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

Zongjun Ning, Wenda Cao

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)283-293
Number of pages11
JournalSolar Physics
Issue number2
StatePublished - Apr 2011

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • EUV emission
  • Flares
  • X-ray bursts, hard


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