Abstract
The energy spectra of galactic cosmic rays carry fundamental information regarding their origin and propagation, but, near Earth, cosmic rays are significantly affected by the solar magnetic field which changes over time. The time dependence of proton and electron spectra were measured from July 2006 to December 2009 by PAMELA experiment, that is a ballooon-borne experiment collecting data since 15 June 2006. These studies allowed to obtain a more complete description of the cosmic radiation, providing fundamental information about the transport and modulation of cosmic rays inside the heliosphere. The study of the time dependence of the cosmic-ray protons and helium nuclei from the unusual 23rd solar minimum through the following period of solar maximum activity is presented.
Highlights
International Conference on Topics in Astroparticle and Underground PhysicsUniversity of Naples ‘Federico II’, Department of Physics, I-80126 Naples, Italy INFN, Sezione di Napoli, I-80126 Naples, Italy
During propagation through the interstellar medium to the Earth cosmic rays undergo interactions with gas atoms and suffered the solar wind interactions
The energy spectra of galactic cosmic rays carry fundamental information regarding their origin and propagation, but, near Earth, cosmic rays are significantly affected by the solar magnetic field which changes over time
Summary
University of Naples ‘Federico II’, Department of Physics, I-80126 Naples, Italy INFN, Sezione di Napoli, I-80126 Naples, Italy. University of Florence, Department of Physics and Astronomy, I-50019 Sesto Fiorentino,Florence, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Florence, Italy. University of Bari, Department of Physics, I-70126 Bari, Italy INFN, Sezione di Bari, I-70126 Bari, Italy
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
