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  The ASKAP EMU Early Science Project: radio continuum survey of the Small Magellanic Cloud

Joseph, T. D., Filipović, M. D., Crawford, E. J., Bojičić, I., Alexander, E. L., Wong, G. F., et al. (2019). The ASKAP EMU Early Science Project: radio continuum survey of the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 490(1), 1202-1219. doi:10.1093/mnras/stz2650.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-8552-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-8553-7
Genre: Journal Article

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Joseph, T. D., Author
Filipović, M. D., Author
Crawford, E. J., Author
Bojičić, I., Author
Alexander, E. L., Author
Wong, G. F., Author
Andernach, H., Author
Leverenz, H., Author
Norris, R. P., Author
Alsaberi, R. Z. E., Author
Anderson, C., Author
Barnes, L.A., Author
Bozzetto, L. M., Author
Bufano, F., Author
Bunton, J. D., Author
Cavallaro, F., Author
Collier, J. D., Author
Dénes, H., Author
Fukui, Y., Author
Galvin, T., Author
Haberl, F.1, Author              Ingallinera, A., AuthorKapinska, A. D., AuthorKoribalski, B. S., AuthorKothes, R., AuthorLi, D., AuthorMaggi, P., AuthorMaitra, C.1, Author              Manojlović, P., AuthorMarvil, J., AuthorMaxted, N. I., AuthorBrien, A. N. O, AuthorOliveira, J. M., AuthorPennock, C. M., AuthorRiggi, S., AuthorRowell, G., AuthorRudnick, L., AuthorSano, H., AuthorSasaki, M., AuthorSeymour, N., AuthorSoria, R., AuthorStupar, M., AuthorTothill, N. F. H., AuthorTrigilio, C., AuthorTsuge, K., AuthorUmana, G., AuthorUrošević, D., Authorvan Loon, J. Th., AuthorVardoulaki, E., AuthorVelović, V., AuthorYew, M., AuthorLeahy, D., AuthorChu, Y.-H., AuthorMicha\{l}owski, M. J., AuthorKavanagh, P. J., AuthorGrieve, K. R., Author more..
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              

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 Abstract: We present two new radio continuum images from the Australian Square Kilometre Array Pathfinder (ASKAP) survey in the direction of the Small Magellanic Cloud (SMC). These images are part of the Evolutionary Map of the Universe (EMU) Early Science Project (ESP) survey of the Small and Large Magellanic Clouds. The two new source lists produced from these images contain radio continuum sources observed at 960 MHz (4489 sources) and 1320 MHz (5954 sources) with a bandwidth of 192 MHz and beam sizes of 30.0 × 30.0 arcsec2 and 16.3 × 15.1 arcsec2, respectively. The median root mean square (RMS) noise values are 186 μJy beam−1 (960 MHz) and 165 μJy beam−1 (1320 MHz). To create point source catalogues, we use these two source lists, together with the previously published Molonglo Observatory Synthesis Telescope (MOST) and the Australia Telescope Compact Array (ATCA) point source catalogues to estimate spectral indices for the whole population of radio point sources found in the survey region. Combining our ASKAP catalogues with these radio continuum surveys, we found 7736 point-like sources in common over an area of 30 deg2. In addition, we report the detection of two new, low surface brightness supernova remnant candidates in the SMC. The high sensitivity of the new ASKAP ESP survey also enabled us to detect the bright end of the SMC planetary nebula sample, with 22 out of 102 optically known planetary nebulae showing point-like radio continuum emission. Lastly, we present several morphologically interesting background radio galaxies.

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 Dates: 2019-09-21
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1093/mnras/stz2650
 Degree: -

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Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 490 (1) Sequence Number: - Start / End Page: 1202 - 1219 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150