João L. Yun
IA / FCUL

Abstract
Progress in our understanding of the star formation (SF) process has resulted in a relatively well-established description of how a cold dense cloud core evolves to form low-mass stars. Research efforts are concentrating in developing a corresponding theory for the formation of high-mass stars.
Outflows, jets, Herbig-Haro objects, circumstellar discs, inflow, and other SF related phenomena can be traced and studied using observations of SF sites distributed across the Galaxy. These observations must be conducted in the infrared, millimetre, and radio wavelengths in order to probe earlier and earlier stages of the SF process. I will present examples of these phenomena associated to both more isolated and more clustered star formation.
Moreover, the study of young stellar clusters located at different regions of the Galactic disc can provide information about the distribution of SF across the Galaxy and its properties at each location. In particular, I have been studying young stellar clusters in the outer Galaxy to look for possible differences from the better studied SF process ocurring in the inner Galaxy and in the solar neighborhood.

2019 February 13, 13:30

IA/U.Porto
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto