Analysis on the motion of flare kernels and HXR looptop sources

Details Analysis on the motion of flare kernels and HXR looptop sources Analysis on the motion of flare kernels and HXR looptop sources

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pnaoc...3..210z&link_type=abstract

Astronomical Research and Technology. Publications of National Astronomical Observatories of China (ISSN 1672-7673), Vol. 3, No.

Astronomy and Astrophysics

Astronomy

Sun, Flares, Magnetic Fields

Scientific paper

In this paper, the results of analyzing two M-class flares, regarding the relative motion of conjugate kernels and HXR looptop sources are briefly reported. It is found that each flare has two obvious conjugate kernels and a hard X-ray (HXR) source. Using the center-of-mass method to background-subtracted Hα images, the relative motion of the conjugate kernels is analyzed. Our results further demonstrate that, in addition to conventional separation motion of flare ribbons and corresponding upward motion of HXR coronal sources, there exists an opposite motion pattern. That is, during the impulsive phases of the two flares, the two conjugate kernels have a converging motion and the looptop sources have a descending motion. Our results propose a need for new kind magnetic reconnection model for solar flares.

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