PROJECTS
   

Project
Acronym:  
Name: Eruptive Solar Phenomena 
Project status: From: 2004-05-17 To: 2006-09-30 (Completed)
Type (Programme): BILAT 
Project funding: -
International partner
Organisation Name: Astrophysikalisches Institut Potsdam 
Organisation adress: An der Sternwarte 16, 14482 Potsdam 
Organisation country: Njemačka 
Contact person name: Prof. Gottfried Mann 
Contact person email: Email 
Croatian partner
Organisation name: Geodetski fakultet 
Organisation address: Kačićeva 26, 10000 Zagreb 
Contact person name: Bojan Vršnak
Contact person tel:
+385 1 4639 279  Contact person fax: + 385 1 4828 081 
Contact person e-mail: Email 
Short description of project
 The main subject of the project are explosive phenomena in the solar atmosphere and related physical processes that influence the Earth and its space environment. Energy stored in magnetic coronal structures is explosively released in solar flares and eruptions. Flares accelerate relativistic particle beams and the plasma is heated up to several tens million K. Eruptions can eject into interplanetary space tens billions of tons of coronal plasma at velocities in excess of 1000 km/s. Both phenomena perturb the interplanetary (IP) space and affect the Earth. UV radiation and X-rays disturb the ionosphere, shock waves and particle beams the magnetosphere, whereas interactions of the magnetic fields of ejecta and the Earth's field cause geomagnetic storms. Far-reaching consequences of these processes led to the development of a new field of research called Space Weather. 
Short description of the task performed by Croatian partner
 The main task is to advance the comprehension of processes which cause and govern the development of solar flares and eruptions, and to investigate the relationship between these two phenomena. Furhermore, it will be investigated under what conditions various associated disturbances (particle beams, shock waves, interplanetary magnetic clouds, etc.) can leave the solar corona, propagate through the intreplanetary space and affect the Earth. 


   

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