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

T. D. Joseph; M. D. Filipovic; E. J. Crawford; I. Bojicic; E. L. Alexander; G. F. Wong; H. Andernach; H. Leverenz; R. P. Norris; R. Z. E. Alsaberi; C. Anderson; L. A. Barnes; L. M. Bozzetto; F. Bufano; J. D. Bunton; F. Cavallaro; J. D. Collier; H. Denes; Y. Fukui; T. Galvin; F. Haberl; A. Ingallinera; A. D. Kapinska; B. S. Koribalski; R. Kothes; D. Li; P. Maggi; C. Maitra; P. Manojlovic; J. Marvil; N. I. Maxted; A. N. O'Brien; J. M. Oliveira; C. M. Pennock; S. Riggi; G. Rowell; L. Rudnick; H. Sano; M. Sasaki; N. Seymour; R. Soria; M. Stupar; N. F. H. Tothill; C. Trigilio; K. Tsuge; G. Umana; D. Urosevic; J. Th. van Loon; E. Vardoulaki; V. Velovic; M. Yew; D. Leahy; Y.-H. Chu; M. J. Michalowski; P. J. Kavanagh; K. R. Grieve

doi:10.1093/mnras/stz2650

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

T. D. Joseph, M. D. Filipovic, E. J. Crawford, I. Bojicic, E. L. Alexander, G. F. Wong, H. Andernach, H. Leverenz, R. P. Norris, R. Z. E. Alsaberi, C. Anderson, L. A. Barnes, L. M. Bozzetto, F. Bufano, J. D. Bunton, F. Cavallaro, J. D. Collier, H. Denes, Y. Fukui, T. GalvinF. Haberl, A. Ingallinera, A. D. Kapinska, B. S. Koribalski, R. Kothes, D. Li, P. Maggi, C. Maitra, P. Manojlovic, J. Marvil, N. I. Maxted, A. N. O'Brien, J. M. Oliveira, C. M. Pennock, S. Riggi, G. Rowell, L. Rudnick, H. Sano, M. Sasaki, N. Seymour, R. Soria, M. Stupar, N. F. H. Tothill, C. Trigilio, K. Tsuge, G. Umana, D. Urosevic, J. Th. van Loon, E. Vardoulaki, V. Velovic, M. Yew, D. Leahy, Y.-H. Chu, M. J. Michalowski, P. J. Kavanagh, K. R. Grieve

Western Sydney University

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

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”Ã30.0” and 16.3”Ã15.1”, respectively. The median Root Mean Squared (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.

Original language	English
Pages (from-to)	1202-1219
Number of pages	23
Journal	Monthly Notices of the Royal Astronomical Society
Volume	490
Issue number	1
DOIs	https://doi.org/10.1093/mnras/stz2650
Publication status	Published - 2019

Keywords

Magellanic Clouds
active galactic nuclei
planetary nebulae
radio sources (astronomy)

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10.1093/mnras/stz2650

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Joseph, T. D., Filipovic, M. D., Crawford, E. J., Bojicic, I., Alexander, E. L., Wong, G. F., Andernach, H., Leverenz, H., Norris, R. P., Alsaberi, R. Z. E., Anderson, C., Barnes, L. A., Bozzetto, L. M., Bufano, F., Bunton, J. D., Cavallaro, F., Collier, J. D., Denes, H., Fukui, Y., ... 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

@article{304ed3a72e9e4f2fa02258df49abce7b,

title = "The ASKAP-EMU Early Science Project : radio continuum survey of the Small Magellanic Cloud",

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”{\~A}30.0” and 16.3”{\~A}15.1”, respectively. The median Root Mean Squared (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.",

keywords = "Magellanic Clouds, active galactic nuclei, planetary nebulae, radio sources (astronomy)",

author = "Joseph, {T. D.} and Filipovic, {M. D.} and Crawford, {E. J.} and I. Bojicic and Alexander, {E. L.} and Wong, {G. F.} and H. Andernach and H. Leverenz and Norris, {R. P.} and Alsaberi, {R. Z. E.} and C. Anderson and Barnes, {L. A.} and Bozzetto, {L. M.} and F. Bufano and Bunton, {J. D.} and F. Cavallaro and Collier, {J. D.} and H. Denes and Y. Fukui and T. Galvin and F. Haberl and A. Ingallinera and Kapinska, {A. D.} and Koribalski, {B. S.} and R. Kothes and D. Li and P. Maggi and C. Maitra and P. Manojlovic and J. Marvil and Maxted, {N. I.} and O'Brien, {A. N.} and Oliveira, {J. M.} and Pennock, {C. M.} and S. Riggi and G. Rowell and L. Rudnick and H. Sano and M. Sasaki and N. Seymour and R. Soria and M. Stupar and Tothill, {N. F. H.} and C. Trigilio and K. Tsuge and G. Umana and D. Urosevic and {van Loon}, {J. Th.} and E. Vardoulaki and V. Velovic and M. Yew and D. Leahy and Y.-H. Chu and Michalowski, {M. J.} and Kavanagh, {P. J.} and Grieve, {K. R.}",

