Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 394, Issue 1, Pages L46-L50Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1745-3933.2008.00607.x
Keywords
radiation mechanisms: general; stars: formation; ISM: dust, extinction; ISM: general; radio continuum: ISM
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Funding
- Cambridge University
- STFC
- PPARC/STFC
- STFC [ST/G002916/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/G002916/1] Funding Source: researchfish
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We present observations of the Lynds' dark nebula LDN 1111 made at microwave frequencies between 14.6 and 17.2 GHz with the Arcminute Microkelvin Imager. We find emission in this frequency band in excess of a thermal free-free spectrum extrapolated from data at 1.4 GHz with matched uv coverage. This excess is > 15 sigma above the predicted emission. We fit the measured spectrum using the spinning dust model of Draine & Lazarian and find the best-fitting model parameters agree well with those derived from the Scuba data for this object by Visser, Richer & Chandler.
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