# A Complex Solar Coronal Jet with Two Phases

## TL;DR

This study observes a complex solar jet with two distinct phases originating from different magnetic patches, revealing detailed magnetic interactions and cancellations at high resolution that were previously indistinguishable.

## Contribution

The paper provides high-resolution observations of a solar jet with two phases from different magnetic patches, highlighting the role of magnetic cancellation in jet dynamics.

## Key findings

- Two phases originate from different magnetic patches.
- Magnetic flux patches decrease in size during the jet.
- Magnetic cancellation drives the two phases.

## Abstract

Jets often occur repeatedly from almost the same location. In this paper, a complex solar jet was observed with two phases to the west of NOAA AR 11513 on July 2nd, 2012. If it had been observed at only moderate resolution, the two phases and their points of origin would have been regarded as identical. However, at high resolution we find the two phases merge into one another and the accompanying footpoint brightenings occur at different locations. The phases originate from different magnetic patches rather than being one phase originating from the same patch. Photospheric line of sight (LOS) magnetograms show that the bases of the two phases lie in two different patches of magnetic flux which decrease in size during the occurrence of the two phases. Based on these observations, we suggest the driving mechanism of the two successive phases is magnetic cancellation of two separate magnetic fragments with an opposite polarity fragment between them.