SMALL-SCALE STRUCTURING OF ELLERMAN BOMBS AT THE SOLAR LIMB

Ellerman bombs (EBs) have been widely studied in recent years due to their dynamic, explosive nature and apparent links to the underlying photospheric magnetic field implying that they may be formed by magnetic reconnection in the photosphere. In this article, we make use of high-resolution, high-ca...

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Bibliographic Details
Published in:The Astrophysical journal 2015-01, Vol.798 (1), p.1-9
Main Authors: Nelson, C J, Scullion, E M, Doyle, J G, Freij, N, Erdelyi, R
Format: Article
Language:English
Subjects:
Assembly
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
CHROMOSPHERE
Crisps
Dynamic tests
Explosions
FILTERS
Imaging
MAGNETIC FIELDS
MAGNETIC RECONNECTION
MORPHOLOGY
PHOTOSPHERE
Physical properties
POTENTIALS
SOLAR FLARES
Solar limb
Solar observatories
SUN
VELOCITY
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Summary:Ellerman bombs (EBs) have been widely studied in recent years due to their dynamic, explosive nature and apparent links to the underlying photospheric magnetic field implying that they may be formed by magnetic reconnection in the photosphere. In this article, we make use of high-resolution, high-cadence observations of an Active Region at the solar limb, collected by the CRisp Imaging SpectroPolarimeter (CRISP) instrument, to identify EBs and infer their physical properties. The upper atmosphere is also probed using the Solar Dynamic Observatory's Atmospheric Imaging Assembly (SDO/AIA). We analyze 22 EB events evident within these data, finding that 20 appear to follow a parabolic path away from the solar surface at an average speed of 9 km s[sup -1], extending away from their source by 580 km, before retreating back at a similar speed. However, as previous research found, the extensions do not appear to impact upon the H alpha line core, and are not observed by the SDO/AIA EUV filters.
ISSN:1538-4357
0004-637X
1538-4357
DOI:10.1088/0004-637X/798/1/19