press release #0
Cosmic Ray Division Gets Unique Results During Recent Solar Activity Peak
Six installations of the Cosmic Ray Division monitoring solar activities and various parameters of Cosmic Ray flux registered unique results during the week of solar peak activity. All six installations registered decrease in Galactic Cosmic Ray (GCR) intensity in the aftermath of solar eruptions. The active Sun week began in the morning of July 13 and still continues. The giant flare on July 14 caused a solar radiation storm, strongest since 1991, and huge Coronal Mass Ejection (CME) triggered the beginning of the intense geomagnetic storm--strongest since 1989. The event alerted by NASA was closely monitored by our cluster of installations that register an unprecedented number of parameters for a single ground station. A cloud of charged particles arrived on Thursday, July 14, fifteen minutes after the eruption of the flare. Another cloud arrived Saturday night and further decrease of GCR intensity started from the low point going down by an additional 7%. GCR is the flux of cosmic radiation that is usually at stable levels but decreases after solar events, such as flares and Coronal Mass Ejections (CME) and later recovers to its normal pattern. This time bursts on the Sun were so close in time that the GCR level did not recover to its nominal steady state but continued to drop. Such a decrease might be the first in the history of measured solar activity. Registering it with all six of our installations is a big success. Truly unique, and exciting data were already presented during conference in Lodz, Poland. Analysis of the data is already in progress at the CRD and promises very interesting results. CRD installations continue to register interesting events in the aftermath of the recent peak solar activity. The Data is available online at http://crdlx5.yerphi.am/neutron at http://crdlx5.yerphi.am/solar.html. CRD presentation at COSPAR Conference is also available online: http://crdlx5.yerphi.am/news/conferences/cospar.pdf. For the complete information on our projects and other information please visit our home page http://crdlx5.yerphi.am.
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