Galactic Microwave Emission from Spinning Dust: The Green Bank Galactic Plane Survey

Details Galactic Microwave Emission from Spinning Dust: The Green Bank Galactic Plane Survey Galactic Microwave Emission from Spinning Dust: The Green Bank Galactic Plane Survey

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20114005f&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #140.05; Bulletin of the American Astronomical Society, Vol. 34, p.1324

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Cosmic Microwave Background (CMB) experiments in recent years have attained a sufficient sensitivity to detect dust-correlated microwave emission at 15-30 GHz from dust in the Milky Way. At such frequencies, this dust-correlated emission dominates free-free, synchrotron, and other foregrounds. Draine & Lazarian (1998) proposed that this emission might be electric dipole emission from rapidly spinning dust grains. We have recently processed the Green Bank Galactic Plane Survey at 8 and 14 GHz (Langston et al. 2000) to examine the diffuse ISM emission, and found it consistent with the Draine & Lazarian theory, and very inconsistent with free-free or synchrotron emission. Given this evidence, it is likely that "spinning dust" emission dominates the diffuse ISM emission observed by MAP at 22 GHz.

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