2018MNRAS.480.5017A

Query : 2018MNRAS.480.5017A

2018MNRAS.480.5017A - Mon. Not. R. Astron. Soc., 480, 5017-5028 (2018/November-2)

The STRong lensing Insights into the Dark Energy Survey (STRIDES) 2016 follow-up campaign - II. New quasar lenses from double component fitting.

ANGUITA T., SCHECHTER P.L., KUROPATKIN N., MORGAN N.D., OSTROVSKI F., ABRAMSON L.E., AGNELLO A., APOSTOLOVSKI Y., FASSNACHT C.D., HSUEH J.W., MOTTA V., ROJAS K., RUSU C.E., TREU T., WILLIAMS P., AUGER M., BUCKLEY-GEER E., LIN H., McMAHON R., ABBOTT T.M.C., ALLAM S., ANNIS J., BERNSTEIN R.A., BERTIN E., BROOKS D., BURKE D.L., CARNERO ROSELL A., CARRASCO-KIND M., CARRETERO J., CUNHA C.E., D'ANDREA C.B., DE VICENTE J., DEPOY D.L., DESAI S., DIEHL H.T., DOEL P., FLAUGHER B., GARCIA-BELLIDO J., GERDES D.W., GRUEN D., GRUENDL R.A., GSCHWEND J., HARTLEY W.G., HOLLOWOOD D.L., HONSCHEID K., JAMES D.J., KUEHN K., LIMA M., MAIA M.A.G., MIQUEL R., PLAZAS A.A., SANCHEZ E., SCARPINE V., SMITH M., SOARES-SANTOS M., SOBREIRA F., SUCHYTA E., TARLE G. and WALKER A.R.

Abstract (from CDS):

We report upon the follow-up of 34 candidate lensed quasars found in the Dark Energy Survey using NTT EFOSC, Magellan-IMACS, KECK-ESI, and SOAR-SAMI. These candidates were selected by a combination of double component fitting, morphological assessment, and colour analysis. Most systems followed up are indeed composed of at least one quasar image and 13 with two or more quasar images: two lenses, four projected binaries, and seven nearly identical quasar pairs (NIQs). The two systems confirmed as genuine gravitationally lensed quasars are one quadruple at zs = 1.713 and one double at zs = 1.515. Lens modelling of these two systems reveals that both systems require very little contribution from the environment to reproduce the image configuration. Nevertheless, small flux anomalies can be observed in one of the images of the quad. Further observations of nine inconclusive systems (including seven NIQs) will allow to confirm (or not) their gravitational lens nature.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): gravitational lensing: strong - techniques: image processing - surveys - quasars: general

Nomenclature: Table 2: [ASK2018] DES JHHMM+DDMM N=34, [ASK2018] DES JHHMM+DDMM source N=22, [ASK2018] DES JHHMM+DDMM source N N=8. Figs 1-8, Tables 3-6: [ASK2018] DES JHHMM+DDMM A N=39.

