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Particle Acceleration and Transport at the Sun Inferred from Fermi/LAT Observations of >100 MeV Gamma-rays
Nat Gopalswamy, Pertti Mäkelä, Seiji Yashiro
The sustained gamma-ray emission (SGRE) events from the Sun are associated with an ultrafast (2000 km/s or greater) halo coronal mass ejection (CME) and a type II radio burst in th…
Diffuse Interplanetary Radio Emission from a Polar Coronal Mass Ejection
N. Gopalswamy, P. Makela, S. Yashiro +1
We report on the first detection of nonthermal radio emission associated with a polar coronal mass ejection. We call the radio emission as diffuse interplanetary radio emission (DI…
A Weak Fermi Gamma-ray Event Associated with a Halo CME and a Type II Radio Burst
N. Gopalswamy, P. Mäkelä, S. Yashiro
We report on the 2015 June 25 sustained gamma-ray emission (SGRE) event associated with a halo coronal mass ejection and a type II radio burst in the decameter-hectometric (DH) wav…
The Common Origin of High-energy Protons in Solar Energetic Particle Events and Sustained Gamma-ray Emission from the Sun
N. Gopalswamy, S. Yashiro, P. Makela +2
We report that the number of > 500 MeV protons (Ng) inferred from sustained gamma ray emission (SGRE) from the Sun is significantly correlated with that of protons propagating into…