Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh11b1621s&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH11B-1621
Physics
Plasma Physics
[2114] Interplanetary Physics / Energetic Particles, [2194] Interplanetary Physics / Instruments And Techniques, [7807] Space Plasma Physics / Charged Particle Motion And Acceleration, [7845] Space Plasma Physics / Particle Acceleration
Scientific paper
One of the major goals of NASA’s Solar Probe Plus (SPP) mission is to determine the mechanisms that accelerate and transport high-energy particles from the solar atmosphere out into the heliosphere. During the height of solar activity, which occurs roughly once every 11 years, processes such as coronal mass ejections and solar flares release huge quantities of energized matter, magnetic fields and electromagnetic radiation into space. These high-energy particles, known as solar energetic particles or SEPs, present a serious radiation threat to human explorers living and working outside low-Earth orbit and to technological assets such as communications and scientific satellites in space. This talk describes the Integrated Science Investigation of the Sun (ISIS) - Energetic Particle Instrument suite. ISIS measures key properties such as intensities, energy spectra, composition, and angular distributions of the low-energy suprathermal source populations, as well as the more hazardous, higher energy particles ejected from the Sun. By making the first-ever direct measurements of the near-Sun regions where the acceleration takes place, ISIS will provide the critical measurements that, when integrated with other SPP instruments and with solar and interplanetary observations, will lead to a much deeper understanding of the Sun and major drivers of solar system space weather.
Christian Eric R.
Cummings Alan C.
Desai Mihir I.
Giacalone Joe
Hill Matthew E.
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