18
Parker Solar Probe (PSP) observations during its first encounter at 35.7 have shown the presence of magnetic field lines which are strongly perturbed to the point that th…
Magnetic connectivity of the ecliptic plane within 0.5 AU : PFSS modeling of the first PSP encounter
Samuel T. Badman, Stuart D. Bale, Juan C. Martinez Oliveros +19
We compare magnetic field measurements taken by the FIELDS instrument on Parker Solar Probe (PSP) during its first solar encounter to predictions obtained by Potential Field Source…
The dynamo-wind feedback loop: Assessing their non-linear interplay
Barbara Perri, Allan Sacha Brun, Antoine Strugarek +1
Though generated deep inside the convection zone, the solar magnetic field has a direct impact on the Earth space environment via the Parker spiral. It strongly modulates the solar…
Could star-planet magnetic interactions lead to planet migration and influence stellar rotation ?
Jérémy Ahuir, Antoine Strugarek, Allan-Sacha Brun +5
The distribution of hot Jupiters, for which star-planet interactions can be significant, questions the evolution of exosystems. We aim to follow the orbital evolution of a planet a…
The role of Alfvén wave dynamics on the large scale properties of the solar wind: comparing an MHD simulation with PSP E1 data
Victor Réville, Marco Velli, Olga Panasenco +18
During Parker Solar Probe's first orbit, the solar wind plasma has been observed in situ closer than ever before, the perihelion on November 6th 2018 revealing a flow that is const…
Simulations of solar wind variations during an 11-year cycle and the influence of north-south asymmetry
Barbara Perri, Allan Sacha Brun, Victor Réville +1
We want to study the connections between the magnetic field generated inside the Sun and the solar wind impacting Earth, especially the influence of north-south asymmetry on the ma…
Parametric decay and the origin of the low frequency Alfvénic spectrum of the solar wind
Réville Victor, Tenerani Anna, Velli Marco
The fast solar wind shows a wide spectrum of transverse magnetic and velocity field perturbations. These perturbations are strongly correlated in the sense of Alfvén waves propagat…
Radio emission in Mercury magnetosphere
J. Varela, V. Reville, A. S. Brun +2
Context: Active stars possess magnetized wind that has a direct impact on planets that can lead to radio emission. Mercury is a good test case to study the effect of the solar wind…
Modeling magnetized star-planet interactions: boundary conditions effects
Antoine Strugarek, Allan S. Brun, Sean P. Matt +1
We model the magnetized interaction between a star and a close-in planet (SPMIs), using global, magnetohydrodynamic numerical simulations. In this proceedings, we study the effects…