2013ApJ...762...59W

Query : 2013ApJ...762...59W

2013ApJ...762...59W - Astrophys. J., 762, 59 (2013/January-1)

HerMES: candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths.

WARDLOW J.L., COORAY A., DE BERNARDIS F., AMBLARD A., ARUMUGAM V., AUSSEL H., BAKER A.J., BETHERMIN M., BLUNDELL R., BOCK J., BOSELLI A., BRIDGE C., BUAT V., BURGARELLA D., BUSSMANN R.S., CABRERA-LAVERS A., CALANOG J., CARPENTER J.M., CASEY C.M., CASTRO-RODRIGUEZ N., CAVA A., CHANIAL P., CHAPIN E., CHAPMAN S.C., CLEMENTS D.L., CONLEY A., COX P., DOWELL C.D., DYE S., EALES S., FARRAH D., FERRERO P., FRANCESCHINI A., FRAYER D.T., FRAZER C., FU H., GAVAZZI R., GLENN J., GONZALEZ SOLARES E.A., GRIFFIN M., GURWELL M.A., HARRIS A.I., HATZIMINAOGLOU E., HOPWOOD R., HYDE A., IBAR E., IVISON R.J., KIM S., LAGACHE G., LEVENSON L., MARCHETTI L., MARSDEN G., MARTINEZ-NAVAJAS P., NEGRELLO M., NERI R., NGUYEN H.T., O'HALLORAN B., OLIVER S.J., OMONT A., PAGE M.J., PANUZZO P., PAPAGEORGIOU A., PEARSON C.P., PEREZ-FOURNON I., POHLEN M., RIECHERS D., RIGOPOULOU D., ROSEBOOM I.G., ROWAN-ROBINSON M., SCHULZ B., SCOTT D., SCOVILLE N., SEYMOUR N., SHUPE D.L., SMITH A.J., STREBLYANSKA A., STROM A., SYMEONIDIS M., TRICHAS M., VACCARI M., VIEIRA J.D., VIERO M., WANG L., XU C.K., YAN L. and ZEMCOV M.

Abstract (from CDS):

We present a list of 13 candidate gravitationally lensed submillimeter galaxies (SMGs) from 95 deg2 of the Herschel Multi-tiered Extragalactic Survey, a surface density of 0.14±0.04 deg–2. The selected sources have 500 µm flux densities (S500) greater than 100 mJy. Gravitational lensing is confirmed by follow-up observations in 9 of the 13 systems (70%), and the lensing status of the four remaining sources is undetermined. We also present a supplementary sample of 29 (0.31±0.06 deg–2) gravitationally lensed SMG candidates with S500= 80-100 mJy, which are expected to contain a higher fraction of interlopers than the primary candidates. The number counts of the candidate lensed galaxies are consistent with a simple statistical model of the lensing rate, which uses a foreground matter distribution, the intrinsic SMG number counts, and an assumed SMG redshift distribution. The model predicts that 32%-74% of our S500 ≥ 100 mJy candidates are strongly gravitationally lensed (µ ≥ 2), with the brightest sources being the most robust; this is consistent with the observational data. Our statistical model also predicts that, on average, lensed galaxies with S500= 100 mJy are magnified by factors of ∼9, with apparently brighter galaxies having progressively higher average magnification, due to the shape of the intrinsic number counts. 65% of the sources are expected to have intrinsic 500 µm flux densities less than 30 mJy. Thus, samples of strongly gravitationally lensed SMGs, such as those presented here, probe below the nominal Herschel detection limit at 500 µm. They are good targets for the detailed study of the physical conditions in distant dusty, star-forming galaxies, due to the lensing magnification, which can lead to spatial resolutions of ∼0.''01 in the source plane.

Abstract Copyright: ∼

Journal keyword(s): gravitational lensing: strong - submillimeter: galaxies

Nomenclature: Tables 3-5: [WCD2013] 1HERMES S250 JHHMMSS.s+DDMMSS lens N=21, [WCD2013] 1HERMES S250 J022016.5-060143 lens N (Nos 1-2). Table 3: [WCD2013] JHHMMSS.ss+DDMMSS.s N=18. Table 4, col(1): [WCD2013] HBootesNN (Nos 01-05), [WCD2013] HECDFSNN (Nos 01-06), [WCD2013] HLockNN (Nos 01-11), [WCD2013] HXMMNN (Nos 01-13), [WCD2013] HADFSNN (Nos 01-02), [WCD2013] HEGSNN (No. 01), [WCD2013] HELAISSNN (No. 01), [WCD2013] HFLSNN (Nos 01-03).

