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Collisionless Magnetic Reconnection and Waves: Progress Review
Khotyaintsev, Yuri V.; Graham, Daniel B.; Vaivads, Andris +1 more
Magnetic reconnection is a fundamental process whereby microscopic plasma processes cause macroscopic changes in magnetic field topology, leading to explosive energy release. Waves and turbulence generated during the reconnection process can produce particle diffusion, and anomalous resistivity, as well as heat the plasma and accelerate plasma par…
Multipoint Observations of the June 2012 Interacting Interplanetary Flux Ropes
Poedts, Stefaan; Futaana, Yoshifumi; Palmerio, Erika +10 more
In this paper we perform a detailed analysis of interplanetary flux ropes observed between June 15-17, 2012 at Venus and subsequently at Earth's Lagrange L1 point, while the observation points were separated by about 0.28 AU in radial distance and 5° in heliographic longitude. The flux ropes were associated with coronal mass ejections (CMEs) that …
An observer's view on the future of asteroseismology
Paparó, Margit
Scientific research is a continuous process, and the speed of future progress can be estimated by the pace of finding explanations for previous research questions. In this observer's based view of stellar pulsation and asteroseismology, we start with the earliest observations of variable stars and the techniques used to observe them. The earliest …
Mutual impedance probe in collisionless unmagnetized plasmas with suprathermal electrons - Application to BepiColombo
Henri, Pierre; Myllys, Minna; Béghin, Christian +4 more
Mutual impedance experiments are active electric probes providing in-situ space plasma measurements. Such active experiments consist of a set of electric antennas used as transmitter(s) and receivers(s) through which various dielectric properties of the plasma can be probed, giving therefore access to key plasma parameters such as, for instance, t…
High-frequency dynamics of an active region moss as observed by IRIS
Van Doorsselaere, Tom; Pant, Vaibhav; Banerjee, Dipankar +1 more
The high temporal, spatial and spectral resolution of Interface Region Imaging Spectrograph (IRIS) has provided new insights into the understanding of different small-scale processes occurring at the chromospheric and transition region (TR) heights. We study the dynamics of high-frequency oscillations of an active region (AR 2376) moss as recorded…
Active experiments beyond the Earth: Plasma effects of sounding radar operations in the ionospheres of Venus, Mars, and the Jovian system
Barabash, Stas; Holmstrom, Mats; Frahm, Rudy A. +1 more
Operation of powerful satellite- and rocket-born sounding radars is often accompanied by a heating/acceleration of the local electrons and ions. Intense fluxes of sounder accelerated particles were detected in Earth's ionosphere when the frequency of the radar transmitter was close to one of the fundamental plasma resonances: harmonic of the elect…