Silvio Sergio Cerri
Space and Astrophysical Plasmas

Department of Astrophysical Sciences, Princeton University
4 Ivy Lane, Princeton, NJ 08540, USA
Peyton Hall, Room 119
phone: +1 609-258-0428
e-mail: scerri(AT)astro.princeton.edu

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I have moved to: Laboratoire J.-L. Lagrange Observatoire de la Côte d'Azur Nice, France --> NEW WEBSITE <--

CV Publications (see also: Google Scholar ; NASA ADS ) My Public Codes Research Interests

Latest research highlights: Stochastic heating (and beyond) in low-β kinetic turbulence (3D hybrid-kinetic simulations of continuously driven turbulence; β = 0.1 and 0.3) Non-ideal effects are important at kinetic scales, aren't they? Discover how we refine the ion-heating model (and denote its phase-space signatures) in low-β plasma turbulence in our recently accepted paper! Cerri, Arzamasskiy & Kunz, ApJ (in press) A self-consistent calculation of cosmic-ray scattering on pre-existing MHD modes...meets data! (CR-transport simulations with DRAGON, implementing self-consistent diffusion coefficients and most-updated CR cross sections) Can you explain cosmic-ray abundances above 200 GeV without fast-magnetosonic turbulence? Short answer: Apparently, not at all! Long answer: check out our new paper where we have confronted a theory describing Galactic cosmic-ray transport with actual CR local data! Fornieri, Gaggero, Cerri, De La Torre & Gabici, MNRAS (2021)

Other research highlights:

Energy conversion and transfer in quasi-neutral hybrid-kinetic models ("space-filter techniques" for hybrid-kinetic models) What are the energy channels in hybrid-kinetic models? how do they behave in different approximations and how turbulent fluctuations mediate the transfer of energy through scales within these channels? The answer to these questions can be found by applying a "coarse-graining approach" to the hybrid-kinetic equations: check them out in this recently published paper! Cerri & Camporeale, PoP 27, 082102 (2020) Kinetic Plasma Turbulence: Recent Insights and Open Questions From 3D3V Simulations *** OPEN ACCESS! *** What is the nature of sub-ion-scale plasma turbulence? Is turbulence in this range somewhat "universal"? Check out what is our current understanding of kinetic plasma turbulence and what are possible future directions for this field in this recently published paper! Cerri, Groselj & Franci, FSPAS 6, 64 (2019) Dual phase-space anisotropic cascades in 3D-3V hybrid-Vlasov-Maxwell turbulence (with electron inertia; beta = 1) 3 dimensions aren't enough? explore the wonderland of six-dimensional (anisotropic) turbulence in kinetic plasmas! Cerri, Kunz & Califano, ApJL 856, L13 (2018) First suggestion of a connection between magnetic reconnection and turbulent energy transfer (aka "reconnection-mediated turbulence") in kinetic plasmas! (2D-3V HVM driven turbulence) Tired of the old, standard paradigms? For the first time we suggest a link between magnetic reconnection and the ion-break/sub-ion-gyroradius cascade in turbulent plasmas. Find out more about this brand new paradigm that has opened a complete new point of view (and research branch) in plasma turbulence! Cerri & Califano, NJP 19, 025007 (2017) (!) see also: Franci et al., ApJL 850, L16 (2017) [further (explicit) numerical confirmation] A signature of anisotropic cosmic-ray transport in the gamma-ray sky from Fermi-LAT? ('2.5D' simulations with the DRAGON code) Magnetic fields are important, aren't they? Interpreting Fermi-LAT anomalies in gamma-ray data at different positions in the Galaxy with anisotropic models of cosmic-ray transport! Cerri et al., JCAP 10, 019 (2017) 3D-3V hybrid-Vlasov-Maxwell simulations of kinetic cascades in solar-wind turbulence (with electron inertia; beta = 0.2 and 1) discover how the nature of turbulent fluctuations in the kinetic range changes depending on the plasma beta! Cerri, Servidio & Califano, ApJL 846, L18 (2017) (!) see also: Cerri et al., ApJL 822, L12 (2016) [2D-3V driven HVM turbulence; β = 0.2, 1 and 5]