What are the Sources of Space Weather? An Extended Perspective
Mauro Messerotti: What are the Sources of Space Weather? An Extended Perspective
V ponedeljek, 1. aprila ob 13. uri, bo imel Mauro Messerotti (INAF-Asrtronomical Observatory of Trieste, Dept. of Physics, University of Trieste, National Institute for Nuclear Physics, Trieste Dept., Italy) Astrodebato o vesoljskem vremenu. Predavanje bo v predavalnici F3 v stavbi na Jadranski 19. Vljudno vabljeni!
Senior Advisor for Space Weather, INAF, Science Directorate, Rome, Italy
INAF-Asrtronomical Observatory of Trieste, Italy
Dept. of Physics, University of Trieste, Italy
National Institute for Nuclear Physics, Trieste Dept., Italy
Space Weather refers to the physical state of interplanetary and planetary environments, and its time evolution on a medium to short time scale. A perturbed state affects planetary environments by energetic photon outbursts and energetic particle streams that interact with magnetospheres and atmospheres (when existent), and trigger a series of significant impacts due to the additional energy injection. In the case of Earth, these perturbations affects both technological and biological systems, so that Space Weather has a relevant societal impact. The Sun as a star is characterised by quasi-periodical activity phenomena of magnetic origin, and for its proximity it acts as the main source of Space Weather perturbations. Nonetheless, high energy phenomena in our Galaxy and outer galaxies effectively concur to the global scenario. In this talk, an overview of Space Weather phenomenology and its impacts will be given, taking into account a physical perspective that extends to the whole Universe as initiated in the new trend of Space Weather science.