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Acceleration of Electrons and Ions by an “Almost” Astrophysical Shock in the Heliosphere

  • Authors: Immanuel Christopher Jebaraj, Oleksiy Agapitov, Vladimir Krasnoselskikh, Laura Vuorinen, Michael Gedalin, Kyung-Eun Choi, Erika Palmerio, Nicolas Wijsen, Nina Dresing, Christina Cohen, Athanasios Kouloumvakos, Michael Balikhin, Rami Vainio, Emilia Kilpua, Alexandr Afanasiev, Jaye Verniero, John Grant Mitchell, Domenico Trotta, Matthew Hill, Nour Raouafi, Stuart D. Bale

Immanuel Christopher Jebaraj et al 2024 The Astrophysical Journal Letters 968 .

  • Provider: AAS Journals

Caption: Figure 5.

In situ arrival of the shock as observed through high-frequency electric field data from the FIELDS/RFS. The top panel displays the coherence spectra, while the middle panel presents the normalized linear polarization, Stokes Q/I. The estimated upstream and downstream plasma frequencies (ω pe) are indicated by horizontal black lines, with arrows highlighting the observed electrostatic waves. The bottom panel juxtaposes the estimated electron density (n e)—with the range of uncertainty depicted as a red shaded area—against the ion density measured by SPAN-i.

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