Main line OH masers in M82

Megan Argo, A Pedlar, R J Beswick, T W B Muxlow, D Fenech

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    A further study of the distribution of OH gas in the central region of the nearby active starburst galaxy M82 has confirmed two previously known bright maser spots and revealed several new main line masers. Two 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 HI I regions and supernova remnants, as well as known water and excited OH masers. Most of the main line masers appear to be associated with known HII regions, although three are seen along the same line of sight as known supernova remnants.
    Original languageEnglish
    Title of host publicationhost publication
    Publication statusPublished - 2006
    EventProceedings of the 8th European VLBI Network Symposium -
    Duration: 1 Jan 1824 → …


    ConferenceProceedings of the 8th European VLBI Network Symposium
    Period1/01/24 → …
    Internet address


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