2020MNRAS.493.4276B

Query : 2020MNRAS.493.4276B

2020MNRAS.493.4276B - Mon. Not. R. Astron. Soc., 493, 4276-4293 (2020/April-2)

A search for the lenses in the Herschel Bright Sources (HerBS) sample.

BAKX T.J.L.C., EALES S. and AMVROSIADIS A.

Abstract (from CDS):

Verifying that sub-mm galaxies are gravitationally lensed requires time-expensive observations with oversubscribed high-resolution observatories. Here, we aim to strengthen the evidence of gravitational lensing within the Herschel Bright Sources (HerBS) by cross-comparing their positions to optical (SDSS) and near-infrared (VIKING) surveys, in order to search for the foreground lensing galaxy candidates. Resolved observations of the brightest HerBS sources have already shown that most are lensed, and a galaxy evolution model predicts that ∼76 per cent of the total HerBS sources are lensed, although with the SDSS survey we are only able to identify the likely foreground lenses for 25 per cent of the sources. With the near-infrared VIKING survey, however, we are able to identify the likely foreground lenses for 57 per cent of the sources, and we estimate that 82 per cent of the HerBS sources have lenses on the VIKING images even if we cannot identify the lens in every case. We find that the angular offsets between lens and Herschel source are larger than that expected if the lensing is done by individual galaxies. We also find that the fraction of HerBS sources that are lensed falls with decreasing 500-micron flux density, which is expected from the galaxy evolution model. Finally, we apply our statistical VIKING cross-identification to the entire Herschel-ATLAS catalogue, where we also find that the number of lensed sources falls with decreasing 500-micron flux density.

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

Journal keyword(s): gravitational lensing: strong - galaxies: high redshift - submillimetre: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/493/4276): tablea1.dat>

