The ASKAP EMU early Science project: Radio continuum survey of the Small Magellanic Cloud
Joseph TD, Filipović MD, Crawford EJ, Bojičić I, Alexander EL, Wong GF, Andernach H, Leverenz H, Norris RP, Alsaberi RZ, Anderson C, Barnes LA, Bozzetto LM, Bufano F, Bunton JD, Cavallaro F, Collier JD, Dénes H, Fukui Y, Galvin T, Haberl F, Ingallinera A, Kapinska AD, Koribalski BS, Kothes R, Li D, Maggi P, Maitra C, Manojlović P, Marvil J, Maxted NI, O’Brien AN, Oliveira JM, Pennock CM, Riggi S, Rowell G, Rudnick L, Sano H, Sasaki M, Seymour N, Soria R, Stupar M, Tothill NF, Trigilio C, Tsuge K, Umana G, Urošević D, Van Loon JT, Vardoulaki E, Velović V, Yew M, Leahy D, Chu YH, Michałowski MJ, Kavanagh PJ, Grieve KR (2019)
Publication Type: Journal article, Review article
Publication year: 2019
Journal
Book Volume: 490
Pages Range: 1202-1219
Journal Issue: 1
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.
Authors with CRIS profile
Involved external institutions
University of Manchester
United Kingdom (GB)
University of Western Sydney
Australia (AU)
Universidad de Guanajuato (UG)
Mexico (MX)
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
Australia (AU)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
University of New South Wales (UNSW)
Australia (AU)
Astron
Netherlands (NL)
Nagoya University / 名古屋大学
Japan (JP)
Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics
Germany (DE)
National Radio Astronomy Observatory
United States (USA) (US)
National Research Council / Conseil national de recherches Canada
Canada (CA)
National Astronomical Observatories, Chinese Academy of Sciences / 中国科学院国家天文台 (NAOC)
China (CN)
University of Keele
United Kingdom (GB)
University of Adelaide
Australia (AU)
Curtin University
Australia (AU)
University of Western Sydney
Australia (AU)
University of Belgrade / Универзитет у Београду
Serbia (RS)
Rheinische Friedrich-Wilhelms-Universität Bonn
Germany (DE)
University of Calgary
Canada (CA)
Institute of Astronomy and Astrophysics, Academia Sinica
Taiwan (TW)
Adam Mickiewicz University / Uniwersytet im. Adama Mickiewicza w Poznaniu (UAM)
Poland (PL)
Dublin Institute for Advanced Studies (DIAS)
Ireland (IE)
Université de Strasbourg (UDS)
France (FR)
University of Minnesota (UMN)
United States (USA) (US)
University of Chinese Academy of Sciences
China (CN)
United Kingdom (GB)
University of Western Sydney
Australia (AU)
Universidad de Guanajuato (UG)
Mexico (MX)
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
Australia (AU)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
University of New South Wales (UNSW)
Australia (AU)
Astron
Netherlands (NL)
Nagoya University / 名古屋大学
Japan (JP)
Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics
Germany (DE)
National Radio Astronomy Observatory
United States (USA) (US)
National Research Council / Conseil national de recherches Canada
Canada (CA)
National Astronomical Observatories, Chinese Academy of Sciences / 中国科学院国家天文台 (NAOC)
China (CN)
University of Keele
United Kingdom (GB)
University of Adelaide
Australia (AU)
Curtin University
Australia (AU)
University of Western Sydney
Australia (AU)
University of Belgrade / Универзитет у Београду
Serbia (RS)
Rheinische Friedrich-Wilhelms-Universität Bonn
Germany (DE)
University of Calgary
Canada (CA)
Institute of Astronomy and Astrophysics, Academia Sinica
Taiwan (TW)
Adam Mickiewicz University / Uniwersytet im. Adama Mickiewicza w Poznaniu (UAM)
Poland (PL)
Dublin Institute for Advanced Studies (DIAS)
Ireland (IE)
Université de Strasbourg (UDS)
France (FR)
University of Minnesota (UMN)
United States (USA) (US)
University of Chinese Academy of Sciences
China (CN)
How to cite
APA:
Joseph, T.D., Filipović, M.D., Crawford, E.J., Bojičić, I., Alexander, E.L., Wong, G.F.,... Grieve, K.R. (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. https://doi.org/10.1093/mnras/stz2650
MLA:
Joseph, T. D., et al. "The ASKAP EMU early Science project: Radio continuum survey of the Small Magellanic Cloud." Monthly Notices of the Royal Astronomical Society 490.1 (2019): 1202-1219.
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