Abstract
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 α = 0.15 ± 0.07 (where S ∝ ν-α) between 1.4 and 17.9 GHz for the sample. © 2008 RAS.
Original language | English |
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Pages (from-to) | 809-822 |
Number of pages | 13 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 385 |
Issue number | 2 |
DOIs | |
Publication status | Published - Apr 2008 |
Keywords
- H II regions
- ISM: clouds
- Radiation mechanisms: thermal
- Radio continuum: ISM