Transition region response to Quiet Sun Ellerman Bombs
Aditi Bhatnagar, Luc Rouppe van der Voort, and Jayant Joshi

TL;DR
This study investigates how Quiet Sun Ellerman Bombs influence the upper solar atmosphere by analyzing their spatial and temporal relationship with UV brightenings, revealing that only a small fraction contribute to localized transition region heating.
Contribution
The paper provides the first detailed analysis of the temporal and spatial relationship between QSEBs and transition region UV brightenings using high-resolution observations.
Findings
57% of QSEBs start before UV brightenings
36% of UV brightenings occur before QSEBs
Only 15% of QSEBs contribute to transition region heating
Abstract
Quiet Sun Ellerman Bombs (QSEBs) are key indicators of small-scale photospheric magnetic reconnection events. Recent high-resolution observations have shown that they are ubiquitous and that large numbers of QSEBs can be found in the quiet Sun. We aim to understand the impact of QSEBs on the upper solar atmosphere by analysing their spatial and temporal relationship with the UV brightenings observed in transition region diagnostics. We analyse high-resolution H-beta observations from the Swedish 1-m Solar Telescope and utilise k-means clustering to detect 1423 QSEBs in a 51 min time series. We use coordinated and co-aligned observations from the Interface Region Imaging Spectrograph (IRIS) to search for corresponding signatures in the 1400 A slit-jaw image (SJI) channel and in the Si IV 1394 A and Mg II 2798.8 A triplet spectral lines. We identify UV brightenings from SJI 1400 using a…
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Taxonomy
TopicsNuclear Issues and Defense
