The High-energy Particle Detector (HEPD) on board the China Seismo-Electromagnetic Satellite (CSES-01) - launched on 2018 February 2 - is a light and compact payload suitable for measuring electrons (3-100 MeV), protons (30-250 MeV), and light nuclei (up to a few hundreds of MeV). The Sun-synchronous orbit and large acceptance allow HEPD to measure cosmic-ray particles near the ±65° latitude limit for a fair amount of time per day. In this work, three semiannual galactic hydrogen energy spectra between ∼40 and 250 MeV are presented, including a comparison with theoretical spectra from HelMod, a 2D Monte Carlo model developed to simulate the solar modulation of cosmic rays throughout the heliosphere. To our knowledge, these are the first hydrogen energy spectra below 250 MeV measured at 1 au between 2018 and 2020.
Galactic Cosmic-Ray Hydrogen Spectra in the 40-250 MeV Range Measured by the High-energy Particle Detector (HEPD) on board the CSES-01 Satellite between 2018 and 2020 / Bartocci, S.; Battiston, R.; Burger, W. J.; Campana, D.; Carfora, L.; Castellini, G.; Conti, L.; Contin, A.; De Donato, C.; De Persio, F.; De Santis, C.; Diego, P.; Follega, F. M.; Iuppa, R.; Lazzizzera, I.; Marcelli, N.; Martucci, M.; Masciantonio, G.; Merge, M.; Osteria, G.; Palma, F.; Palmonari, F.; Parmentier, A.; Perfetto, F.; Picozza, P.; Piersanti, M.; Pozzato, M.; Rashevskaya, I.; Ricci, E.; Ricci, M.; Ricciarini, S.; Scotti, V.; Sotgiu, A.; Sparvoli, R.; Ubertini, P.; Vitale, V.; Zoffoli, S.; Zuccon, P.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - 901:1(2020), p. 8. [10.3847/1538-4357/abad3e]
Galactic Cosmic-Ray Hydrogen Spectra in the 40-250 MeV Range Measured by the High-energy Particle Detector (HEPD) on board the CSES-01 Satellite between 2018 and 2020
Perfetto F.;Scotti V.;
2020
Abstract
The High-energy Particle Detector (HEPD) on board the China Seismo-Electromagnetic Satellite (CSES-01) - launched on 2018 February 2 - is a light and compact payload suitable for measuring electrons (3-100 MeV), protons (30-250 MeV), and light nuclei (up to a few hundreds of MeV). The Sun-synchronous orbit and large acceptance allow HEPD to measure cosmic-ray particles near the ±65° latitude limit for a fair amount of time per day. In this work, three semiannual galactic hydrogen energy spectra between ∼40 and 250 MeV are presented, including a comparison with theoretical spectra from HelMod, a 2D Monte Carlo model developed to simulate the solar modulation of cosmic rays throughout the heliosphere. To our knowledge, these are the first hydrogen energy spectra below 250 MeV measured at 1 au between 2018 and 2020.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
