  By comparing cumulative linear mass profiles of 12 Gould Belt molecular
clouds within 500 pc, we study how the linear mass distributions of molecular
clouds vary with the angles between the molecular cloud long axes and the
directions of the local magnetic fields (cloud-field direction offsets). We
find that molecular clouds with the long axes perpendicular to the magnetic
field directions show more even distributions of the linear mass. The result
supports that magnetic field orientations can affect the fragmentation of
molecular clouds (Li et al. 2017).
