Negative image at the wavelength of the Brγ-line. The maximum emission (darker areas in the false-colour image) is ≈ 2 mJy/arcsec² while the lowest emission (lighter areas) is ≈ 0.3 mJy/arcsec². The blue arrows point out the position of the circumstellar WR 102c-nebula. Source 15 (WR 102c) is indicated in the centre of the nebula as are the positions (small crosses) of our extracted spectra (cf. Fig. 4).