K-band observation of the S cluster using ERIS in 2024. On the right-hand side of the limited FOV, the bow-shock source X7 is located. The shown plot is created by selecting the IFU channels of the related Doppler-shifted Brγ signal. Therefore, this image represents the product of the line and continuum emission of X7. From this visual inspection, we select the source and extract the spectrum that is presented in this section.