期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 385, 期 2, 页码 809-822出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2007.12743.x
关键词
radiation mechanisms : thermal; ISM : clouds; HII regions; radio continuum : ISM
We present observations between 14.2 and 17.9 GHz of 16 Galactic H II regions made with the Arcminute Microkelvin Imager. In conjunction with data from the literature at lower radio frequencies we investigate the possibility of a spinning dust component in the spectra of these objects. We conclude that there is no significant evidence for spinning dust towards these sources and measure an average spectral index of alpha = 0.15 +/- 0.07 (where S proportional to nu(-alpha)) between 1.4 and 17.9 GHz for the sample.
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