2018MNRAS.474.5598R

Query : 2018MNRAS.474.5598R

2018MNRAS.474.5598R - Mon. Not. R. Astron. Soc., 474, 5598-5613 (2018/March-2)

AMI-LA observations of the SuperCLASS supercluster.

RISELEY C.J., GRAINGE K.J.B., PERROTT Y.C., SCAIFE A.M.M., BATTYE R.A., BESWICK R.J., BIRKINSHAW M., BROWN M.L., CASEY C.M., DEMETROULLAS C., HALES C.A., HARRISON I., HUNG C.-L., JACKSON N.J., MUXLOW T., WATSON B., CANTWELL T.M., CAREY S.H., ELWOOD P.J., HICKISH J., JIN T.Z., RAZAVI-GHODS N., SCOTT P.F. and TITTERINGTON D.J.

Abstract (from CDS):

We present a deep survey of the Super-Cluster Assisted Shear Survey (SuperCLASS) supercluster - a region of sky known to contain five Abell clusters at redshift z ∼ 0.2 - performed using the Arcminute Microkelvin Imager (AMI) Large Array (LA) at 15.5 GHz. Our survey covers an area of approximately 0.9 deg2. We achieve a nominal sensitivity of 32.0 µJy beam–1 towards the field centre, finding 80 sources above a 5σ threshold. We derive the radio colour-colour distribution for sources common to three surveys that cover the field and identify three sources with strongly curved spectra - a high-frequency-peaked source and two GHz-peaked-spectrum sources. The differential source count (i) agrees well with previous deep radio source counts, (ii) exhibits no evidence of an emerging population of star-forming galaxies, down to a limit of 0.24 mJy, and (iii) disagrees with some models of the 15 GHz source population. However, our source count is in agreement with recent work that provides an analytical correction to the source count from the Square Kilometre Array Design Study (SKADS) Simulated Sky, supporting the suggestion that this discrepancy is caused by an abundance of flat-spectrum galaxy cores as yet not included in source population models.

Abstract Copyright: © 2017 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): surveys - galaxies: clusters: general - radio continuum: general

Nomenclature: Table 2: [RGP2018] JHHMMSS+DDMMSS N=22.

Simbad objects: 34

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Number of rows : 34
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 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
2 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
3 6C 095456+654857 BLL 09 58 47.2451872176 +65 33 54.819354600     17.0 15.75   ~ 771 1
4 NVSS J102010+681231 Rad 10 20 10.17 +68 12 31.9           ~ 1 0
5 ACO 968 ClG 10 21 09 +68 15.9           ~ 15 0
6 ACO 981 ClG 10 24 19.1 +68 04 56           ~ 29 0
7 ACO 998 ClG 10 26 17 +67 57.7           ~ 17 0
8 [RGP2018] J102618+675145 Rad 10 26 18.830 +67 51 45.78           ~ 1 0
9 NVSS J102621+674146 Rad 10 26 21.43 +67 41 46.3           ~ 2 1
10 [RGP2018] J102624+675057 Rad 10 26 24.380 +67 50 57.96           ~ 1 0
11 NVSS J102627+681914 Rad 10 26 28.154 +68 19 13.54           ~ 4 1
12 [RGP2018] J102640+680737 Rad 10 26 40.120 +68 07 37.21           ~ 1 0
13 [RGP2018] J102640+680944 Rad 10 26 40.960 +68 08 49.44           ~ 1 0
14 [RGP2018] J102721+680609 Rad 10 27 21.340 +68 06 09.34           ~ 1 0
15 [RGP2018] J102728+682015 Rad 10 27 28.200 +68 20 15.05           ~ 1 0
16 ACO 1005 ClG 10 27 29 +68 13.7           ~ 14 0
17 ACO 1006 ClG 10 27 37 +67 02.7           ~ 14 0
18 NVSS J102741+680424 Rad 10 27 41.33 +68 04 24.9           ~ 1 0
19 NVSS J102750+674130 Rad 10 27 50.20 +67 41 30.2           ~ 3 1
20 [RGP2018] J102752+680356 Rad 10 27 52.580 +68 03 56.93           ~ 1 0
21 [RGP2018] J102801+675941 Rad 10 28 01.130 +67 59 41.69           ~ 1 0
22 NVSS J102806+675611 Rad 10 28 06.62 +67 56 11.9           ~ 1 0
23 NVSS J102809+674343 Rad 10 28 09.10 +67 43 43.6           ~ 2 0
24 NVSS J102813+680705 Rad 10 28 13.92 +68 07 05.1           ~ 1 0
25 NVSS J102827+674956 Rad 10 28 27.25 +67 49 56.0           ~ 1 0
26 [RGP2018] J102827+681316 Rad 10 28 27.280 +68 13 16.46           ~ 1 0
27 [RGP2018] J102843+674321 Rad 10 28 43.100 +67 43 21.11           ~ 1 0
28 [RGP2018] J102853+674559 Rad 10 28 53.660 +67 45 59.96           ~ 1 0
29 NVSS J102900+681522 Rad 10 29 00.93 +68 15 22.9           ~ 1 0
30 NVSS J102916+681320 Rad 10 29 16.98 +68 13 19.1           ~ 2 1
31 NVSS J102932+681027 Rad 10 29 32.19 +68 10 27.7           ~ 3 1
32 NAME Lockman Hole reg 10 45 00.0 +58 00 00           ~ 910 0
33 6C 104451+715930 Bla 10 48 27.61992778 +71 43 35.9384142     19.0 17.49   ~ 270 1
34 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2

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