An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager
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 u? coverage....
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing Ltd.
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/5098 |
| _version_ | 1848744701346185216 |
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| author | Scaife, A. Hurley-Walker, Natasha Green, D. Davies, M. Grainge, K. Hobson, M. Lasenby, A. López-Caniego, M. Pooley, G. Saunders, R. Scott, P. Titterington, D. Waldram, E. Zwart, J. |
| author_facet | Scaife, A. Hurley-Walker, Natasha Green, D. Davies, M. Grainge, K. Hobson, M. Lasenby, A. López-Caniego, M. Pooley, G. Saunders, R. Scott, P. Titterington, D. Waldram, E. Zwart, J. |
| author_sort | Scaife, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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 u? coverage. This excess is >15s 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. © 2009 The Authors. Journal compilation © 2009 RAS. |
| first_indexed | 2025-11-14T06:05:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-5098 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:05:39Z |
| publishDate | 2009 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-50982017-09-13T14:47:33Z An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager Scaife, A. Hurley-Walker, Natasha Green, D. Davies, M. Grainge, K. Hobson, M. Lasenby, A. López-Caniego, M. Pooley, G. Saunders, R. Scott, P. Titterington, D. Waldram, E. Zwart, J. 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 u? coverage. This excess is >15s 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. © 2009 The Authors. Journal compilation © 2009 RAS. 2009 Journal Article http://hdl.handle.net/20.500.11937/5098 10.1111/j.1745-3933.2008.00607.x Wiley-Blackwell Publishing Ltd. unknown |
| spellingShingle | Scaife, A. Hurley-Walker, Natasha Green, D. Davies, M. Grainge, K. Hobson, M. Lasenby, A. López-Caniego, M. Pooley, G. Saunders, R. Scott, P. Titterington, D. Waldram, E. Zwart, J. An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager |
| title | An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager |
| title_full | An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager |
| title_fullStr | An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager |
| title_full_unstemmed | An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager |
| title_short | An excess of emission in the dark cloud LDN 1111 with the arcminute microkelvin imager |
| title_sort | excess of emission in the dark cloud ldn 1111 with the arcminute microkelvin imager |
| url | http://hdl.handle.net/20.500.11937/5098 |