Author(s): S. E. Clark, J. Colin Hill, J. E. G. Peek, M. E. Putman, and B. L. Babler
The morphology of diffuse neutral hydrogen structures can provide information about the orientation of polarized dust emission, a significant source of foreground contamination to the B-mode polarization of the cosmic microwave background.

[Phys. Rev. Lett. 115, 241302] Published Fri Dec 11, 2015