Browsing Faculty of Natural and Agricultural Sciences by Subject "sun: flares"
Now showing items 1-2 of 2
-
The cosmic-ray ground-level enhancement of 1989 September 29
(IOP Publishing, 2014)The ground-level enhancement (GLE) of 1989 September 29 is one of the largest of 71 solar energetic particle events observed by neutron monitors on Earth. It was smaller than the record-breaking GLE 5 of 1956 February 23, ... -
The high-energy impulsive ground-level enhancement
(IOP Publishing, 2012)We have studied short-lived (21 minute average duration), highly anisotropic pulses of cosmic rays that constitute the first phase of 10 large ground-level enhancements (GLEs), and which extend to rigidities in the range ...