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Unexpected circular radio objects at high Galactic latitude

Publications of the Astronomical Society of Australia, Volume 38, Article e003, Year 2021

We have found a class of circular radio objects in the Evolutionary Map of the Universe Pilot Survey, using the Australian Square Kilometre Array Pathfinder telescope. The objects appear in radio images as circular edge-brightened discs, about one arcmin diameter, that are unlike other objects previously reported in the literature. We explore several possible mechanisms that might cause these objects, but none seems to be a compelling explanation.

Norris, Ray P.
1. Australia, Penrith Western Sydney University
2. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Intema, Huib T.
1. Australia, Perth Curtin University
2. Netherlands, Leiden Sterrewacht Leiden
Kapińska, Anna D.
1. United States, Socorro National Radio Astronomy Observatory Socorro
Koribalski, Baerbel S.
1. Australia, Penrith Western Sydney University
2. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Lenc, Emil
1. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Rudnick, Lawrence
1. United States, Minneapolis University of Minnesota Twin Cities
Alsaberi, R. Z.E.
1. Australia, Penrith Western Sydney University
Anderson, Craig S.
1. United States, Socorro National Radio Astronomy Observatory Socorro
Anderson, Gemma E.
1. Australia, Perth Curtin University
Crawford, Evan J.
1. Australia, Penrith Western Sydney University
Crocker, Roland M.
1. Australia, Canberra The Australian National University
English, Jayanne
1. Canada, Winnipeg University of Manitoba
Filipovíc, Miroslav D.
1. Australia, Penrith Western Sydney University
Galvin, Timothy J.
1. Australia, Perth Curtin University
Hopkins, Andrew M.
1. Australia, Sydney Macquarie University
Hurley-Walker, Natasha
1. Australia, Perth Curtin University
Inoue, Susumu
1. Japan, Wako Riken
Luken, Kieran J.
1. Australia, Penrith Western Sydney University
2. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
MacGregor, Peter J.
1. Australia, Penrith Western Sydney University
2. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Manojlović, Perica
1. Australia, Penrith Western Sydney University
Marvil, Joshua R.
1. United States, Socorro National Radio Astronomy Observatory Socorro
O'Brien, Andrew N.
1. Australia, Penrith Western Sydney University
2. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
3. United States, Milwaukee University of Wisconsin-milwaukee
Park, Laurence
1. Australia, Penrith Western Sydney University
Raja, Wasim
1. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Shobhana, Devika
1. Australia, Penrith Western Sydney University
Venturi, Tiziana
1. Italy, Bologna Istituto Di Radioastronomia, Bologna
Collier, Jordan D.
1. Australia, Penrith Western Sydney University
2. South Africa, Cape Town Inter-university Institute for Data Intensive Astronomy
Hale, Catherine L.
1. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Hotan, Aidan W.
1. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Moss, Vanessa A.
1. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation
Whiting, Matthew T.
1. Australia, Canberra Commonwealth Scientific and Industrial Research Organisation

AFRICAN RESEARCH NEXUS

Unexpected circular radio objects at high Galactic latitude

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African Research Nexus

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AFRICAN RESEARCH NEXUS

Unexpected circular radio objects at high Galactic latitude

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Authors & Co-Authors

Disclaimer

African Research Nexus

Useful Links