Wei-An Chen (National Cheng Kung University); Ya-Wen Tang (ASIAA); Jia-Wei Wang (ASIAA)
It is believed that magnetic (B) fields can guide materials in interstellar clouds to form filamentary structures. Under proper physical conditions, irregular shaped grains can be aligned with B fields and thus produce polarized lights. With the polarization data (polarization projected on the sky) from JCMT and ALMA, we can obtain the orientation of the magnetic field in different scales. I will present the morphologies we identified in different regions of the clouds (e.g. Serpens Main) using dendrogram analysis. In order to study the relation between the morphologies and the B fields, we are developing a methodology to quantify this relation. The pros and cons of various methodologies will be discussed.