2021PASA...38....3N

Query : 2021PASA...38....3N

2021PASA...38....3N - Publications - Astron. Soc. Australia, 38, 3 (2021)

Unexpected circular radio objects at high Galactic latitude.

NORRIS R.P., INTEMA H.T., KAPINSKA A.D., KORIBALSKI B.S., LENC E., RUDNICK L., ALSABERI R.Z.E., ANDERSON C., ANDERSON G.E., CRAWFORD E., CROCKER R., ENGLISH J., FILIPOVIC M.D., GALVIN T.J., HOPKINS A.M., HURLEY-WALKER N., INOUE S., LUKEN K., MACGREGOR P.J., MANOJLOVIC P., MARVIL J., O'BRIEN A., PARK L., RAJA W., SHOBHANA D., VENTURI T., COLLIER J.D., HALE C., HOTAN A., MOSS V. and WHITING M.

Abstract (from CDS):

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.

Abstract Copyright: © The Author(s), 2021. Published by Cambridge University Press on behalf of the Astronomical Society of Australia

Journal keyword(s): Extragalactic radio sources

Simbad objects: 17

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Number of rows : 17
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MCG-06-02-022a EmG 00 37 41.1133192392 -33 42 58.515101748   19.26   18.52   ~ 314 1
2 NGC 1265 rG 03 18 15.674 +41 51 27.94   14.7       ~ 386 2
3 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
4 NVSS J155524+272629 rG 15 55 24.63242 +27 26 34.3850           ~ 5 0
5 ORC J1555+2726 Rad 15 55 24.65 +27 26 33.8           ~ 17 1
6 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
7 QSO B1830-211 Bla 18 33 39.9399138048 -21 03 39.368838780     18.70 21   ~ 724 1
8 NGC 6935 EmG 20 38 20.1988150992 -52 06 37.891816812   12.77 12.10 11.57   ~ 72 0
9 ORC J2058-5736a Rad 20 58 42.80 -57 36 58.0           ~ 10 0
10 WISE J205847.91-573653.8 G 20 58 47.90119 -57 36 53.7425           ~ 1 0
11 DES J205848.79-573612.0 rG 20 58 48.7926829417 -57 36 12.147116007           ~ 3 0
12 2MASS J20585169-5735542 * 20 58 51.6547525310 -57 35 54.131608693           ~ 1 0
13 ORC J2058-5736b Rad 20 58 56.30 -57 36 55.0           ~ 9 0
14 DES J210257.79-620045.9 G 21 02 57.86425 -62 00 46.0864           ~ 3 0
15 WISEA J210258.15-620014.4 G 21 02 58.15 -62 00 14.4           ~ 4 0
16 ORC J2103-6200 Rad 21 02 58.30 -62 00 16.0           ~ 17 0
17 WISE J210308.23-620055.0 G 21 03 08.23 -62 00 55.0           ~ 1 0

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