High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675
We present 25 arcsec resolution radio images of ?ve Lynds Dark Nebulae (L675, L944, L1103,L1111 and L1246) at 16 GHz made with the Arcminute Microkelvin Imager (AMI) LargeArray. These objects were previously observed with the AMI Small Array to have an excessof emission at microwave frequencies rela...
| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Wiley-Blackwell Publishing Ltd.
2010
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| Online Access: | http://mnrasl.oxfordjournals.org/content/403/1/L46.full.pdf+html http://hdl.handle.net/20.500.11937/33966 |
| _version_ | 1848754092154814464 |
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| author | Scaife, A. Green, D. Pooley, G. Davies, M. Franzen, Thomas Grainge, K. Hobson, M. Hurley-Walker, Natasha Lasenby, A. Olamaie, M. Richer, J. Rodriguez-Gonzalvez, C. Saunders, R. Scott, P. Shimwell, T. Titterington, D. Waldram, E. Zwart, J. |
| author_facet | Scaife, A. Green, D. Pooley, G. Davies, M. Franzen, Thomas Grainge, K. Hobson, M. Hurley-Walker, Natasha Lasenby, A. Olamaie, M. Richer, J. Rodriguez-Gonzalvez, C. Saunders, R. Scott, P. Shimwell, T. Titterington, D. Waldram, E. Zwart, J. |
| author_sort | Scaife, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present 25 arcsec resolution radio images of ?ve Lynds Dark Nebulae (L675, L944, L1103,L1111 and L1246) at 16 GHz made with the Arcminute Microkelvin Imager (AMI) LargeArray. These objects were previously observed with the AMI Small Array to have an excessof emission at microwave frequencies relative to lower frequency radio data. In L675, we ?nda ?at spectrum compact radio counterpart to the 850µm emission seen with SubmillimetreCommon-User Bolometer Array (SCUBA) and suggest that it is cm-wave emission from apreviously unknown deeply embedded young protostar. In the case of L1246, the cm-waveemission is spatially correlated with 8µm emission seen with Spitzer. Since the mid-infraredemission is present only in Spitzer band 4 we suggest that it arises from a population ofpolycyclic aromatic hydrocarbon molecules, which also give rise to the cm-wave emissionthrough spinning dust emission. |
| first_indexed | 2025-11-14T08:34:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-33966 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:34:54Z |
| publishDate | 2010 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-339662017-02-28T01:47:10Z High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 Scaife, A. Green, D. Pooley, G. Davies, M. Franzen, Thomas Grainge, K. Hobson, M. Hurley-Walker, Natasha Lasenby, A. Olamaie, M. Richer, J. Rodriguez-Gonzalvez, C. Saunders, R. Scott, P. Shimwell, T. Titterington, D. Waldram, E. Zwart, J. ISM: general radiation mechanisms: general ISM: clouds stars: formation We present 25 arcsec resolution radio images of ?ve Lynds Dark Nebulae (L675, L944, L1103,L1111 and L1246) at 16 GHz made with the Arcminute Microkelvin Imager (AMI) LargeArray. These objects were previously observed with the AMI Small Array to have an excessof emission at microwave frequencies relative to lower frequency radio data. In L675, we ?nda ?at spectrum compact radio counterpart to the 850µm emission seen with SubmillimetreCommon-User Bolometer Array (SCUBA) and suggest that it is cm-wave emission from apreviously unknown deeply embedded young protostar. In the case of L1246, the cm-waveemission is spatially correlated with 8µm emission seen with Spitzer. Since the mid-infraredemission is present only in Spitzer band 4 we suggest that it arises from a population ofpolycyclic aromatic hydrocarbon molecules, which also give rise to the cm-wave emissionthrough spinning dust emission. 2010 Journal Article http://hdl.handle.net/20.500.11937/33966 http://mnrasl.oxfordjournals.org/content/403/1/L46.full.pdf+html Wiley-Blackwell Publishing Ltd. restricted |
| spellingShingle | ISM: general radiation mechanisms: general ISM: clouds stars: formation Scaife, A. Green, D. Pooley, G. Davies, M. Franzen, Thomas Grainge, K. Hobson, M. Hurley-Walker, Natasha Lasenby, A. Olamaie, M. Richer, J. Rodriguez-Gonzalvez, C. Saunders, R. Scott, P. Shimwell, T. Titterington, D. Waldram, E. Zwart, J. High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 |
| title | High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 |
| title_full | High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 |
| title_fullStr | High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 |
| title_full_unstemmed | High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 |
| title_short | High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675 |
| title_sort | high-resolution ami large array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in l675 |
| topic | ISM: general radiation mechanisms: general ISM: clouds stars: formation |
| url | http://mnrasl.oxfordjournals.org/content/403/1/L46.full.pdf+html http://hdl.handle.net/20.500.11937/33966 |