Simbad objects: 72

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Number of rows : 72
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 [ASK2018] DES J0043-4110 source QSO 00 43 06.87 -41 10 32.6           ~ 1 0
2 DES J004306.87-411032.6 LS? 00 43 06.9000138816 -41 10 31.788963372           ~ 1 0
3 DES J005301.91+002042.9 LS? 00 53 01.91 +00 20 42.9           ~ 1 0
4 [ASK2018] DES J0053+0020 source QSO 00 53 01.91 +00 20 42.9           ~ 1 0
5 [ASK2018] DES J0058-6120 source Q? 00 58 17.07 -61 20 04.6           ~ 1 0
6 DES J005817.07-612004.6 LS? 00 58 17.1074521656 -61 20 04.554143376           ~ 1 0
7 DES J012006.38-435440.8 LS? 01 20 06.378 -43 54 40.61           ~ 3 0
8 [ASK2018] DES J0120-4354 source Q? 01 20 06.38 -43 54 40.8           ~ 1 0
9 DES J013733.00-022242.6 LS? 01 37 33.00 -02 22 42.6           ~ 1 0
10 DES J021524.22-472845.2 LS? 02 15 24.22 -47 28 45.2           ~ 2 0
11 [ASK2018] DES J0215-4728 source 1 QSO 02 15 24.22 -47 28 45.2           ~ 1 0
12 [ASK2018] DES J0215-4728 source 2 QSO 02 15 24.22 -47 28 45.2           ~ 1 0
13 DES J023004.58-070445.9 LS? 02 30 04.58 -07 04 45.9           ~ 1 0
14 [ASK2018] DES J0230-0704 source QSO 02 30 04.58 -07 04 45.9           ~ 1 0
15 DES J024018.40-020850.2 LS? 02 40 18.40 -02 08 50.2           ~ 1 0
16 [ASK2018] DES J0240-0208 source 1 QSO 02 40 18.4028375181 -02 08 50.067235685           ~ 2 0
17 [ASK2018] DES J0240-0208 source 2 QSO 02 40 18.4380934580 -02 08 50.853545863           ~ 2 0
18 DES J025357.76-050454.7 LS? 02 53 57.7679441352 -05 04 54.505650900           ~ 1 0
19 DES J032559.42-451820.9 LS? 03 25 59.42 -45 18 20.9           ~ 1 0
20 [ASK2018] DES J0325-4518 source QSO 03 25 59.42 -45 18 20.9           ~ 1 0
21 DES J040235.79-152328.4 LS? 04 02 35.79 -15 23 28.4           ~ 1 0
22 [ASK2018] DES J0405-3308 A LeQ 04 05 59.71 -33 08 50.7           ~ 5 0
23 [ASK2018] DES J0405-3308 D LeQ 04 05 59.73 -33 08 51.7           ~ 5 0
24 [ASK2018] DES J0405-3308 G G 04 05 59.76 -33 08 51.2           ~ 3 0
25 [ASK2018] DES J0405-3308 C LeQ 04 05 59.78 -33 08 50.6           ~ 5 0
26 [ASK2018] DES J0405-3308 source LeQ 04 05 59.80 -33 08 51.4           ~ 1 0
27 DES J040559.80-330851.4 gLS 04 05 59.80 -33 08 51.4           ~ 18 0
28 [ASK2018] DES J0405-3308 B LeQ 04 05 59.81 -33 08 51.4           ~ 5 0
29 [ASK2018] DES J0407-5006 A LeQ 04 07 10.22 -50 06 01.0           ~ 1 0
30 [ASK2018] DES J0407-5006 source LeQ 04 07 10.22 -50 06 00.9           ~ 1 0
31 DES J040710.22-500600.9 gLS 04 07 10.22 -50 06 00.9           ~ 3 0
32 [ASK2018] DES J0407-5006 G G 04 07 10.28 -50 06 02.0           ~ 2 0
33 [ASK2018] DES J0407-5006 B LeQ 04 07 10.31 -50 06 02.4           ~ 1 0
34 DES J042553.23-453935.3 LS? 04 25 53.23 -45 39 35.3           ~ 1 0
35 [ASK2018] DES J0425-4539 source 2 QSO 04 25 53.23 -45 39 35.3           ~ 1 0
36 [ASK2018] DES J0425-4539 source 1 QSO 04 25 53.23 -45 39 35.3           ~ 1 0
