Abstract
The September 1, 1971 flare in McMath region 11482 was projected to have occurred ∼30° behind the west limb. An anisotropic Ground Level Effect (GLE) began <30 min after the inferred explosive phase of the flare. We attribute the rapid injection of relativistic protons onto the earth spiral field line to a shock wave associated with an observed type II burst.
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Cliver, E.W. Prompt injection of relativistic protons from the September 1, 1971 solar flare. Sol Phys 75, 341–345 (1982). https://doi.org/10.1007/BF00153481
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DOI: https://doi.org/10.1007/BF00153481