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Mysteries of the 17 May 2012 Solar Event Responsible for GLE71. I. CME Development and the Role of Disturbances Excited by Eruptions
DOI: 10.1007/s11207-024-02373-0 Bibcode: 2024SoPh..299..129G

Firoz, K. A.; Grechnev, V. V.; Lysenko, A. L. +3 more

The SOL2012-05-17 event is remarkable in that it caused one of two ground-level enhancements (GLE71) in Solar Cycle 24. Despite the efforts spent studying this solar event, some aspects of it remain unclear. This relates to the development of a coronal mass ejection (CME), the history of the shock wave, and the flare. Our measurements reveal the f…

2024 Solar Physics
PROBA-2 SOHO 2
On the Instrumental Discrepancies in Lyman-Alpha Observations of Solar Flares
DOI: 10.1007/s11207-024-02407-7 Bibcode: 2024SoPh..299..162G

Dammasch, Ingolf E.; Milligan, Ryan O.; Greatorex, Harry J.

Despite the energetic significance of Lyman-alpha (Lyα; 1216 Å) emission from solar flares, regular observations of flare related Lyα have been relatively scarce until recently. Advances …

2024 Solar Physics
PROBA-2 0
Localization of the Gamma-Ray Emission Region in the 1 September 2014 Behind-the-Limb Solar Flare According to the Fermi/LAT Data
DOI: 10.1007/s11207-024-02264-4 Bibcode: 2024SoPh..299...18K

Grechnev, V. V.; Kochanov, A. A.; Kiselev, V. I. +1 more

Since the launch of the Fermi mission in 2008, it has become possible to study high-energy solar γ-rays with an unprecedented imaging capability. In particular, the position of the >100 MeVγ-ray source can shed light on the origin of high-energy protons that is still controversial. However, the imaging of solar γ-ray sources with the Fermi Larg…

2024 Solar Physics
PROBA-2 0