Oral Presentation

Magnetic Fields of Young Stellar Objects

Author(s): Woojin Kwon (KASI) et al.

Presenter: Woojin Kwon (Korea Astronomy and Space Science Institute)

Stars are formed in cold and dense molecular clouds by gravitational collapse. This big picture has well been drawn in the last few
decades. However, many details are little known. One of long-standing, fundamental questions in star formation is what the roles of magnetic fields are. Recent theoretical and observational studies have suggested that magnetic fields largely affect star formation in various scales: e.g., filamentary structure formation of molecular clouds in > 1000 au scales and early disk formation of young stellar objects in < 100 au scales. Also, magnetic fields may play a significant role in evolution of young stellar objects: e.g., accretion and outflow mechanisms of young stellar objects. Observations of long, millimeter and sub-millimeter wavelengths have mainly been utilized, but observational studies at short wavelengths may also be possible and important, particularly for the inner regions of young stellar objects, close to protostars.