Speaker
Description
It was the 15th of June of 2006 when the PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome in Kazakstan. Then, for nearly ten years, PAMELA had been making high-precision measurements of the charged component of the cosmic radiation opening a new era of precision studies in cosmic rays and challenging our basic vision of the mechanisms of production, acceleration and propagation of cosmic rays in the galaxy and in the heliosphere. The study of the time dependence of the various components of the cosmic radiation from the unusual 23rd solar minimum through the maximum of solar cycle 24 clearly shows solar modulation effects as well as charge sign dependence. These results are fundamental in order to fully understand the propagation mechanisms of the cosmic radiation inside the Heliosphere. In this talk, PAMELA main results about the long term variation of cosmic-ray and of transient phenomena such Forbush decreases will be presented.