year = "2019",

doi = "10.1093/mnras/stz2650",

language = "English",

volume = "490",

pages = "1202--1219",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

Joseph, TD, Filipovic, MD , Crawford, EJ, Bojicic, I, Alexander, EL, Wong, GF, Andernach, H, Leverenz, H, Norris, RP, Alsaberi, RZE, Anderson, C, Barnes, LA, Bozzetto, LM, Bufano, F, Bunton, JD, Cavallaro, F, Collier, JD, Denes, H, Fukui, Y, Galvin, T, Haberl, F, Ingallinera, A, Kapinska, AD, Koribalski, BS, Kothes, R, Li, D, Maggi, P, Maitra, C, Manojlovic, 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, NFH, Trigilio, C, Tsuge, K, Umana, G, Urosevic, D, van Loon, JT, Vardoulaki, E, Velovic, V, Yew, M, Leahy, D, Chu, Y-H, Michalowski, MJ, Kavanagh, PJ & Grieve, KR 2019, 'The ASKAP-EMU Early Science Project : radio continuum survey of the Small Magellanic Cloud', Monthly Notices of the Royal Astronomical Society, vol. 490, no. 1, pp. 1202-1219. https://doi.org/10.1093/mnras/stz2650

TY - JOUR

T1 - The ASKAP-EMU Early Science Project : radio continuum survey of the Small Magellanic Cloud

AU - Joseph, T. D.

AU - Filipovic, M. D.

AU - Crawford, E. J.

AU - Bojicic, I.

AU - Alexander, E. L.

AU - Wong, G. F.

AU - Andernach, H.

AU - Leverenz, H.

AU - Norris, R. P.

AU - Alsaberi, R. Z. E.

AU - Anderson, C.

AU - Barnes, L. A.

AU - Bozzetto, L. M.

AU - Bufano, F.

AU - Bunton, J. D.

AU - Cavallaro, F.

AU - Collier, J. D.

AU - Denes, H.

AU - Fukui, Y.

AU - Galvin, T.

AU - Haberl, F.

AU - Ingallinera, A.

AU - Kapinska, A. D.

AU - Koribalski, B. S.

AU - Kothes, R.

AU - Li, D.

AU - Maggi, P.

AU - Maitra, C.

AU - Manojlovic, P.

AU - Marvil, J.

AU - Maxted, N. I.

AU - O'Brien, A. N.

AU - Oliveira, J. M.

AU - Pennock, C. M.

AU - Riggi, S.

AU - Rowell, G.

AU - Rudnick, L.

AU - Sano, H.

AU - Sasaki, M.

AU - Seymour, N.

AU - Soria, R.

AU - Stupar, M.

AU - Tothill, N. F. H.

AU - Trigilio, C.

AU - Tsuge, K.

AU - Umana, G.

AU - Urosevic, D.

AU - van Loon, J. Th.

AU - Vardoulaki, E.

AU - Velovic, V.

AU - Yew, M.

AU - Leahy, D.

AU - Chu, Y.-H.

AU - Michalowski, M. J.

AU - Kavanagh, P. J.

AU - Grieve, K. R.

PY - 2019

Y1 - 2019

N2 - 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”Ã30.0” and 16.3”Ã15.1”, respectively. The median Root Mean Squared (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.

AB - 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”Ã30.0” and 16.3”Ã15.1”, respectively. The median Root Mean Squared (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.

KW - Magellanic Clouds

KW - active galactic nuclei

KW - planetary nebulae

KW - radio sources (astronomy)

UR - http://hdl.handle.net/1959.7/uws:52992

U2 - 10.1093/mnras/stz2650

DO - 10.1093/mnras/stz2650

M3 - Article

SN - 0035-8711

VL - 490

SP - 1202

EP - 1219

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

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

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