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Paper: Imaging of the ARP 220 OH Megamasers with VLBI
Volume: 144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page: 227
Authors: Lonsdale, Colin J.; Diamond, P. J.; Lonsdale, Carol J.; Smith, H. E.
Abstract: Global VLBI imaging of the luminous IR galaxy Arp 220 reveals four major emission regions in the 1667 MHz line, each with complex spatial and velocity structure showing intriguing symmetries, suggestive of an AGN-related phenomenon. The continuum emission consists of about a dozen sub-mJy unresolved features which appear unrelated to the maser emission, and are interpreted as radio supernovae in an ongoing nuclear starburst.
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