Description
Chair: Alexis Popkow
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Gerald Share26/04/2017, 14:00
We detail the characteristics of 29 sustained-emission >100 MeV solar gamma-ray events observed by Fermi that are distinct from the associated impulsive flares. The >100 MeV gamma-ray emission is well fit by pion-decay spectra produced by >300 MeV protons following a power-law spectrum, or one that rolls over at high energy, and is inconsistent with bremsstrahlung from primary electrons. ...
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Dr Haihong Che (UMCP/GSFC)26/04/2017, 14:25
Electron beams accelerated by solar flares and nanoflares are believed to be responsible for several types of solar radio bursts observed in the corona and interplanetary medium, including flare-associated coronal Type U and J and interplanetary Type III radio bursts, and nanoflare-associated weak coronal type III bursts. The characteristic of these radio bursts is their frequency is...
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Dr Suruj Seunarine (University of Wisconsin-River Falls)26/04/2017, 14:50
The South Pole is an ideal location for the detecting solar energetic particles because of its low geomagnetic cutoff and high altitude. Neutron Monitors have operated at the South Pole for many decades, and they are able to distinguish between Solar and Galactic cosmic ray variations. They are excellent devices for observing space weather. Physicists at the University of Wisconsin-River...
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Mr David Alain Maurin (Centre National de la Recherche Scientifique (FR))26/04/2017, 15:15
The level of solar modulation phi at different times (related to the solar activity) is a central question of solar and galactic cosmic-ray physics. We detail a procedure to obtain a reference time series from neutron monitor data. We obtain an unbiased and accurate reconstruction at a precision of 10%. Reconstructed time series from the 50's are compared to the previous time-series of Usoskin...
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