文章基本信息

标题：Main line OH masers in M82
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作者：M. Argo ; A. Pedlar ; R. Beswick 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A further study of the distribution of OH gas in the central region of the nearby active starburst galaxy M82 has conrmed 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 HII 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.