A pilot survey for the H2O southern Galactic plane survey

Andrew J. Walsh, Nadia Lo, Michael G. Burton, Graeme L. White, Cormac R. Purcell, Steven N. Longmore, Chris J. Phillips, Kate J. Brooks

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


We describe observations with the Mopra radiotelescope designed to assess the feasibility of the H2O Maser Southern Galactic Plane Survey. We mapped two one-square-degree regions along the Galactic plane using the new 12-mm receiver and the UNSW Mopra spectrometer. We covered the entire spectrum between 19.5 and 27.5 GHz using this setup with the main aim of finding out which spectral lines can be detected with a quick mapping survey. We report on detected emission from H2O masers, NH3 inversion transitions (1,1), (2,2) and (3,3), HC3N (3-2), as well as several radio recombination lines.

Original languageEnglish
Pages (from-to)105-113
Number of pages9
JournalPublications of the Astronomical Society of Australia
Issue number2
Publication statusPublished - 2008
Externally publishedYes


  • Galaxy: structure
  • ISM: molecules
  • Masers
  • Stars: formation
  • Surveys


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