Simbad objects: 100

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Number of rows : 100
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 NAME SGP reg 00 51 26.275 -27 07 41.70           ~ 606 0
2 H-ATLAS J083705.2+020033 G 08 37 05.3 +02 00 33           ~ 6 0
3 HerBS 108 LeG 08 38 17.4 -00 41 34           ~ 7 0
4 H-ATLAS J083859.3+021325 G 08 38 59.3 +02 13 26           ~ 5 0
5 HerBS 105 LeG 08 39 32.2 -01 17 58           ~ 8 0
6 H-ATLAS J083945.0+021021 G 08 39 45.1 +02 10 22           ~ 5 0
7 HerBS 188 G 08 42 59.9 +02 49 58           ~ 7 0
8 H-ATLAS J084933.4+021443 G 08 49 33.49 +02 14 44.4           ~ 38 0
9 H-ATLAS J084957.7+010713 G 08 49 57.7 +01 07 13           ~ 6 0
10 H-ATLAS J085308.5-005728 G 08 53 08.6 -00 57 28           ~ 5 0
11 H-ATLAS J085352.0-000804 G 08 53 52.1 -00 08 05           ~ 6 0
12 HerBS 194 LeG 08 55 21.18 -00 36 03.8           ~ 8 0
13 SDP 81 LeG 09 03 11.574 +00 39 06.55           ~ 106 0
14 H-ATLAS J090405.3-003331 G 09 04 05.3 -00 33 31           ~ 6 0
15 HerBS 183 LeG 09 04 53.2 +02 20 18           ~ 8 0
16 H-ATLAS J090613.7-010044 G 09 06 13.7 -01 00 44           ~ 7 0
17 HerBS 59 LeG 09 13 05.0 -00 53 43           ~ 40 0
18 H-ATLAS J091454.0-010358 G 09 14 54.1 -01 03 59           ~ 4 0
19 H-ATLAS J091809.5+001929 G 09 18 09.5 +00 19 29           ~ 3 0
20 NAME G09v1.326 G 09 18 40.8 +02 30 47           ~ 18 0
21 HerBS 91 LeG 09 21 35.6 +00 01 31           ~ 9 0
22 HerBS 185 LeG 09 24 08.8 -00 50 18           ~ 7 0
23 H-ATLAS J113243.0-005108 G 11 32 43.1 -00 51 08           ~ 10 0
24 NAME G12v2.43 G 11 35 26.3 -01 46 05           ~ 23 0
25 HerBS 96 LeG 11 38 03.5 -01 17 35           ~ 5 0
26 HerBS 100 LeG 11 38 33.3 +00 49 09           ~ 5 0
27 HerBS 119 G 11 38 33.9 -01 46 56           ~ 3 0
28 NAME G12.v2.30 LeG 11 46 37.9 -00 11 32           ~ 34 0
29 HerBS 85 G 11 47 52.7 -00 58 32           ~ 6 0
30 HerBS 53 LeG 11 51 12.3 -01 26 38           ~ 10 0
31 HerBS 177 LeG 11 54 33.65280 +00 50 42.3020           ~ 10 0
32 H-ATLAS J115521.0-021329 G 11 55 21.0 -02 13 30           ~ 7 0
33 H-ATLAS J115820.1-013752 G 11 58 20.2 -01 37 53           ~ 13 0
34 HerBS 61 G 12 01 27.6 -01 40 43           ~ 10 0
35 HerBS 50 G 12 03 19.1 -01 12 53           ~ 9 0
36 H-ATLAS J120600.7+003459 G 12 06 00.7 +00 35 00           ~ 5 0
37 HerBS 51 G 12 07 09.2 -01 47 02           ~ 7 0
38 H-ATLAS J121144.8+010638 G 12 11 44.9 +01 06 38           ~ 5 0
39 HerBS 48 LeG 12 13 01.5 -00 49 22           ~ 10 0
40 HerBS 116 LeG 12 13 48.1 +01 08 12           ~ 7 0
41 H-ATLAS J121416.3-013704 G 12 14 16.4 -01 37 04           ~ 5 0
42 HerBS 62 G 12 15 42.7 -00 52 20           ~ 7 0
43 HerBS 83 G 12 18 12.81793 +01 18 41.6700           ~ 7 0
44 H-ATLAS J121900.8+003326 G 12 19 00.9 +00 33 27           ~ 5 0
45 H-ATLAS J122034.2-003805 G 12 20 34.3 -00 38 06           ~ 5 0
46 H-ATLAS J122158.5+003326 G 12 21 58.6 +00 33 26           ~ 5 0
47 H-ATLAS J122407.4-003247 G 12 24 07.4 -00 32 47           ~ 4 0
48 HerBS 150 G 12 24 59.17727 -00 56 47.3930           ~ 8 0
49 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1274 0
50 H-ATLAS J140421.7-001217 G 14 04 21.8 -00 12 17           ~ 5 0
