Overview of GMF 39 (CFG047.06+0.26). Left panel: background is CO-based extinction map. The black and blue contours represent the visual extinction of A_V = 3 and 7 mag, individually. The dashed ellipses are obtained through fitting the pixels inside the regions with A_V >  3 mag. The identified YSOs are labeled with red filled circles (Class I) and green pluses (Class II). Right panel: ¹³CO average spectrum for the region with A_V >  3 mag. The red vertical lines mark the GMF velocity range.