Abstract
We present the data and initial results from the first pilot survey of the EvolutionaryMap of the Universe (EMU), observed at 944MHz with the Australian Square Kilometre Array Pathfinder (ASKAP) telescope. The survey covers 270 deg2 of an area covered by the Dark Energy Survey, reaching a depth of 25-30 μJy beam-1 rms at a spatial resolution of ~11-18 arcsec, resulting in a catalogue of ~220 000 sources, of which ~180 000 are single-component sources. Here we present the catalogue of single-component sources, together with (where available) optical and infrared cross-identifications, classifications, and redshifts. This survey explores a new region of parameter space compared to previous surveys. Specifically, the EMU Pilot Survey has a high density of sources, and also a high sensitivity to low surface brightness emission. These properties result in the detection of types of sources that were rarely seen in or absent from previous surveys. We present some of these new results here.
Original language | English |
---|---|
Article number | e046 |
Number of pages | 26 |
Journal | Publications of the Astronomical Society of Australia |
Volume | 38 |
DOIs | |
Publication status | Published - 7 Sept 2021 |
Keywords
- Extragalactic astronomy
- Radio astronomy
- Sky surveys
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In: Publications of the Astronomical Society of Australia, Vol. 38, e046, 07.09.2021.
Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - The Evolutionary Map of the Universe pilot survey
AU - Norris, Ray P.
AU - Marvil, Joshua
AU - Collier, J. D.
AU - Kapińska, Anna D.
AU - O'Brien, Andrew N.
AU - Rudnick, L.
AU - Andernach, Heinz
AU - Asorey, Jacobo
AU - Brown, Michael J.I.
AU - Brüggen, Marcus
AU - Crawford, Evan
AU - English, Jayanne
AU - Ur Rahman, Syed Faisal
AU - Filipović, Miroslav D.
AU - Gordon, Yjan
AU - Gürkan, Gülay
AU - Hale, Catherine
AU - Hopkins, Andrew M.
AU - Huynh, Minh T.
AU - HyeongHan, Kim
AU - Jee, M. James
AU - Koribalski, Bärbel S.
AU - Lenc, Emil
AU - Luken, Kieran
AU - Parkinson, David
AU - Prandoni, Isabella
AU - Raja, Wasim
AU - Reiprich, Thomas H.
AU - Riseley, Christopher J.
AU - Shabala, Stanislav S.
AU - Sheil, Jaimie R.
AU - Vernstrom, Tessa
AU - Whiting, Matthew T.
AU - Allison, James R.
AU - Anderson, C. S.
AU - Ball, Lewis
AU - Bell, Martin
AU - Bunton, John
AU - Galvin, T. J.
AU - Gupta, Neeraj
AU - Hotan, Aidan
AU - Jacka, Colin
AU - MacGregor, Peter J.
AU - Mahony, Elizabeth K.
AU - Maio, Umberto
AU - Moss, Vanessa
AU - Pandey-Pommier, M.
AU - Voronkov, Maxim A.
N1 - Funding Information: Acknowledgements. We thank an anonymous referee for valuable feedback on an earlier iteration of this paper. The Australian SKA Pathfinder is part of the Australia Telescope National Facility which is managed by CSIRO. Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. Establishment of the Murchison Radio-astronomy Observatory was funded by the Australian Government and the Government of Western Australia. ASKAP uses advanced supercomputing resources at the Pawsey Supercomputing Centre. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. This work makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. It also makes use of data from the European Space Agency (ESA) mission Gaia, and we acknowledge the institutions listed on https:// gea.esac.esa.int/archive/documentation/GEDR3/Miscellaneous/sec/_acknowl/ It also uses public archival data from the DES and we acknowledge the institutions listed on https://www.darkenergysurvey.org/the-des-project/ data-access/. This research has made use of the ‘Aladin sky atlas’ developed at CDS, Strasbourg Observatory, France (Boch & Fernique 2014). This research uses services or data provided by the Astro Data Lab at NSF’s National Optical-Infrared Astronomy Research Laboratory. NOIRLab is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under a cooperative agreement with the National Science Foundation. Partial support for LR comes from US National Science Foundation Grant AST 17-14205 to the University of Minnesota. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. CLH acknowledges support from the Leverhulme Trust through an Early Career Research Fellowship. IP acknowledges support from CSIRO under its Distinguished Research Visitor Programme, and from INAF through the SKA/CTA PRIN “FORECaST” and the PRIN MAIN STREAM “SAuROS” projects. MJJ acknowledges support from the National Research Foundation of Korea under the program nos. 2017R1A2B2004644 and 2017R1A4A1015178. CJR acknowledges financial support from the ERC Starting Grant ‘DRANOEL’, number 714245. HA benefited from grant CIIC 174/2021 of Universidad de Guanajuato. Funding Information: We thank an anonymous referee for valuable feedback on an earlier iteration of this paper. The Australian SKA Pathfinder is part of the Australia Telescope National Facility which is managed by CSIRO. Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. Establishment of the Murchison Radio-astronomy Observatory was funded by the AustralianGovernment and the Government ofWestern Australia. ASKAP uses advanced supercomputing resources at the Pawsey Supercomputing Centre. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. This work makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. It also makes use of data from the European Space Agency (ESA) mission Gaia, and we acknowledge the institutions listed on https:// gea.esac.esa.int/archive/documentation/GEDR3/Miscellaneous/sec/_acknowl/ It also uses public archival data from the DES and we acknowledge the institutions listed on https://www.darkenergysurvey.org/the-des-project/ data-access/. This research has made use of the 'Aladin sky atlas' developed at CDS, Strasbourg Observatory, France (Boch & Fernique 2014). This research uses services or data provided by the Astro Data Lab at NSF's National Optical-Infrared Astronomy Research Laboratory. NOIRLab is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under a cooperative agreement with the National Science Foundation. Partial support for LR comes from US National Science Foundation Grant AST 17-14205 to the University of Minnesota. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. CLH acknowledges support from the Leverhulme Trust through an Early Career Research Fellowship. IP acknowledges support from CSIRO under its Distinguished Research Visitor Programme, and from INAF through the SKA/CTA PRIN "FORECaST" and the PRIN MAIN STREAM "SAuROS" projects. MJJ acknowledges support from the National Research Foundation of Korea under the program nos. 2017R1A2B2004644 and 2017R1A4A1015178. CJR acknowledges financial support from the ERC Starting Grant 'DRANOEL', number 714245. HA benefited from grant CIIC 174/2021 of Universidad de Guanajuato. Publisher Copyright: © The Author(s), 2021.
PY - 2021/9/7
Y1 - 2021/9/7
N2 - We present the data and initial results from the first pilot survey of the EvolutionaryMap of the Universe (EMU), observed at 944MHz with the Australian Square Kilometre Array Pathfinder (ASKAP) telescope. The survey covers 270 deg2 of an area covered by the Dark Energy Survey, reaching a depth of 25-30 μJy beam-1 rms at a spatial resolution of ~11-18 arcsec, resulting in a catalogue of ~220 000 sources, of which ~180 000 are single-component sources. Here we present the catalogue of single-component sources, together with (where available) optical and infrared cross-identifications, classifications, and redshifts. This survey explores a new region of parameter space compared to previous surveys. Specifically, the EMU Pilot Survey has a high density of sources, and also a high sensitivity to low surface brightness emission. These properties result in the detection of types of sources that were rarely seen in or absent from previous surveys. We present some of these new results here.
AB - We present the data and initial results from the first pilot survey of the EvolutionaryMap of the Universe (EMU), observed at 944MHz with the Australian Square Kilometre Array Pathfinder (ASKAP) telescope. The survey covers 270 deg2 of an area covered by the Dark Energy Survey, reaching a depth of 25-30 μJy beam-1 rms at a spatial resolution of ~11-18 arcsec, resulting in a catalogue of ~220 000 sources, of which ~180 000 are single-component sources. Here we present the catalogue of single-component sources, together with (where available) optical and infrared cross-identifications, classifications, and redshifts. This survey explores a new region of parameter space compared to previous surveys. Specifically, the EMU Pilot Survey has a high density of sources, and also a high sensitivity to low surface brightness emission. These properties result in the detection of types of sources that were rarely seen in or absent from previous surveys. We present some of these new results here.
KW - Extragalactic astronomy
KW - Radio astronomy
KW - Sky surveys
UR - http://www.scopus.com/inward/record.url?scp=85141157756&partnerID=8YFLogxK
U2 - 10.1017/pasa.2021.42
DO - 10.1017/pasa.2021.42
M3 - Article
AN - SCOPUS:85141157756
SN - 1323-3580
VL - 38
JO - Publications of the Astronomical Society of Australia
JF - Publications of the Astronomical Society of Australia
M1 - e046
ER -