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Solar Physics

, Volume 269, Issue 2, pp 283–293 | Cite as

Hard X-ray Source Distributions on EUV Bright Kernels in a Solar Flare

  • Zongjun NingEmail author
  • Wenda Cao
Article

Abstract

We explore the hard X-ray source distributions of an C1.1 flare occurred on 14 December 2007. Both Hinode/EIS and RHESSI observations are used. One of EIS rasters perfectly covers the double hard X-ray footpoints, where the EUV emission appears strong from the cool line of He ii (log T=4.7) to the hot line of Fe xvi (log T=6.4). We analyze RHESSI X-ray images at different energies and different times before the hard X-ray maximum. The results show a similar topology for the time-dependent source distribution (i.e. at 14:14:35 UT) as that for energy-dependent source distribution (i.e. at a given energy band of 6 – 9 keV) overlapped on EUV bright kernels, which seems to be consistent with the evaporation model.

Keywords

EUV emission Flares X-ray bursts, hard 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Key Laboratory of SpacePurple Mountain ObservatoryNanjingChina
  2. 2.Key Laboratory of Solar ActivityNational Astronomical ObservatoriesBeijingChina
  3. 3.Center for Solar Terrestrial ResearchNew Jersey Institute of TechnologyNewarkUSA

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