# Polarised kink waves in magnetic elements: evidence for chromospheric helical waves

## TL;DR

This study provides observational evidence of helical motions in chromospheric magnetic elements, supporting the presence of polarized kink waves that may contribute to solar atmospheric energy transfer.

## Contribution

It is the first to use high-resolution SST data and empirical mode decomposition to detect helical wave motions in small-scale chromospheric magnetic elements.

## Key findings

- Evidence of phase relations indicating helical motion in magnetic elements
- Detection of polarized kink waves in chromospheric magnetic features
- Implications for energy transfer in the solar atmosphere

## Abstract

In recent years, new high spatial resolution observations of the Sun's atmosphere have revealed the presence of a plethora of small-scale magnetic elements down to the resolution limit of current cohort of solar telescopes ($\sim 100-120$ km on the solar photosphere). These small magnetic field concentrations, due to the granular buffeting, can support and guide several magneto-hydrodynamics (MHD) wave modes that would eventually contribute to the energy budget of the upper layers of the atmosphere.\\ In this work, exploiting the high spatial and temporal resolution chromospheric data acquired with the Swedish 1-meter Solar Telescope (SST), and applying the empirical mode decomposition (EMD) technique to the tracking of the solar magnetic features, we analyse the perturbations of the horizontal velocity vector of a set of chromospheric magnetic elements. We find observational evidence that suggests a phase relation between the two components of the velocity vector itself, resulting in its helical motion.