2020MNRAS.494..271C

Query : 2020MNRAS.494..271C

2020MNRAS.494..271C - Mon. Not. R. Astron. Soc., 494, 271-292 (2020/May-1)

MNELLS: the MUSE nearby early-type galaxy lens locator survey.

COLLIER W.P., SMITH R.J. and LUCEY J.R.

Abstract (from CDS):

Low-redshift strong-lensing galaxies can provide robust measurements of the stellar mass-to-light ratios in early-type galaxies (ETGs), and hence constrain variations in the stellar initial mass function (IMF). At present, only a few such systems are known. Here, we report the first results from a blind search for gravitationally lensed emission-line sources behind 52 massive z < 0.07 ETGs with Multi-Unit Spectroscopic Explorer (MUSE) integral field spectroscopy. For 16 galaxies, new observations were acquired, whilst the other 36 were analysed from archival data. This project has previously yielded one confirmed galaxy-scale strong lens (J0403-0239) that we report in an earlier paper. J0403-0239 has since received follow-up observations, presented here, which indicate support for our earlier IMF results. Three cluster-scale, and hence dark-matter-dominated, lensing systems were also discovered (central galaxies of A4059, A2052, and AS555). For nine further galaxies, we detect a singly imaged but closely projected source within 6 arcsec (including one candidate with sources at three different redshifts); such cases can be exploited to derive upper limits on the IMF mass-excess factor, α. Combining the new lens and new upper limits, with the previously discovered systems, we infer an average <α> = 1.06 ± 0.08 (marginalized over the intrinsic scatter), which is inconsistent with a Salpeter-like IMF (α = 1.55) at the 6σ level. We test the detection threshold in these short-exposure MUSE observations with the injection and recovery of simulated sources, and predict that one in 25 observations is expected to yield a new strong-lens system. Our observational results are consistent with this expected yield.

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: elliptical and lenticular, cD - galaxies: stellar content

