Gravitational stability spectra for the dominating structures in the two maps from Fig. 28. The isotropic and anisotropic wavelet coefficients mⁱ and m^a characterize the size dependence of the local column-density variation. Taking the size-scaled coefficients relative to the critical values of cm⁻² pc and 0.83 × 10²¹ cm⁻² pc allows us to measure the gravitational stability of the structures against spherical and cylindrical collapse modes. Values above unity indicate structures that are unstable against collapse. Lower values stand for structures that are not gravitationally bound.