A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Irregular Proton Injection to High Energies at Interplanetary Shocks
Tekijät: Trotta Domenico, Horbury Timothy S., Lario David, Vainio Rami, Dresing Nina, Dimmock Andrew, Giacalone Joe, Hietala Heli, Wimmer-Schweingruber Robert F., Berger Lars, Yang Liu
Kustantaja: Institute of Physics Publishing
Julkaisuvuosi: 2023
Journal: Astrophysical Journal Letters
Lehden akronyymi: ApJL
Artikkelin numero: L13
Vuosikerta: 957
Numero: 2
eISSN: 2041-8213
DOI: https://doi.org/10.3847/2041-8213/ad03f6
Verkko-osoite: https://iopscience.iop.org/article/10.3847/2041-8213/ad03f6
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/181761194
How thermal particles are accelerated to suprathermal energies is an unsolved issue, crucial for many astrophysical systems. We report novel observations of irregular, dispersive enhancements of the suprathermal particle population upstream of a high-Mach-number interplanetary shock. We interpret the observed behavior as irregular “injections” of suprathermal particles resulting from shock front irregularities. Our findings, directly compared to self-consistent simulation results, provide important insights for the study of remote astrophysical systems where shock structuring is often neglected.
Ladattava julkaisu This is an electronic reprint of the original article. |