出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:Measurements of CMB fluctuations will be performed most sensitively between 1 and 100 GHz
(Banday et al. 2003, Fig. 6). In this frequency range however, several foregrounds limit the
access to the CMB. Among these, the so-called anomalous emission which is probably of dust
origin and is the least well known, motivating further theoretical and observational studies. A
better understanding of this emission will help remove galactic foregrounds and will bring new
constraints on interstellar grains. We discuss here several dust emission processes that could be
at the origin of this anomalous emission. Emphasis is given to spinning, small dust grains which
seem to be favored by recent data analysis.