GJ526 field, mapped with NIKA2 in the 1.15-mm continuum waveband (colour scale: mJy beam⁻¹, contours: S/N). Source IDs are those in Table 1. The curve traces the filament-like structure identified across the map. S/N contours are −3, +3, +4, +5, +6, .... (the negative contours are dashed white lines and can be seen better when the map is zoomed in the electronic version. The S/N = −4 level was processed in plotting the map but no such negative feature was apparent. For the noise rms per pixel, we refer the reader to Fig. 5. Pixel size is 2 arcsec. J2000 coordinates of the map centre are 13h45m44.52s and +14 ° 53′20.6″. The filled black circle in the bottom right corner shows the HPBW.