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    High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675

    Access Status
    Fulltext not available
    Authors
    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.
    Date
    2010
    Type
    Journal Article
    
    Metadata
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    Citation
    Scaife, A. and Green, D. and Pooley, G. and Davies, M. and Franzen, T. and Grainge, K. and Hobson, M. et al. 2010. High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675. Monthly Notices of the Royal Astronomical Society: Letters. 403: pp. L46-L50.
    Source Title
    Monthly Notices of the Royal Astronomical Society: Letters
    Additional URLs
    http://mnrasl.oxfordjournals.org/content/403/1/L46.full.pdf+html
    ISSN
    1745-3925
    URI
    http://hdl.handle.net/20.500.11937/33966
    Collection
    • Curtin Research Publications
    Abstract

    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.

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