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

Context: On 26-27 January 2020, the wide-field imager WISPR on Parker SolarProbe (PSP) observed a coronal mass ejection (CME) from a distance ofapproximately 30 solar radii as it passed through the instrument's 95 degreefield-of-view, providing an unprecedented view of the flux rope morphology ofthe CME's internal structure. The same CME was seen by STEREO, beginning on 25January.  Aims: Our goal was to understand the origin and determine the trajectory ofthis CME.  Methods: We analyzed data from three well-placed spacecraft: Parker SolarProbe (PSP), Solar Terrestrial Relations Observatory-Ahead (STEREO-A), andSolar Dynamics Observatory (SDO). The CME trajectory was determined using themethod described in Liewer et al. (2020) and verified using simultaneous imagesof the CME propagation from STEREO-A. The fortuitous alignment with STEREO-Aalso provided views of coronal activity leading up to the eruption.Observations from SDO, in conjunction with potential magnetic field models ofthe corona, were used to analyze the coronal magnetic evolution for the threedays leading up to the flux rope ejection from the corona on 25 January.  Results: We found that the 25 January CME is likely the end result of a slowmagnetic flux rope eruption that began on 23 January and was observed bySTEREO-A/Extreme Ultraviolet Imager (EUVI). Analysis of these observationssuggest that the flux rope was apparently constrained in the corona for morethan a day before its final ejection on 25 January. STEREO-A/COR2 observationsof swelling and brightening of the overlying streamer for several hours priorto eruption on January 25 led us to classify this as a streamer-blowout CME.The analysis of the SDO data suggests that restructuring of the coronalmagnetic fields caused by an emerging active region led to the final ejectionof the flux rope.

Evolution of a Streamer-Blowout CME as Observed by Imagers on Parker Solar Probe and the Solar Terrestrial Relations Observatory