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The Southern H II Region Discovery Survey is a survey of the third and fourth quadrants of the Galactic plane that will detect radio recombination line (RRL) and continuum emission at cm-wavelengths from several hundred H II region candidates using the Australia Telescope Compact Array. The targets for this survey come from the WISE Catalog of Galactic H II Regions and were identified based on mid-infrared and radio continuum emission. In this pilot project, two different configurations of the Compact Array Broad Band receiver and spectrometer system were used for short test observations. The pilot surveys detected RRL emission from 36 of 53 H II region candidates, as well as seven known H II regions that were included for calibration. These 36 recombination line detections confirm that the candidates are true H II regions and allow us to estimate their distances.

Item Type:	Refereed Article
Keywords:	galaxy: structure, HII regions, radio lines, ISM, surveys
Research Division:	Physical Sciences
Research Group:	Astronomical sciences
Research Field:	Galactic astronomy
Objective Division:	Expanding Knowledge
Objective Group:	Expanding knowledge
Objective Field:	Expanding knowledge in the physical sciences
UTAS Author:	Brown, C (Mrs Courtney Brown)
UTAS Author:	Dickey, JM (Professor John Dickey)
ID Code:	122645
Year Published:	2017
Funding Support:	Australian Research Council (DP110104101)
Web of Science® Times Cited:	12
Deposited By:	Mathematics and Physics
Deposited On:	2017-11-21
Last Modified:	2018-04-27
Downloads:	151 View Download Statistics