CaltechAUTHORS
Published March 2023 | Version Published + Supplemental Material
Journal Article Open

The coordinated radio and infrared survey for high-mass star formation – V. The CORNISH-South survey and catalogue

Creators

  • 1. ROR icon University of Leeds
  • 2. ROR icon Armagh Observatory
  • 3. ROR icon National Radio Astronomy Observatory
  • 4. ROR icon University of Manchester
  • 5. ROR icon Atacama Large Millimeter Submillimeter Array
  • 6. ROR icon University of Tasmania
  • 7. ROR icon University of Oxford
  • 8. ROR icon University of Cologne
  • 9. ROR icon Jet Propulsion Lab
  • 10. ROR icon National Autonomous University of Mexico
  • 11. ROR icon University of Jaén
  • 12. ROR icon The Open University
  • 13. ROR icon National Institute for Astrophysics
  • 14. ROR icon Liverpool John Moores University
  • 15. ROR icon California Institute of Technology
  • 16. ROR icon Indian Institute of Space Science and Technology
  • 17. ROR icon University of Barcelona
  • 18. ROR icon University of Hertfordshire
  • 19. ROR icon Osservatorio Astrofisico di Catania
  • 20. ROR icon University of Kent

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° < l < 350°; |b| < 1° at 5.5 GHz, with a resolution of 2.5 arcsec (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 ∼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 7σ 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 μm 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 extragalactic. 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.

Additional Information

© 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). TI acknowledges the support of the Science and Technology Facilities Council of the United Kingdom (STFC) through grant ST/P00041X/1 and the OSAPND scholarship (Nigeria). The work done by PFG was carried out in part at the Jet Propulsion Laboratory, which is operated by the California Institute of Technology under a contract with the National Aeronautics and Space Administration (80NM0018D0004). JM acknowledges financial support from the State research agency, Spanish Ministry of Science and Innovation under grant PID2019-105510GB-C32. JMP acknowledges financial support from the State Agency for Research of the Spanish Ministry of Science and Innovation under grant PID2019-105510GB-C31 and through the Unit of Excellence María de Maeztu 2020–2023 award to the Institute of Cosmos Sciences (CEX2019-000918-M). GAF acknowledges support from the Collaborative Research Centre 956, funded by the Deutsche Forschungsgemeinschaft (DFG) project ID 184018867. The Australia Telescope Compact Array (ATCA) is part of the Australia Telescope National Facility which is funded by the Australian Government for operation as a National Facility managed by CSIRO. We acknowledge the Gomeroi people as the traditional owners of the Observatory site. This work made use of Montage, aplpy and astropy python libraries in the batch processing of FITS files. DATA AVAILABILITY. All data (images and catalogues) are described in the text and available on the cornish website at https://cornish-south.leeds.ac.uk/ to download in csv (catalogues), uv files and FITS (images) formats, catalogues are already available. Fits images and uv-data will be available by the end of February 2023.

Attached Files

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Supplemental Material - stad005_supplemental_file.txt

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Additional details

Additional titles

Alternative title
The Co-Ordinated Radio and Infrared Survey for High-Mass Star Formation. V. The CORNISH-South Survey and Catalogue

Identifiers

Eprint ID
120262
Resolver ID
CaltechAUTHORS:20230321-821389800.58

Funding

Science and Technology Facilities Council (STFC)
ST/P00041X/1
Presidential Amnesty Programme (Nigeria)
NASA/JPL/Caltech
80NM0018D0004
Ministerio de Ciencia e Innovación (MICINN)
PID2019-105510GB-C32
Ministerio de Ciencia e Innovación (MICINN)
PID2019-105510GB-C31
Centro de Excelencia Severo Ochoa
CEX2019-000918-M
Deutsche Forschungsgemeinschaft (DFG)
184018867

Dates

Created
2023-05-17
Created from EPrint's datestamp field
Updated
2023-05-17
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Infrared Processing and Analysis Center (IPAC)