Simbad objects: 76

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Number of rows : 76
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 6dFGS gJ000311.2-544458 G 00 03 11.275 -54 44 58.82   14.44   13.20   ~ 7 0
2 UGC 579 BiC 00 56 16.101 -01 15 19.77   14.40 14.45     ~ 78 1
3 NGC 333 G 00 58 51.2987945616 -16 28 08.952040380   13.92       ~ 16 1
4 LSQ 13cmt SN* 01 02 41.95 -21 52 23.4           SNIa 5 0
5 ESO 541-13 BiC 01 02 42.026 -21 52 34.50   14.54 15.1 12.94   ~ 76 3
6 UGC 797 BiC 01 14 57.5962100328 +00 25 50.962053144   15.5 13.9     ~ 73 1
7 ACO 168 ClG 01 15 07.58 +00 19 10.8           ~ 361 2
8 NGC 547 AGN 01 26 00.6208982520 -01 20 42.432452268   13.16 13.34     ~ 349 4
9 ACO 194 ClG 01 26 01.3 -01 22 02           ~ 350 2
10 [SLC2015] SNL-2 gLS 01 41 42.32 -07 35 28.1           ~ 5 0
11 IC 158 G 01 45 53.5282992240 -06 56 08.309903784   15.66   14.35   ~ 16 0
12 NGC 777 Sy2 02 00 14.9065707744 +31 25 45.850721628 13.09 12.49 11.45     ~ 181 2
13 UGC 1525 BiC 02 02 17.310 -01 07 40.58   15.7       ~ 45 0
14 ACO 295 ClG 02 02 27 -01 04.6           ~ 65 0
15 ESO 197-18 EmG 02 02 30.8260924416 -50 55 53.816872188   13.47 12.6 12.10   ~ 32 0
16 ESO 544-31 G 02 15 04.5868321152 -20 46 03.743095620   15.32   13.85   ~ 27 0
17 SN 2006ot SN* 02 15 04.84 -20 45 58.2     17.4     SNIap 40 1
18 NGC 1060 GiG 02 43 15.045 +32 25 30.04 13.71 13.00 11.81     ~ 111 1
19 LEDA 127979 EmG 03 02 38.4228036336 -60 32 19.695364584   16.12       ~ 13 0
20 LEDA 3092574 G 04 03 50.249 -02 39 27.54   16.54   15.08   ~ 16 0
21 LSQ 13cwp SN* 04 03 50.66 -02 39 18.0           SNIa 8 0
22 NAME A496cD BiC 04 33 37.8465077496 -13 15 42.989961204   13.95 14.22     ~ 100 1
23 ACO 496 ClG 04 33 38.8 -13 15 59           ~ 694 2
24 SN 2012he SN* 05 00 50.04 -38 39 11.3           SNIa 8 1
25 MCG-06-12-002 G 05 00 50.6165703600 -38 39 16.536280788   16.13       ~ 10 0
26 ESO 253-27 BiC 05 48 08.4174224952 -47 24 17.318651940   14.93   12.99   ~ 16 0
27 ACO S 555 ClG 05 57 12 -37 28.7           ~ 15 0
28 ESO 364-18 BiC 05 57 12.559 -37 28 36.41   15.09   13.37   ~ 28 0
29 ESO 307-13 BiC 06 00 41.120 -40 02 39.82   14.66   12.93   ~ 44 1
30 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 305 0
31 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 209 0
32 ESO 161-8 BiC 06 27 36.2649635808 -54 26 57.926377896   15.02   12.72   ~ 33 0
33 Z 206-9 G 07 28 16.9764852192 +40 05 02.765373648   15.7       ~ 22 0
34 ESO 440-25 GiG 11 53 08.2379041872 -32 33 57.690884088   14.09       ~ 23 0
35 ESO 442-3 G 12 33 25.1168302464 -31 21 46.579216896   14.45   12.67   ~ 18 0
36 ESO 443-4 BiC 12 54 22.2141014424 -29 00 46.515592764   14.53   12.93 13.62 ~ 36 1
37 2MASX J12571157-1724344 LIN 12 57 11.580 -17 24 34.47   13.50   12.56   ~ 57 2
38 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 366 1
39 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 609 0
40 2MASX J13232900-3150392 GiC 13 23 29.0181767136 -31 50 39.709744008   15.58   13.86 13.43 ~ 29 0
41 ESO 444-25 BiC 13 24 06.7145431752 -31 40 11.559586800   14.31   12.66 13.17 ~ 42 0
42 2MASX J13242275-3142239 GiC 13 24 22.7593317360 -31 42 23.839721424   15.56   13.85 13.62 ~ 33 1
43 2MASX J13272961-3123237 GiC 13 27 29.6320274928 -31 23 24.218517660   15.55   13.69 13.30 ~ 39 0
44 6dFGS gJ132755.0-313219 GiC 13 27 54.9677532648 -31 32 18.771659844   15.81   13.87   ~ 32 0
45 ESO 444-46 BiC 13 27 56.884 -31 29 43.71   13.88 15 12.24 12.76 ~ 81 2
46 LEDA 47273 GiC 13 28 38.7140451336 -31 20 49.320836412   16.06   14.28 14.15 ~ 37 0
47 2MASX J13292810-3133048 GiC 13 29 28.1385439152 -31 33 04.578429276   10.83   14.03 13.73 ~ 32 0
48 ESO 444-60 GiC 13 30 32.7690647664 -31 34 33.439738908   15.44   13.95 13.75 ~ 26 0
49 2MASX J13312752-3149140 GiC 13 31 27.5211663696 -31 49 14.607116328   16.13   14.23   ~ 22 0
50 LEDA 99188 GiC 13 31 53.3687 -31 55 35.634   18.63   17.14   ~ 7 0
51 2MASX J13320334-3146430 BiC 13 32 03.1619332728 -31 46 48.527873652   15.65   13.99 13.43 ~ 34 0
52 ESO 444-72 BiC 13 33 34.739 -31 40 20.16   14.40   12.83 13.42 ~ 51 0
53 [SLC2015] SNL-0 gLS 13 43 33.19 -38 10 33.6           ~ 3 0
54 ESO 383-76 BiC 13 47 28.385 -32 51 54.02   13.02   11.53 12.50 ~ 61 1
55 ESO 384-7 G 13 52 25.2401398272 -34 56 00.559477968   14.72   13.11 13.64 ~ 21 0
56 MCG-02-36-002 BiC 14 01 41.8427019024 -11 36 24.845027796   15.00       ~ 111 2
57 NGC 5778 BiC 14 54 31.4984540808 +18 38 32.499862620   15.6       ~ 65 3
58 ACO 1991 ClG 14 54 41.53 +18 38 08.4           ~ 330 1
59 NGC 5872 EmG 15 10 55.6616419536 -11 28 48.398319948   14   12.20   ~ 24 0
60 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 730 1
61 UGC 9799 Sy2 15 16 44.4893939136 +07 01 17.825410740   15.19 14.17     ~ 446 3
62 SDSS J170234.61+372253.5 EmG 17 02 34.6049000760 +37 22 53.562277452           ~ 5 0
63 2MASX J18322937-6017262 G 18 32 29.3759548632 -60 17 26.035277352   15.99   13.97   ~ 14 0
64 NGC 6768 EmG 19 16 32.6167349088 -40 12 32.819491800   13.5       ~ 30 0
65 ESO 460-4 EmG 19 28 17.007 -29 31 44.26   13.86   11.79   ~ 26 0
66 ESO 187-26 BiC 20 51 56.9381236368 -52 37 46.981121304   14.42   12.72   ~ 35 0
67 [SLC2015] SNL-1 gLS 21 00 28.65 -42 25 23.5           ~ 6 0
68 NGC 7014 Sy1 21 07 52.1518322976 -47 10 44.295026412   12.93 12.25 11.56   ~ 100 1
69 IC 1386 rG 21 29 37.4218922256 -21 11 44.368239948   13.78   12.08   ~ 40 0
70 ACO S 1101 ClG 23 13 58.5 -42 43 39           ~ 258 1
71 ESO 291-9 BiC 23 13 58.6501915464 -42 43 39.089945856   14.68 14.6 14.537   ~ 52 3
72 IC 1479 GiG 23 18 46.4156930760 -10 23 57.183219744   14   13.28   ~ 34 0
73 IC 5338 BiC 23 36 30.6135053136 +21 08 50.535313476   15.5       ~ 89 1
74 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 247 0
75 ESO 349-10 QSO 23 57 00.7406438328 -34 45 32.994968292   13.89 13.26 12.19   ~ 127 2
76 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 380 1

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