51 QSO B1407+022 BLL 14 10 04.65596596 +02 03 06.9124962   19.08 18.39 18.65   ~ 64 1
52 H-ATLAS J141117.8-010655 G 14 11 17.9 -01 06 56           ~ 6 0
53 NAME G15v2.235 LeG 14 13 51.9 -00 00 26           ~ 20 0
54 H-ATLAS J141810.0-003747 G 14 18 10.1 -00 37 47           ~ 5 0
55 SDSS J141827.58-001704.3 G 14 18 27.5799668592 -00 17 04.321696668   20.16       ~ 5 0
56 HerBS 110 LeG 14 18 33.00 +01 02 12.7           ~ 7 0
57 H-ATLAS J142140.3+000447 G 14 21 40.4 +00 04 48           ~ 6 0
58 NAME G15.v2.779 LeG 14 24 13.9 +02 23 04           ~ 59 0
59 H-ATLAS J142706.4+002258 G 14 27 06.5 +00 22 58           ~ 3 0
60 HerBS 202 G 14 33 28.4 +02 08 11           ~ 5 0
61 H-ATLAS J143352.4+020417 G 14 33 52.4 +02 04 17           ~ 6 0
62 HerBS 147 LeG 14 34 03.6 +00 02 34           ~ 6 0
63 HerBS 153 LeG 14 42 43.41 +01 55 04.4           ~ 7 0
64 HerBS 162 G 14 43 34.31 -00 30 34.3           ~ 7 0
65 H-ATLAS J144512.1-001510 G 14 45 12.1 -00 15 11           ~ 6 0
66 NAME G15v2.481 G 14 45 56.297 -00 48 51.70           ~ 9 0
67 H-ATLAS J144608.6+021927 G 14 46 08.6 +02 19 27           ~ 6 0
68 H-ATLAS J145040.5+003333 G 14 50 40.5 +00 33 34           ~ 5 0
69 H-ATLAS J145132.7+024101 G 14 51 32.8 +02 41 01           ~ 5 0
70 H-ATLAS J145135.2-011418 G 14 51 35.3 -01 14 18           ~ 6 0
71 SDSS J145337.15+000410.2 QSO 14 53 37.1575622136 +00 04 10.277689404           ~ 19 0
72 HerBS 195 LeG 14 57 54.2 +00 00 18           ~ 4 0
73 H-ATLAS J223615.2-343301 G 22 36 15.2 -34 33 01           ~ 5 0
74 HerBS 68 G 22 37 53.8 -30 58 28           ~ 9 0
75 HerBS 111 G 22 39 42.44 -33 33 04.4           ~ 7 0
76 HerBS 148 G 22 40 26.54 -31 51 54.8           ~ 4 0
77 H-ATLAS J224027.8-343135 G 22 40 27.8 -34 31 35           ~ 3 0
78 H-ATLAS J224207.2-324159 G 22 42 07.2 -32 41 59           ~ 6 0
79 H-ATLAS J224400.8-340031 G 22 44 00.8 -34 00 31           ~ 3 0
80 GAMA J224759.75-310135.0 G 22 47 59.74 -31 01 35.2           ~ 5 0
81 HerBS 33 G 22 48 05.3 -33 58 20           ~ 6 0
82 H-ATLAS J224920.6-332940 G 22 49 20.6 -33 29 40           ~ 6 0
83 H-ATLAS J225045.5-304719 G 22 50 45.5 -30 47 19           ~ 5 0
84 HerBS 47 G 22 52 50.7 -31 36 57           ~ 9 0
85 HerBS 103 G 22 53 24.25 -32 35 04.2           ~ 6 0
86 H-ATLAS J225339.1-325550 G 22 53 39.1 -32 55 50           ~ 4 0
87 HerBS 189 G 22 56 00.69 -31 32 31.6           ~ 6 0
88 H-ATLAS J225611.7-325653 G 22 56 11.7 -32 56 53           ~ 5 0
89 H-ATLAS J225744.6-324231 G 22 57 44.6 -32 42 31           ~ 6 0
90 HerBS 26 G 22 58 44.7 -29 51 24           ~ 6 0
91 H-ATLAS J230002.6-315005 G 23 00 02.6 -31 50 05           ~ 5 0
92 H-ATLAS J230538.5-312204 G 23 05 38.5 -31 22 04           ~ 7 0
93 H-ATLAS J230546.2-331038 G 23 05 46.2 -33 10 38           ~ 9 0
94 HerBS 28 G 23 08 15.5 -34 38 01           ~ 10 0
95 H-ATLAS J231205.2-295027 G 23 12 05.2 -29 50 27           ~ 6 0
96 HerBS 146 G 23 22 10.90 -33 37 49.5           ~ 5 0
97 HerBS 18 G 23 24 19.8 -32 39 26           ~ 10 0
98 HerBS 17 G 23 25 31.3 -30 22 35           ~ 7 0
99 HerBS 37 G 23 26 23.0 -34 26 42           ~ 10 0
100 HerBS 39 G 23 29 00.6 -32 17 44           ~ 10 0

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