Fig. 17
From: Low-energy particle experiments–ion mass analyzer (LEPi) onboard the ERG (Arase) satellite
a Energy (E/q)-TOF diagram observed at 1516–1950UT on May 28, 2017. The data are summed within the period. White dashed lines indicate the average TOF values obtained in laboratory experiments for \(\hbox {H}^{+}\), \(\hbox {H}_{2}^{+}\)/\(\hbox {He}^{++}\), \(\hbox {He}^{+}\), \(\hbox {N}^{++}\), \(\hbox {N}^{+}\), and \(\hbox {N}_{2}^{+}\). b TOF spectrum with the energy of 19.2 keV/q