An Intriguing Solar Microflare Observed with RHESSI, Hinode and TRACE

Abstract

Investigate particle acceleration and heating in a solar microflare. In a microflare with non-thermal emission to remarkably high energies ($>50$ keV), we investigate the hard X-rays with RHESSI imaging and spectroscopy and the resulting thermal emission seen in soft X-rays with Hinode/XRT and in EUV with TRACE. The non-thermal footpoints observed with RHESSI spatially and temporally match bright footpoint emission in soft X-rays and EUV. There is the possibility that the non-thermal spectrum extends down to 4 keV. The hard X-ray burst clearly does not follow the expected Neupert effect, with the time integrated hard X-rays not matching the soft X-ray time profile. So although this is a simple microflare with good X-ray observation coverage it does not fit the standard flare model.

4 pages, 5 figures, accepted by A&A

References in corpus (1)

• Observational Evidence for Gentle Chromospheric Evaporation During the Impulsive Phase of a Solar Flare

Cited by in corpus (18)

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