Simbad objects: 58

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Number of rows : 58
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 QSO B0027-426 Bla 00 30 17.4927313896 -42 24 46.482230628   19.13 19.0 18.26 18.49 ~ 74 1
2 NAME SXDSF reg 02 18 00 -05 00.0           ~ 237 1
3 HSCS J021830.67-053131.8 gLe 02 18 30.67782 -05 31 31.8799           ~ 4 0
4 NAME HXMM02 rG 02 18 30.680 -05 31 31.80   25.86 20.639 24.80   ~ 19 0
5 [WCD2013] 1HERMES S250 J021918.4-031051 lens gLe 02 19 18.4 -03 10 51           ~ 2 0
6 1HERMES S250 J021918.4-031051 IR 02 19 18.417 -03 10 51.35           ~ 2 0
7 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1586 0
8 NAME HXMM01 G 02 20 16.5 -06 01 43           ~ 31 0
9 [WCD2013] 1HERMES S250 J022016.5-060143 lens 1 gLe 02 20 16.6 -06 01 43           ~ 2 0
10 [WCD2013] 1HERMES S250 J022016.5-060143 lens 2 gLe 02 20 16.6 -06 01 43           ~ 2 0
11 [WCD2013] 1HERMES S250 J022021.7-015328 lens gLe 02 20 21.7 -01 53 28           ~ 1 0
12 NAME HXMM04 IR 02 20 21.756 -01 53 30.92           ~ 3 0
13 [WCD2013] 1HERMES S250 J022029.2-064845 lens gLe 02 20 29.2 -06 48 45           ~ 1 0
14 NAME HXMM09 IR 02 20 29.2 -06 48 45           ~ 3 0
15 [WCD2013] 1HERMES S250 J022141.4-070321 lens gLe 02 21 41.4 -07 03 21           ~ 1 0
16 1HERMES S250 J022141.4-070321 IR 02 21 41.4 -07 03 21           ~ 1 0
17 [WCD2013] 1HERMES S250 J023146.5-035132 lens gLe 02 31 46.5 -03 51 32           ~ 1 0
18 1HERMES S250 J023146.5-035132 IR 02 31 46.5 -03 51 32           ~ 1 0
19 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
20 NAME HECDFS01 IR 03 31 41.6 -29 53 17           ~ 1 0
21 [WCD2013] 1HERMES S250 J033141.6-295317 lens gLe 03 31 41.6 -29 53 17           ~ 1 0
22 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 862 0
23 [CRR2012] HLS J091828.6+514223 G 09 18 28.60 +51 42 23.3           ~ 43 0
24 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
25 [WCD2013] 1HERMES S250 J103618.3+585456 lens gLe 10 36 18.3 +58 54 56           ~ 1 0
26 NAME HLock05 G 10 36 18.3 +58 54 56           ~ 1 0
27 [WCD2013] 1HERMES S250 J103826.6+581542 lens gLe 10 38 26.6 +58 15 42           ~ 2 0
28 NAME HLock04 IR 10 38 26.6 +58 15 42           ~ 3 0
29 NAME HLock11 IR 10 41 40.3 +57 08 57           ~ 1 0
30 [WCD2013] 1HERMES S250 J104140.3+570857 lens gLe 10 41 40.3 +57 08 57           ~ 1 0
31 NAME HLock06 rG 10 45 49.2 +57 45 11           ~ 3 0
32 [WCD2013] 1HERMES S250 J104549.2+574511 lens gLe 10 45 49.2 +57 45 11           ~ 1 0
33 1HERMES S250 J105311.0+564205 IR 10 53 11.0 +56 42 05           ~ 2 0
34 [WCD2013] 1HERMES S250 J105311.0+564205 lens gLe 10 53 11.0 +56 42 05           ~ 1 0
35 NAME HLock08 G 10 55 51.2 +59 28 45           ~ 2 0
36 [WCD2013] 1HERMES S250 J105551.2+592845 lens gLe 10 55 51.2 +59 28 45           ~ 1 0
37 [WCD2013] 1HERMES S250 J105712.2+565457 lens gLe 10 57 12.2 +56 54 58           ~ 2 0
38 NAME HLock03 G 10 57 12.262 +56 54 58.70           ~ 3 0
39 [GCC2011] G1 G 10 57 51.00 +57 30 25.8           ~ 5 0
40 NAME HLock01 G 10 57 51.1 +57 30 27           ~ 45 0
41 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
42 NAME HEGS01 IR 14 22 01.4 +53 32 13           ~ 1 0
43 [WCD2013] 1HERMES S250 J142201.4+533213 lens gLe 14 22 01.4 +53 32 13           ~ 1 0
44 [BBD2006] Foreground Galaxy G 14 28 24.0 +35 26 19           ~ 5 0
45 NAME HBootes03 AGN 14 28 24.074 +35 26 19.35           ~ 42 0
46 NVSS J142825+345547 rG 14 28 25.5 +34 55 47       20.25 19.41 ~ 8 1
47 NAME HBootes02 G 14 28 25.476 +34 55 47.10           ~ 5 0
48 NAME NOAO Deep Wide Field reg 14 32 05.75 +34 16 47.5           ~ 430 0
49 [WCD2013] 1HERMES S250 J143330.8+345439 lens gLe 14 33 30.8 +34 54 39           ~ 2 0
50 NAME HBootes01 G 14 33 30.826 +34 54 39.75           ~ 4 0
51 1HERMES S250 J144013.0+350825 IR 14 40 13.0 +35 08 25           ~ 1 0
52 [WCD2013] 1HERMES S250 J144013.0+350825 lens gLe 14 40 13.0 +35 08 25           ~ 1 0
53 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
54 1HERMES S250 J170607.7+590922 IR 17 06 07.7 +59 09 21           ~ 2 0
55 [WCD2013] 1HERMES S250 J170607.7+590921 lens gLe 17 06 07.7 +59 09 21           ~ 1 0
56 [WCD2013] 1HERMES S250 J171450.8+592633 lens gLe 17 14 50.8 +59 26 33           ~ 1 0
57 1HERMES S250 J171450.8+592633 IR 17 14 50.8 +59 26 33           ~ 2 0
58 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 245 0

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