Microwave emission from aligned dust

 Title: Microwave emission from aligned dust Author: Lazarian, A; Finkbeiner, Douglas Note: Order does not necessarily reflect citation order of authors. Citation: Lazarian, A, and D Finkbeiner. 2003. “Microwave Emission from Aligned Dust.” New Astronomy Reviews 47 (11-12) (December): 1107–1116. doi:10.1016/j.newar.2003.09.037. Full Text & Related Files: 0307012.pdf (194.8Kb; PDF) Abstract: Polarized microwave emission from dust is an important foreground that may contaminate polarized CMB studies unless carefully accounted for. We discuss potential difficulties associated with this foreground, namely, the existence of different grain populations with very different emission/polarization properties and variations of the polarization yield with grain temperature. In particular, we discuss observational evidence in favor of rotational emission from tiny PAH particles with dipole moments, i.e. spinning dust'', and also consider magneto-dipole emission from strongly magnetized grains. We argue that in terms of polarization, the magneto-dipole emission may dominate even if its contribution to total emissivity is subdominant. Addressing polarized emission at frequencies larger than approsimately 100 GHz, we discuss the complications arising from the existence of dust components with different temperatures and possibly different alignment properties. Published Version: 10.1016/j.newar.2003.09.037 Other Sources: https://arxiv.org/abs/astro-ph/0307012 Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:33461785 Downloads of this work: