Fig. 3: The electron energy distributions and magnetic configuration associated with the Jovian cusp.
From: In situ evidence of the magnetospheric cusp of Jupiter from Juno spacecraft measurements
a The solid lines represent average electron energy distributions of the cusp Case 1 at 20:22 on 27 June − 02:12 on 28 June 2023 (green), magnetosphere on 27 June 2023 1501–1913 UT (blue), and magnetosheath (red) taken from the earlier study example on 2 October 2017 0900–1300 UT49. Noted that the dashed lines are inferred following the observational model67, as direct measurement of electrons with energies below 50 eV would involve large uncertainties. The comparison between the three populations at Jupiter is similar to the results at Saturn9. b Jupiter’s global magnetospheric topology and open-field configuration near dusk side based on the Zhang et al.2 simulation. We suggest that Juno is in the position indicated. The labels “1” and “2” in panel (b) indicate the spacecraft positions during Case 1 and Case 2, respectively, in this study. c The diagram of the footprint distribution corresponding to the open and closed magnetic field regions in magnetic coordinates in the southern hemisphere based on the picture proposed by Zhang et al.2. The labels “1” and “2” in panel (c) indicate the spacecraft footpoint positions during Case 1 and Case 2, respectively, in this study.
