Theoretical astrophysics and plasma physics at RPC

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Beam optics of RF ion sources in view of ITER’s NBI systems

Nuclear Fusion IOP Publishing 64:7 (2024) 076046

Authors:

N den Harder, M Barnes, B Heinemann, M Lindqvist, R Nocentini, G Orozco, C Wimmer, D Wünderlich, U Fantz, P Veltri
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MONKES: a fast neoclassical code for the evaluation of monoenergetic transport coefficients in stellarator plasmas

Nuclear Fusion IOP Publishing 64:7 (2024) 076030

Authors:

FJ Escoto, JL Velasco, I Calvo, M Landreman, FI Parra
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Measurement of zero-frequency fluctuations generated by coupling between Alfven modes in the JET tokamak

(2024)

Authors:

Juan Ruiz Ruiz, Jeronimo Garcia, Michael Barnes, Mykola Dreval, Carine Giroud, Valerian H Hall-Chen, Michael R Hardman, Jon C Hillesheim, Yevgen Kazakov, Samuele Mazzi, Felix I Parra, Bhavin S Patel, Alexander A Schekochihin, Ziga Stancar, the JET Contributors, the EUROfusion Tokamak Exploitation Team
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Dynamical evolution of Milky Way globular clusters on the cosmological timescale I. Mass loss and interaction with the nuclear star cluster

ArXiv 2406.18987 (2024)

Authors:

M Ishchenko, P Berczik, T Panamarev, D Kuvatova, M Kalambay, A Gluchshenko, O Veles, M Sobolenko, O Sobodar, C Omarov
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Cosmic-ray confinement in radio bubbles by micromirrors

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 532:2 (2024) 2098-2107

Authors:

Robert J Ewart, Patrick Reichherzer, Archie FA Bott, Matthew W Kunz, Alexander A Schekochihin

Abstract:

Radio bubbles, ubiquitous features of the intracluster medium around active galactic nuclei, are known to rise buoyantly for multiple scale heights through the intracluster medium (ICM). It is an open question how the bubbles can retain their high-energy cosmic-ray content over such distances. We propose that the enhanced scattering of cosmic rays due to micromirrors generated in the ICM is a viable mechanism for confining the cosmic rays within bubbles and can qualitatively reproduce their morphology. We discuss the observational implications of such a model of cosmic-ray confinement.
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