# Flux emergence event underneath a filament

## TL;DR

This study investigates a flux emergence event beneath a solar filament, analyzing its size, magnetic flux, and associated filament eruption, which led to a CME reaching Earth, providing insights into solar magnetic activity.

## Contribution

It provides detailed measurements of flux emergence size, magnetic flux density, and the relationship with filament eruption and CME development.

## Key findings

- Flux emergence reached 24 Mm in half a day.
- Maximum magnetic flux density was around 1 kG.
- The filament eruption was associated with the flux emergence and CME.

## Abstract

Flux emergence phenomena are relevant at different temporal and spatial scales. We have studied a flux emergence region underneath a filament. This filament elevated itself smoothly, and the associated CME reached Earth. In this study we investigate the size and amount of flux in the emergence event. The flux emergence site appeared just beneath a filament. The emergence acquired a size of 24 Mm in half a day. The unsigned magnetic flux density from LOS-magnetograms is around 1 kG at its maximum. The transverse field as well as the filament eruption were also analysed.