2020MNRAS.499...68T

Query : 2020MNRAS.499...68T

2020MNRAS.499...68T - Mon. Not. R. Astron. Soc., 499, 68-76 (2020/November-3)

Radio Galaxy Zoo: new giant radio galaxies in the RGZ DR1 catalogue.

TANG H., SCAIFE A.M.M., WONG O.I., KAPINSKA A.D., RUDNICK L., SHABALA S.S., SEYMOUR N. and NORRIS R.P.

Abstract (from CDS):

In this paper, we present the identification of five previously unknown giant radio galaxies (GRGs) using Data Release 1 of the Radio Galaxy Zoo citizen science project and a selection method appropriate to the training and validation of deep learning algorithms for new radio surveys. We associate one of these new GRGs with the brightest cluster galaxy (BCG) in the galaxy cluster GMBCG J251.67741+36.45295 and use literature data to identify a further 13 previously known GRGs as BCG candidates, increasing the number of known BCG GRGs by > 60 per cent. By examining local galaxy number densities for the number of all known BCG GRGs, we suggest that the existence of this growing number implies that GRGs are able to reside in the centres of rich (∼1014 M☉) galaxy clusters and challenges the hypothesis that GRGs grow to such sizes only in locally underdense environments.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: data analysis - catalogues - radio continuum: galaxies

Simbad objects: 30

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Number of rows : 30
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 LEDA 1726121 rG 01 15 57.2382928824 +25 07 20.303233284           ~ 4 0
2 SDSS J075108.79+423124.2 Sy2 07 51 08.7980036328 +42 31 24.192980292   20.38 19.33     ~ 9 0
3 SDSSCGB 4016 CGG 09 02 38.2 +17 37 34           ~ 2 0
4 2MASX J09023843+1737515 BLL 09 02 38.4250944360 +17 37 51.573508428           ~ 11 0
5 NVSS J092600+651922 rG 09 26 00.8291542824 +65 19 22.723302180           ~ 8 0
6 [KJB2018] GRS J0929+4146 rG 09 29 10.660 +41 46 45.59           ~ 24 1
7 B2 0938+31 A rG 09 40 59.773 +31 26 29.12           ~ 3 0
8 FIRST J094103.6+312617 rG 09 41 03.62520 +31 26 18.7476           ~ 2 0
9 WiggleZ Y11J105421163+02275503 rG 10 54 21.1632 +02 27 55.033           ~ 3 0
10 ICRF J110845.4+020240 BLL 11 08 45.48841189 +02 02 40.9040661   19.45 18.61 16.558   ~ 68 1
11 [KMA2007] 170.36020+53.74911 ClG 11 21 26.45 +53 44 56.8           ~ 3 0
12 SDSS J123526.66+212034.7 rG 12 35 26.664 +21 20 34.75           ~ 5 0
13 SDSS J133118.01+235700.4 G 13 31 18.00726 +23 57 00.4846           ~ 1 0
14 GB6 B1328+2412 Rad 13 31 21.844 +23 57 37.11           ~ 2 0
15 FIRST J140043.4+301918 rG 14 00 43.4331694248 +30 19 18.618015432           ~ 38 1
16 SDSS J140224.25+244224.3 G 14 02 24.25031 +24 42 24.3740           ~ 1 0
17 SDSS J140224.31+244226.8 G 14 02 24.31946 +24 42 26.8600           ~ 1 0
18 SDSS J140225.03+244218.1 G 14 02 25.03386 +24 42 18.1624           ~ 1 0
19 B2.2 1400+24 Rad 14 02 25.87 +24 41 53.0           ~ 1 0
20 2MASX J14183761+3746243 Sy1 14 18 37.6584749304 +37 46 24.529746288     14.50     ~ 18 0
21 [WHL2009] J141837.7+374624 ClG 14 18 49.6 +37 47 05           ~ 2 0
22 GB6 B1419+1028 Rad 14 21 42.0 +10 16 17           ~ 1 0
23 SDSS J142142.68+101626.2 G 14 21 42.68391 +10 16 26.2808           ~ 1 0
24 4C 33.33 rG 14 53 02.8682754912 +33 08 42.450468612           ~ 50 3
25 ClG J1511+0751 ClG 15 11 00.0 +07 51 50           ~ 12 0
26 SDSS J151100.03+075150.2 rG 15 11 00.029 +07 51 50.24           ~ 9 0
27 4C 51.31B rG 15 21 14.5563210000 +51 05 00.908743524   21.3       ~ 15 0
28 GMBCG 251.67741+36.45295 ClG 16 46 42.58 +36 27 10.6           ~ 1 0
29 FIRST J164642.6+362710 rG 16 46 42.583 +36 27 10.71           ~ 5 0
30 SDSS J230632.17-093020.5 rG 23 06 32.1753399312 -09 30 20.467647144           ~ 7 0

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