97 citations · 230 across the 10 of their papers we have counts for
10 papers
On the Effect of Large Scale Structures and Turbulence on Solar Eruptive Events: The Cross-Scale Challenge for Space Weather
Alessandro Ippolito, Giuseppe Prete, Nicolas Wijsen +4
Coronal Mass Ejections (CMEs) are among the most powerful drivers of space weather, yet their prediction remains elusive. A fundamental obstacle is the problem's multiscale nature:…
Hybrid simulations of the proton beam instabilities in the young solar wind. The formation of hammerhead-like distributions
R. A. López, Shaaban M. Shaaban, M. Lazar +4
Parker Solar Probe (PSP) observations in the young solar wind reveal new properties of both plasma particle velocity distributions (VDs) and associated electromagnetic (EM) wave fl…
Modeling complex plasma instabilities in space plasmas - Three-component electron formalism of heat-flux instabilities
Dustin L. Schröder, Marian Lazar, Horst Fichtner +2
Despite the fact that electrons observed in situ in space plasmas have three major components-the quasi-thermal core, suprathermal halo, and strahl-the analysis of instabilities tr…
Kinetic-based macro-modeling of the solar wind at large heliocentric distances: Kappa electrons at the exobase
Alexander Vinogradov, Marian Lazar, Ioannis Zouganelis +2
Recent evidence from Parker Solar Probe on the suprathermal electrons with Kappa-type velocity distributions in the outer corona has revived interest in the kinetic-based macro-mod…
Comprehensive MHD modelling of ten successive CMEs driving a historic geomagnetic storm -- The 2024 Mothers Day event
Shirsh Lata Soni, Anwesha Maharana, Sanchita Pal +1
Interacting coronal mass ejections (CMEs) result in complex heliospheric structures that can dramatically enhance their geoeffectiveness compared to isolated events. A striking exa…
Instability constraints for the electron temperature anisotropy in the slow solar wind. Thermal core vs. suprathermal halo
M. Lazar, S. M. Shaaban, V. Pierrard +2
This letter presents the results of an advanced parametrization of the solar wind electron temperature anisotropy and the instabilities resulting from the interplay of the (bi-)Max…
Dual Maxwellian-Kappa modelling of the solar wind electrons: new clues on the temperature of Kappa populations
M. Lazar, V. Pierrard, S. M. Shaaban +2
Context. Recent studies on Kappa distribution functions invoked in space plasma applications have emphasized two alternative approaches which may assume the temperature parameter e…
The Electron Temperature and Anisotropy in the Solar Wind. I. Comparison of the Core and Halo Populations
V. Pierrard, M. Lazar, S. Poedts +3
Estimating the temperature of the solar wind particles and their anisotropies is particularly important for understanding the origin of these deviations from thermal equilibrium as…
Modeling space plasma dynamics with anisotropic Kappa distributions
M. Lazar, V. Pierrard, S. Poedts +1
Space plasmas are collisionpoor and kinetic effects prevail leading to wave fluctuations, which transfer the energy to small scales: wave-particle interactions replace collisions a…
Is the Weibel instability enhanced by the suprathermal populations, or not?
M. Lazar, R. Schlickeiser, S. Poedts
The kinetic instabilities of the Weibel-type are presently invoked in a large variety of astrophysical scenarios because anisotropic plasma structures are ubiquitous in space. The…