The coordinates (first line)and the column densities are those of the column density peaks measured on the column density map. The peak column densities have been corrected for a background emission (~ 0.2 × 10²³ cm^-2, measured in the central region near ). The coordinates (second line) are those of the ATLASGAL 870 μm emission peaks from Beuther et al. (2011).

Mean temperature measured using the dust temperature map by integration in the aperture corresponding to the central region.

Mass of the central region of the clumps obtained by integrating the column density in an aperture following the level at the N(H₂) peak’s half intensity.

Equivalent radius of the aperture following the level at the N(H₂) peak’s half intensity (beam deconvolved).

This clump is saturated at 250 μm; the coordinates and column densities have been measured on the column density map based on the 350 μm emission map; due to a smoothing by the beam (larger at 350 μm than at 250 μm), the peak column density is underestimated.

V(NH₃) from Wienen et al. (2012); pointed observations in the direction of the ATLASGAL 870 μm intensity peaks; FWHM 40″.

V(C¹⁸O) from Beuther et al. (2011); C¹⁸O spectra extracted from a velocity map towards the positions of the ATLASGAL 870 μm intensity peaks; FWHM 275.