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    OH main line masers in the M82 starburst

    Access Status
    Open access via publisher
    Authors
    Argo, Megan
    Pedlar, A.
    Beswick, R.
    Muxlow, T.
    Date
    2007
    Type
    Journal Article
    
    Metadata
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    Citation
    Argo, M. and Pedlar, A. and Beswick, R. and Muxlow, T. 2007. OH main line masers in the M82 starburst. Monthly Notices of the Royal Astronomical Society. 380 (2): pp. 596-608.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1111/j.1365-2966.2007.12088.x
    ISSN
    0035-8711
    School
    Curtin Institute of Radio Astronomy
    Remarks

    The definitive version is available at www.blackwell-synergy.com

    URI
    http://hdl.handle.net/20.500.11937/11119
    Collection
    • Curtin Research Publications
    Abstract

    A study of the distribution of OH gas in the central region of the nearby active starburst galaxy M82 has confirmed two previously known bright masers and revealed several new main line masers. Three of these are seen only at 1665 MHz, one is detected only at 1667 MHz, while the rest are detected in both lines. Observations covering both the 1665 and 1667 MHz lines, conducted with both the Very Large Array (VLA) and the Multi-Element Radio Linked Interferometer Network (MERLIN), have been used to accurately measure the positions and velocities of these features. This has allowed a comparison with catalogued continuum features in the starburst such as HII regions and supernova remnants, as well as known water and satellite line OH masers. Most of the main line masers appear to be associated with known HII regions although the two detected only at 1665 MHz are seen along the same line of sight as known supernova remnants.

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