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Multispacecraft Observations of a Widespread Solar Energetic Particle Event on 2022 February 15–16
DOI: 10.3847/1538-4357/ad167f Bibcode: 2024ApJ...963..107K

Holmström, M.; Lario, D.; Palmerio, E. +37 more

On 2022 February 15–16, multiple spacecraft measured one of the most intense solar energetic particle (SEP) events observed so far in Solar Cycle 25. This study provides an overview of interesting observations made by multiple spacecraft during this event. Parker Solar Probe (PSP) and BepiColombo were close to each other at 0.34–0.37 au (a radial …

2024 The Astrophysical Journal
MEx SolarOrbiter BepiColombo SOHO 20
Enhanced Oxygen Ion Outflow at Earth and Mars due to the Concurrent Impact of a Stream Interaction Region
DOI: 10.3847/1538-4357/ad307a Bibcode: 2024ApJ...966..126V

Thampi, Smitha V.; Bhaskar, Ankush; Venkataraman, V. +1 more

One of the major processes that solar wind drives is the outflow and escape of ions from the planetary atmospheres. The major ion species in the upper ionospheres of both Earth and Mars is O+, and hence it is more likely to dominate the escape process. On Earth, due to a strong intrinsic magnetic field, the major ion outflow pathways ar…

2024 The Astrophysical Journal
MEx 0