English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report a solar jet phenomenon associated with the C5.4 class flare on 2014November 11. The data of jet was provided by Solar Dynamics Observatory (SDO),X-Ray Telescope (XRT) aboard Hinode, Interface Region Imaging Spectrograph(IRIS) and Domeless Solar Telescope (DST) at Hida Observatory, KyotoUniversity. These plentiful data enabled us to present this series of papers todiscuss the entire processes of the observed phenomena including the energystorage, event trigger, and energy release. In this paper, we focus on theenergy release process of the observed jet, and mainly describe our spectralanalysis on the H-alpha data of DST to investigate the internal structure ofthe H-alpha jet and its temporal evolution. This analysis reveals that in thephysical quantity distributions of the H-alpha jet, such as line-of-sightvelocity and optical thickness, there is a significant gradient in thedirection crossing the jet. We interpret this internal structure as theconsequence of the migration of energy release site, based on the idea ofubiquitous reconnection. Moreover, by measuring the horizontal flow of the finestructures in jet, we succeeded in deriving the three-dimensional velocityfield and the line-of-sight acceleration field of the H-alpha jet. The analysisresult indicates a part of ejecta in the H-alpha jet experienced the additionalacceleration after it had been ejected from the lower atmosphere. Thissecondary acceleration was specified to occur in the vicinity of theintersection between the trajectories of the H-alpha jet and X-ray jet observedby Hinode/XRT. We propose that a fundamental cause of this phenomenon is themagnetic reconnection involving the plasmoid in the observed jet.

Observational Study on the Fine Structure and Dynamics of a Solar Jet. II. Energy Release Process Revealed by Spectral Analysis