Abstract
The mystery of star formation continues to deepen as research advancements lead to more open questions. For example, why can only a small fraction of galactic mass be converted to stars? Why do newly born stellar clusters share an almost universal mass spectrum? As we remain far from the entire picture, I will first review some puzzle pieces collected from the stellar nursery (molecular clouds) -- supersonic turbulence, ordered magnetic fields, and a power-law relationship between B-field strength and cloud density. Following that, recent efforts to put these pieces together using magnetohydrodynamic simulations will be presented, resolving a decades-old conundrum about the fragmentation of magnetized clouds. Motivated by the above observations and simulations, HKU and CUHK are building a magnetic-field camera to be installed on the Greenland Telescope. The talk will end with a brief introduction to ROGer (Remote Observing from Greenland).
Anyone interested is welcome to attend.