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Paper: On the Relationship Between Polar Coronal Jets and Plumes
Volume: 415, The Second Hinode Science Meeting: Beyond Discovery-Toward Understanding
Page: 144
Authors: Raouafi, N.-E.
Abstract: We utilize observations from Hinode/XRT and the Extreme ultraviolet (EUV) imagers onboard STEREO to study the relationship between coronal jets and plumes. The data were recorded on Apr. 7–8 and Nov. 2–4, 2007. Detailed results are presented for the Apr. campaign along with preliminary analysis of the Nov. observations. We find that > 90% of the identified jets are directly related to plumes (Apr. data). EUV data show that plume haze rose from the same spatial location of more than 70% of the identified jets. The remaining jets occurred in areas where plume material exists already. The jet-plume transition is smooth in some cases and delayed by up to several minutes in others. Short-lived, jet-like events and small transient bright points occur at different locations within the base of pre-existing long-lived plumes. The latter are enhanced after the manifestation of jet-like events. The present observations suggest evidence for X-ray jets as precursors of polar plumes and of their brightness changes.
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