PUBLICATIONS OF THE ASTRONOMICAL OBSERVATORY OF BELGRADE 107, Page 69-74, https://doi.org/10.69646/14sbac10p
PPROCEEDINGS OF THE XIV SERBIAN-BULGARIAN ASTRONOMICAL CONFERENCE, Vrnjačka Banja, Serbia, September 23-27, 2024, Eds. Milan S. Dimitrijević, Evgeni Semkov, Zoran Simić, Goran Damljanović, Momchil Dechev
Published by: Astronomical Observatory, Volgina 7, 11060 Belgrade 38, Serbia

Probability distribution functions of mass- (ρ-PDF) and column density (N - PDF) in star-forming regions often display one or multiple power-law tails (PLT) in the high-density range. The correct PLT extraction is of key significance for understanding morphological and dynamical structure of star-forming regions since the PDF properties can be directly linked to the role of different factors in the star formation process: gravity, turbulence, magnetic fields, etc. Many observations indicate that the PLT regime in the N - PDF corresponds to highly fragmented, filamentary regions in a star-forming cloud - thus, it is interesting to compare N-PDFs of small-scale structures extracted in those areas with the N - PDF of the whole cloud. We present analyses of the N-PDFs in Galactic regions of various star-forming activity obtained from Herschel data, by use of a novel method (Li 2022) for decomposion of a map into multiple components containing structures of different sizes.