

For the approximation of the footpoint separation, we followed a ballistic back-mapping approach using in situ solar wind speed measurements. We identified SEE events for which Solar Orbiter and either Wind or STEREO-A had a small longitudinal separation (< 15°) between their nominal magnetic footpoints. We study the radial evolution of near-relativistic solar energetic electron (SEE) events observed by at least two spacecraft at different heliocentric distances and with small separation angles between their magnetic footpoints at the Sun.


Universidad de Alcalá, Space Research Group (SRG-UAH), Plaza de San Diego s/n, 28801 Alcalá de Henares, Madrid, SpainĪims. Institute of Experimental and Applied Physics, Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, GermanyĮ-mail: of Physics and Astronomy, 20014 University of Turku, Finland Astronomical objects: linking to databasesĪ.Including author names using non-Roman alphabets.Suggested resources for more tips on language editing in the sciences Punctuation and style concerns regarding equations, figures, tables, and footnotes
