Mason, B. S.Robishaw, T.Heiles, CFinkbeiner, DouglasDickinson, C.2017-07-182009Mason, B. S., T. Robishaw, C Heiles, D. Finkbeiner, and C. Dickinson. 2009. “A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622.” The Astrophysical Journal 697 (2) (May 11): 1187–1193. doi:10.1088/0004-637x/697/2/1187.0004-637Xhttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33462022The dark cloud Lynds 1622 is one of a few specific sites in the Galaxy where, relative to observed free-free and vibrational dust emission, there is a clear excess of microwave emission. In order to constrain models for this microwave emission, and to better establish the contribution which it might make to ongoing and near-future microwave background polarization experiments, we have used the Green Bank Telescope to search for linear polarization at 9.65 Ghz toward Lynds 1622. We place a 95.4% upper limit of 88 μK (123 μK at 99.7% confidence) on the total linear polarization of this source averaged over a 1farcm3 FWHM beam. Relative to the observed level of anomalous emission in Stokes I these limits correspond to fractional linear polarizations of 2.7% and 3.5%.en-USdust, extinctionISM: individual (Lynds 1622)polarizationradio continuum: ISMJournal Article2017-05-1620092017-07-1810.1088/0004-637X/697/2/1187