The Planck Low Frequency Instrument will recover polarization by differencing the outputs from radiometers sensitive to orthogonal polarizations. We contrast the systematic errors that afflict such a system with those that affect correlation polarimeters; the Planck design has some important advantages when measuring very weak signals such as the CMB. We also review systematic effects arising from the choice of scan strategy for all-sky mapping missions like Planck.[For the Planck-LFI consortium].
@article{arxiv.astro-ph/0111067,
title = {Systematics of Microwave Polarimetry with the Planck LFI},
author = {J. P. Leahy and V. Yurchenko and Morag Hastie and M. Bersanelli and N. Mandolesi},
journal= {arXiv preprint arXiv:astro-ph/0111067},
year = {2014}
}
Comments
8 pages, 4 figures, to appear in S. Cecchini et al., Astrophysical Polarized Backgrounds, AIP Conf. Proceedings. Slightly expanded at the request of the editors