出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We have observed the Perseus Molecular cloud at 33GHz at 7 arcminute resolution with the Very
Small Array (VSA), which was previously identified as a strong source of anomalous dust correlated
microwave emission at 1◦ with the COSMOSOMAS experiment. This emission represents
a relatively new and poorly understood galactic foreground which may be significant at intermediate
galactic latitudes. The angular resolution of the VSA makes it ideal for comparison with
the IRAS satellite survey and is similar to that of the HFI channels of the forthcoming Planck
mission. The morphology of this emission at 33 GHz consists of several 10 arcminute hot-spots
coincident with the IRAS ‘knots’ in G159.6-18.5 plus a strange decrement, which is probably
a hole in the diffuse anomalous component. We find the IRAS 25 mm data the most correlated
template at 77% using the Pearson correlation statistic.
