Unexpected circular radio objects at high Galactic latitude

Journal
Date Issued
2021
Author(s)
Norris, Ray P.
•
Intema, Huib T.
•
Kapińska, Anna D.
•
Koribalski, Bärbel S.
•
Lenc, Emil
•
Rudnick, L.
•
Alsaberi, Rami Z.E.
•
Anderson, Craig
•
Anderson, G. E.
•
Crawford, E.
•
Crocker, Roland
•
English, Jayanne
•
Filipović, Miroslav D.
•
Galvin, Tim J.
•
Hopkins, Andrew M.
•
Hurley-Walker, Natasha
•
Inoue, Susumu
•
Luken, Kieran
•
Macgregor, Peter J.
•
Manojlović, Pero
•
Marvil, Josh
•
O'Brien, Andrew N.
•
Park, Laurence
•
Raja, Wasim
•
Shobhana, Devika
•
•
Collier, Jordan D.
•
Hale, Catherine
•
Hotan, Aidan
•
Moss, Vanessa
•
Whiting, Matthew
DOI
Abstract
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.
Volume
38
Uri
Url
Issn Identifier
1448-6083
Rights
open.access
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