37 [ASK2018] DES J0438-3416 source QSO 04 38 57.14 -34 16 09.9           ~ 1 0
38 DES J043857.14-341609.9 LS? 04 38 57.1429844856 -34 16 09.913211904           ~ 1 0
39 DES J044042.84-200818.8 LS? 04 40 42.84 -20 08 18.8           ~ 1 0
40 DES J044316.64-330845.1 LS? 04 43 16.6481612496 -33 08 45.057897492           ~ 1 0
41 DES J044402.20-371831.7 LS? 04 44 02.1984118584 -37 18 31.613886360           ~ 1 0
42 [ASK2018] DES J0444-3718 source QSO 04 44 02.20 -37 18 31.7           ~ 1 0
43 DES J045137.23-341006.0 LS? 04 51 37.2556701864 -34 10 06.147581160           ~ 1 0
44 DES J050912.77-235049.3 LS? 05 09 12.77 -23 50 49.3           ~ 1 0
45 [ASK2018] DES J0509-2350 source QSO 05 09 12.77 -23 50 49.3           ~ 1 0
46 DES J051656.90-602031.4 LS? 05 16 56.90 -60 20 31.4           ~ 1 0
47 [ASK2018] DES J0516-6020 source QSO 05 16 56.90 -60 20 31.4           ~ 1 0
48 [ASK2018] DES J0544-5922 source Q? 05 44 30.63 -59 22 38.7           ~ 1 0
49 DES J054430.63-592238.7 LS? 05 44 30.63 -59 22 38.7           ~ 1 0
50 DES J060003.77-284758.5 LS? 06 00 03.7722945144 -28 47 58.374488472           ~ 1 0
51 DES J204726.90-480147.9 LS? 20 47 26.8970352888 -48 01 48.032481360   18.4   18.1   ~ 3 0
52 [ASK2018] DES J2103-5800 source QSO 21 03 58.13 -58 00 49.0           ~ 1 0
53 DES J210358.13-580049.0 LS? 21 03 58.13 -58 00 49.0           ~ 1 0
54 DES J214148.85-462945.7 LS? 21 41 48.848 -46 29 46.03           ~ 2 0
55 [ASK2018] DES J2141-4629 source Q? 21 41 48.85 -46 29 45.7           ~ 1 0
56 DES J215426.50-441044.4 LS? 21 54 26.50 -44 10 44.4           ~ 1 0
57 [ASK2018] DES J2154-4410 source QSO 21 54 26.50 -44 10 44.4           ~ 1 0
58 [ASK2018] DES J2200-4719 source Q? 22 00 39.00 -47 19 00.0           ~ 1 0
59 DES J220039.00-471900.0 LS? 22 00 39.0122047416 -47 19 00.128502624           ~ 1 0
60 DES J221710.62+013808.3 LS? 22 17 10.62 +01 38 08.3           ~ 1 0
61 SDSS J221710.61+013808.1 QSO 22 17 10.62 +01 38 08.3           ~ 2 0
62 [ASK2018] DES J2250-6047 source Q? 22 50 07.92 -60 47 23.1           ~ 1 0
63 DES J225007.92-604723.1 LS? 22 50 07.92 -60 47 23.1           ~ 1 0
64 [ASK2018] DES J2303-4844 source 2 QSO 23 03 29.90 -48 44 30.5           ~ 1 0
65 DES J230329.90-484430.5 LS? 23 03 29.90 -48 44 30.5           ~ 1 0
66 [ASK2018] DES J2303-4844 source 1 QSO 23 03 29.90 -48 44 30.5           ~ 1 0
67 DES J230602.30-565755.5 LS? 23 06 02.30 -56 57 55.5           ~ 1 0
68 [ASK2018] DES J2306-5657 source QSO 23 06 02.30 -56 57 55.5           ~ 1 0
69 DES J232625.74-480548.5 LS? 23 26 25.74 -48 05 48.5           ~ 1 0
70 [ASK2018] DES J2326-4805 source QSO 23 26 25.74 -48 05 48.5           ~ 1 0
71 DES J233713.66+005610.8 LS? 23 37 13.66 +00 56 10.8           ~ 1 0
72 [VV2006] J233713.7+005611 QSO 23 37 13.6751 +00 56 11.104   18.6 19.39 18.3   ~ 32 0

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