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Home List of Titles An Australia Telescope Compact Array 20-cm radio continuum study of the Large Magellanic Cloud
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/30097
- An Australia Telescope Compact Array 20-cm radio continuum study of the Large Magellanic Cloud
- Hughes, Annie; Staveley-Smith, Lister; Kim, S.; Wolleben, Maik; Filipovic, Miroslav D.
- We present a mosaic image of the 1.4-GHz radio continuum emission from the Large Magellanic Cloud (LMC) observed with the Australia Telescope Compact Array (ATCA) and the Parkes Telescope. The mosaic covers 10°8 x 12°3 with an angular resolution of 40 arcsec, corresponding to a spatial scale of ~10 pc in the LMC. The final image is suitable for studying emission on all scales between 40 arcsec and the surveyed area. In this paper, we discuss (i) the characteristics of the LMC's diffuse and compact radio continuum emission, (ii) the fraction of the emission produced by thermal processes and the implied star formation rate in the LMC and (iii) variations in the radio spectral index across the LMC. Two non-standard reduction techniques that we used to process the ATCA visibility data may be of interest for future wide-field radio continuum surveys. The data are open to the astronomical community and should be a rich resource for studies of individual objects such as supernova remnants, Hii regions and planetary nebulae (PNe), as well as extended features such as the diffuse emission from synchrotron radiation.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing
- Monthly Notices of the Royal Astronomical Society, Vol. 382, no. 2 (Dec 2007), p. 543-552
- Publication year
- Galaxies; Interferometric techniques; ISM; Large Magellanic Cloud; LMC; Radio continuum
- Blackwell Publishing
- Publisher URL
- Copyright © 2007 Royal Astronomical Society.
- Peer reviewed