Average Stokes V profile of Vega: 2018 (top), august 2023 (middle), and 2024 (bottom). Black line and grey zone: Averaged Stokes V and ±1 σ envelope. Blue line and 1 σ error bars: Averaged Null profile. Vertical dashed yellow lines show the position of the negative and positive peak of the 2018 averaged Stokes V profile. The dashed red lines show ±v sin i, while the dashed black lines correspond to the outer limits of the profile including gaussian broadening (additional ±10 km s⁻¹) as shown in Fig. 1.