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New upper limits on the power of general relativity from solar system dynamics
Deng, XM; Xie, Y
Source PublicationNEW ASTRONOMY
AbstractIt is well known that solar flares and shocks driven by coronal mass ejections (CMEs) are high-energy particle acceleration processes that might cause a high-energy particle event known as a ground-level enhancement (GLE). In this context, we have attempted to understand the processes responsible for the first GLE event (GLE71 17 May 2012 01:50 UT) of Solar Cycle 24. We studied the spatial and spectral data from the Solar Dynamics Observatory (SDO) the Culgoora radio-heliograph, and Wind/WAVES instrument, and analyzed the temporal data of the solar-flare components, the solar radio-flux density, and the electron fluxes from the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), the Geostationary Operational Environmental Satellite (GOES), the Radio Solar Telescope Network (RSTN), and Wind spacecraft. The flare had two ribbons separated by the neutral line between negative and positive magnetic polarity. Their structure was also almost consistent with the contours of some flare components, which were almost saturated during the flare-peak time. As indicated by the metric-kilometric Type-II burst, and because it extended over a wide heliolongitude (> a parts per thousand aEuro parts per thousand 41(a similar to)) range, the CME-driven shock was fast enough to cause high-energy particle acceleration at a high altitude in the solar corona. Moreover, the CME and flare-flash phases were aligned along the same direction, which implies that if the CME-driven shock played the leading role in causing the GLE, preceding flare components may have contributed to the shock.
Subject Area天文和天体物理
Indexed BySCI
WOS IDWOS:000344427700006
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
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GB/T 7714
Deng, XM,Xie, Y. New upper limits on the power of general relativity from solar system dynamics[J]. NEW ASTRONOMY,2015,35:36-39.
APA Deng, XM,&Xie, Y.(2015).New upper limits on the power of general relativity from solar system dynamics.NEW ASTRONOMY,35,36-39.
MLA Deng, XM,et al."New upper limits on the power of general relativity from solar system dynamics".NEW ASTRONOMY 35(2015):36-39.
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