Matches in SemOpenAlex for { <https://semopenalex.org/work/W4324046817> ?p ?o ?g. }
- W4324046817 endingPage "113" @default.
- W4324046817 startingPage "113" @default.
- W4324046817 abstract "We study a blowout jet that occurs at the west limb of the Sun on August 29$^{th}$, 2014 using high-resolution imaging/spectroscopic observations provided by SDO/AIA and IRIS. An inverse $gamma$-shape flux-rope appears before the jet{--} morphological indication of the onset of kink instability. The twisted field lines of kink-unstable flux-rope reconnect at its bright knot and launch the blowout jet at $approx$06:30:43 UT with an average speed of 234 km s$^{-1}$. Just after the launch, the northern leg of the flux rope erupts completely. The time-distance diagrams show multiple spikes or bright dots, which is the result of periodic fluctuations, i.e., quasi-periodic fluctuations (QPPs). The wavelet analysis confirms that QPPs have a dominant period of $approx$ 03 minutes. IRIS spectra (Si~{sc iv}, C~{sc ii}, and Mg~{sc ii}) may also indicate the occurrence of magnetic reconnection through existence of broad $&$ complex profiles and bi-directional flows in the jet. Further, we have found that line broadening is periodic with a period of $approx$ 03 minutes, and plasma upflow is always occurs when the line width is high, i.e., multiple reconnection may produce periodic line broadening. The EM curves also show the same period of $approx$ 03 minutes in different temperature bins. The images and EM show that this jets spire is mainly cool (chromospheric/transition region) rather than hot (coronal) material. Further, line broadening, intensity, and EM curves have a period of $approx$03 minutes, which strongly supports that multiple magnetic reconnection triggers QPPs in the blowout jet." @default.
- W4324046817 created "2023-03-14" @default.
- W4324046817 creator A5024564867 @default.
- W4324046817 creator A5048329564 @default.
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- W4324046817 creator A5056178004 @default.
- W4324046817 creator A5061766023 @default.
- W4324046817 creator A5068796735 @default.
- W4324046817 date "2023-03-01" @default.
- W4324046817 modified "2023-09-30" @default.
- W4324046817 title "Origin of Quasi-periodic Pulsation at the Base of a Kink-unstable Jet" @default.
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