TIME DEPENDENCE OF THE COSMIC-RAY ELECTRON AND POSITRON SPECTRA MEASURED BY PAMELA EXPERIMENT DURING THE 23TH SOLAR MINIMUM

20 Oct 2015, 17:10
20m
Queen Kapiolani Hotel

Queen Kapiolani Hotel

150 Kapahulu Avenue, Honolulu, HI 96815

Speaker

Riccardo Munini (INFN - Universita Studi Trieste)

Description

The satellite-borne PAMELA experiment has been continuously collecting data since 15th June 2006, when it was launched from the Baikonur cosmodrome to detect the charged component of cosmic rays over a wide energy range and with unprecedented statistics. The apparatus design is particularly suited for particle and antiparticle identification. The PAMELA experiment has measured the time variation of electron and positron spectrum at Earth in great detail, extending the measurement down to 70 MeV. The spectra have been evaluated during the A<0 solar minimum of cycle 23 i.e. from July 2006 to December 2009, over six-months intervals. These spectra provide important information for the study of CR propagation inside the heliosphere and the investigation of the charge-sign dependent solar modulation.

Author

Riccardo Munini (INFN - Universita Studi Trieste)

Presentation materials