Dynamical structure of extreme ultraviolet macrospicules

Details Dynamical structure of extreme ultraviolet macrospicules Dynamical structure of extreme ultraviolet macrospicules

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...431l..59k&link_type=abstract

The Astrophysical Journal, Part 2 - Letters, vol. 431, no. 1, p. L59-L62

Astronomy and Astrophysics

Astronomy

21

Coronal Holes, Image Enhancement, Image Resolution, Solar Corona, Solar Limb, Spatial Resolution, Spicules, Sun, Temporal Resolution, Ultraviolet Astronomy, Extreme Ultraviolet Radiation, Skylab Program, Solar Magnetic Field, Solar Spectra, Solar Wind, Spectroheliographs

Scientific paper

We describe the substructures forming the macrospicules and their temporal evolution, as revealed by the application of an image enhancement algorithm to extreme ultraviolet (EUV) observations of macrospicules. The enhanced images uncover, for the first time, the substructures forming the column-like structures within the macrospicules and the low-lying arches at their base. The spatial and temporal evolution of macrospicules clearly show continuous interaction between these substructures with occasional ejection of plasma following a ballistic trajectory. We comment on the importance of these results for planning near future space observations of macrospicules with better temporal and spatial resolution.

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