{ "id": "2301.01988", "version": "v1", "published": "2023-01-05T09:59:17.000Z", "updated": "2023-01-05T09:59:17.000Z", "title": "The Co-Ordinated Radio and Infrared Survey for High-Mass Star Formation. V. The CORNISH-South Survey and Catalogue", "authors": [ "T. Irabor", "M. G. Hoare", "M. Burton", "W. D. Cotton", "P. Diamond", "S. Dougherty", "S. P. Ellingsen", "R. Fender", "G. A. Fuller", "S. Garrington", "P. F. Goldsmith", "J. Green", "A. G. Gunn", "J. Jackson", "S. Kurtz", "S. L. Lumsden", "J. Marti", "I. McDonald", "S. Molinari", "T. J. Moore", "M. Mutale", "T. Muxlow", "T. OBrien", "R. D. Oudmaijer", "R. Paladini", "J. D. Pandian", "J. M. Paredes", "A. M. S. Richards", "A. Sanchez-Monge", "R. Spencer", "M. A. Thompson", "G. Umana", "J. S. Urquhart", "M. Wieringa", "A. Zijlstra" ], "categories": [ "astro-ph.GA", "astro-ph.SR" ], "abstract": "We present the first high spatial resolution radio continuum survey of the southern Galactic plane. The CORNISH project has mapped the region defined by $295^{\\circ} < l < 350^{\\circ}$; $|b| < 1^{\\circ}$ at 5.5-GHz, with a resolution of 2.5$^{''}$ (FWHM). As with the CORNISH-North survey, this is designed to primarily provide matching radio data to the Spitzer GLIMPSE survey region. The CORNISH-South survey achieved a root mean square noise level of $\\sim$ 0.11 mJy beam$^{-1}$, using the 6A configuration of the Australia Telescope Compact Array (ATCA). In this paper, we discuss the observations, data processing and measurements of the source properties. Above a 7$\\sigma$ detection limit, 4701 sources were detected, and their ensemble properties show similar distributions with their northern counterparts. The catalogue is highly reliable and is complete to 90 per cent at a flux density level of 1.1 mJy. We developed a new way of measuring the integrated flux densities and angular sizes of non-Gaussian sources. The catalogue primarily provides positions, flux density measurements and angular sizes. All sources with IR counterparts at 8$\\mu m$ have been visually classified, utilizing additional imaging data from optical, near-IR, mid-IR, far-IR and sub-millimetre galactic plane surveys. This has resulted in the detection of 524 H II regions of which 255 are ultra-compact H II regions, 287 planetary nebulae, 79 radio stars and 6 massive young stellar objects. The rest of the sources are likely to be extra-galactic. These data are particularly important in the characterization and population studies of compact ionized sources such as UCHII regions and PNe towards the Galactic mid-plane.", "revisions": [ { "version": "v1", "updated": "2023-01-05T09:59:17.000Z" } ], "analyses": { "keywords": [ "high-mass star formation", "cornish-south survey", "mean square noise level", "high spatial resolution radio", "co-ordinated radio" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }