Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-09-19
2004hell.conf...81C
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
Hellenic Astronomical Society: Proceedings of the Sixth Astronomical Conference, held at Penteli, Athens, 15-17 September, 200
Scientific paper
In this report we present two complex eruptive solar events and the associated Cosmic Ray effects (Forbush decrease). We use combined recordings from a number of Earthbound Receivers, Space Experiments and data archives (such as the ARTEMIS-IV Radio spectrograph, the Athens NEUTRON MONITOR, the LASCO CME Lists, the SONG of the {CORONAS-F} satellite, etc.). The influence of solar transients on the interplanetary medium conditions and the cosmic ray flux is analysed and discussed. The observed time sequence of events of this time period indicates that the initiation of CMEs is closely related to the appearance of type II and IV radio bursts and strong solar flares. Their effects extend from the lower corona to the near Earth vicinity affecting Cosmic Ray measurements and space weather. As regards the Forbush decrease our data indicate significant amplification at the presence of a MHD shock.
Caroubalos Constantine
Gerontidou Maria
Hillaris Alexander
Kudela Karel
Kuznetsov Sergei N.
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