PUBLICATIONS OF THE ASTRONOMICAL OBSERVATORY OF BELGRADE 107, Page 75-80, https://doi.org/10.69646/14sbac11p
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

This paper presents an analysis of the structural characteristics of the giant molecular clouds Perseus and Orion A using the gravity-based method G-virial applied to ¹³CO(1-0) data cubes. The method utilizes a physical quantity called gravitational boundedness and through it defines gravitationally coherent regions. To define the gravitationally coherent regions we used the Dendrogram method. The results from our analysis reveal four things: the studied gravitationally coherent regions follow Larson-type relations, the gravitational boundedness rises towards the centers of these structures, cluster-forming regions generally have higher values of gravitational boundedness, and Orion A is characterized with higher values of gravitational boundedness than Perseus.