Speaker
Description
Massive star-forming regions host a wide range of physical processes that shape the early stages of stellar and planetary system formation. Studying these environments provides key insights into how stars form and evolve under conditions similar to those in which the Sun is thought to be born. In particular, protostellar disks represent a crucial stage in which physical conditions regulate the chemical composition of material that may eventually be incorporated into planetary systems. In this study, we present high-angularresolution (0.16'') ALMA observations of the massive star-forming region G351.77-0.54. This region hosts one of the few massive disks detected in the metallic salt NaCl, and it is the only one in which we have identified CaS so far. Moreover, several massive protostellar disks are found within this cluster, characterized by different luminosities and temperatures. This diversity allows a comprehensive study of complex organic chemistry and its potential dependence on physical parameters across a broad dynamic range. Since all these massive disks arise from the same parent molecular cloud, this region provides an ideal laboratory to study the evolution of chemical complexity during massive star formation. In particular, we compare a broad inventory of COMs across five protostellar disks to explore possible correlations between these organic species with protostellar parameters. Altogether, this study highlights the influence of extreme environments on the fate of molecules and the build-up of chemical complexity.
