1–3 Jun 2026
KIS, Freiburg
Europe/Berlin timezone

Height-dependent magnetic topology of quiet-Sun network element revealed by Sunrise III/SCIP

3 Jun 2026, 14:00
15m
Science Meeting Day 2: Session 3

Speaker

ryan campbell (Queen's University Belfast)

Description

We present an analysis of high-resolution multi-line spectropolarimetric observations of quiet-Sun network elements obtained with the Sunrise III Chromospheric Infrared SpectroPolarimeter (SCIP). Using simultaneous photospheric Fe I and chromospheric Ca II diagnostics, we examine the magnetic structure of a network element across optical depth. We find a coherent transverse magnetic structure with pronounced lateral variation in azimuth across the feature. At the network boundary, we identify localised pixels exhibiting complex Stokes $V$ profiles and opposite-polarity line-of-sight magnetic fields, in some cases changing sign between photospheric depths. In addition, we report a distinct example showing opposite-sign Stokes $V$ profiles between photospheric and chromospheric lines, indicative of a height-dependent reversal of the line-of-sight magnetic field. These observations highlight the complexity of quiet-Sun network boundaries and provide constraints on the three-dimensional magnetic structure of small-scale solar magnetic fields.

Authors

Dr Carlos Quintero Noda (IAC) Dr Manolo Collados (IAC) Prof. Mihalis Mathioudakis (QUB) ryan campbell (Queen's University Belfast)

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