Observations and Analysis of High-Resolution Magnetic Field Structures in Molecular Clouds

TL;DR

This paper summarizes high-resolution dust polarization observations of magnetic fields in star-forming regions, revealing diverse morphologies and developing new analysis methods to understand magnetic influence on star formation.

Contribution

It provides detailed high-angular-resolution observations and introduces novel analysis techniques to quantify magnetic fields in molecular clouds.

Findings

Magnetic field morphologies vary from hourglass to isolated patches.

Magnetic fields influence the evolutionary stages of star-forming regions.

New methods enable better quantification of magnetic roles in star formation.

Abstract

Recent high-angular-resolution (up to 0.7") dust polarization observations toward star forming regions are summarized. With the Sub-Millimeter Array, the emission from the dense structures is traced and resolved. The detected magnetic field morphologies vary from hourglass-like structures to isolated patches depending on the evolutionary stage of the source. These observed features have also served as a testbed to develop new analysis methods, with a particular focus on quantifying the role of the magnetic field in the star formation process.