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Gamma-Ray Polarimetry of Two X-Class Solar Flares | | Steven E. Boggs
; W. Coburn
; E. Kalemci
; | | Date: |
19 Oct 2005 | | Abstract: | We have performed the first polarimetry of solar flare emission at gamma-ray energies (0.2-1 MeV). These observations were performed with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) for two large flares: the GOES X4.8-class solar flare of 2002 July 23, and the X17-class flare of 2003 October 28. We have marginal polarization detections in both flares, at levels of 21% +/- 9% and -11% +/- 5% respectively. These measurements significantly constrain the levels and directions of solar flare gamma-ray polarization, and begin to probe the underlying electron distributions. | | Source: | arXiv, astro-ph/0510588 | | Services: | Forum | Review | PDF | Favorites | |
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