Properties and Motions of Ellerman Bombs

Details Properties and Motions of Ellerman Bombs Properties and Motions of Ellerman Bombs

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998soph..182..381n&link_type=abstract

Solar Physics, v. 182, Issue 2, p. 381-392 (1998).

Physics

26

Scientific paper

We studied the properties and proper motions of Ellerman bombs (EBs) around a sunspot in a mature active region using high-resolution off-band Hα filtergrams together with nearly simultaneous magnetograms. Sixty-four percent of the EBs (classI) did not correspond accurately to enhanced magnetic field elements while the rest corresponded well to such elements (classII), which all were moving magnetic features (MMFs). We studied the lifetimes, shapes and dimensions, contrasts and time profiles of the EBs. These properties were essentially the same for both classes, in agreement with previous authors. ClassI EBs did not move but classII EBs tracked the MMFs well, with horizontal proper motions up to a maximum of 1.1kms-1 and their velocity pattern was similar to the velocity pattern of the MMFs.

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