2004ApJ...602..545P

Query : 2004ApJ...602..545P

2004ApJ...602..545P - Astrophys. J., 602, 545-554 (2004/February-3)

The distribution of Lyα-emitting galaxies at z=2.38.

PALUNAS P., TEPLITZ H.I., FRANCIS P.J., WILLIGER G.M. and WOODGATE B.E.

Abstract (from CDS):

We present the detection of 34 Lyα emission-line galaxy candidates in a 80x80x60 comoving Mpc region surrounding the known z=2.38 galaxy cluster J2143-4423. The space density of Lyα emitters is comparable to that found by Steidel et al. when targeting a cluster at redshift 3.09, which is a factor of 5.8±2.5 greater than that found by field samples at similar redshifts. The distribution of these galaxy candidates contains several 5-10 Mpc scale voids. We compare our observations with mock catalogs derived from the VIRGO consortium ΛCDM n-body simulations. Fewer than 1% of the mock catalogs contain voids as large as we observe. Our observations thus tentatively suggest that the galaxy distribution at redshift 2.38 contains larger voids than predicted by current models. Three of the candidate galaxies and one previously discovered galaxy have the large luminosities and extended morphologies of ``Lyα blobs.''

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Galaxies: Evolution - Galaxies: Fundamental Parameters

Nomenclature: Table 2: [FWW96] AN (Nos B5-B7) added. Table 2: [PTF2004] JHHMMSS.ss+DDMMSS.s N=37. Table 3: [PTF2004] JHHMMSS.ss+DDMMSS.ss N=8.

Simbad objects: 50

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Number of rows : 50
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 [PTF2004] J214019.98-441948.2 EmG 21 40 19.98 -44 19 48.2           ~ 2 0
2 [PTF2004] J214031.00-443604.5 EmG 21 40 31.00 -44 36 04.5           ~ 1 0
3 [PTF2004] J214033.10-443610.8 EmG 21 40 33.10 -44 36 10.8           ~ 1 0
4 [PTF2004] J214036.77-442028.8 EmG 21 40 36.77 -44 20 28.8           ~ 1 0
5 [PTF2004] J214048.09-443101.7 EmG 21 40 48.09 -44 31 01.7           ~ 2 0
6 [PTF2004] J214048.97-440123.6 EmG 21 40 48.97 -44 01 23.6           ~ 1 0
7 [FPT2004] J214052.48-443621.5 QSO 21 40 52.46 -44 36 21.4   19.96       ~ 3 0
8 [PTF2004] J214058.22-440022.0 EmG 21 40 58.22 -44 00 22.0           ~ 2 0
9 [PTF2004] J214102.90-440155.9 EmG 21 41 02.90 -44 01 55.9           ~ 2 0
10 [PTF2004] J214107.38-443811.7 EmG 21 41 07.38 -44 38 11.7           ~ 1 0
11 ACO 3800 ClG 21 41 30.9 -44 21 40           ~ 4 0
12 [PTF2004] J214144.41-443706.7 EmG 21 41 44.41 -44 37 06.7           ~ 2 0
13 [PTF2004] J214153.55-443818.3 EmG 21 41 53.55 -44 38 18.3           ~ 1 0
14 [VV2000] J214154.7-441835 QSO 21 41 54.7 -44 18 35           ~ 6 0
15 LBQS 2138-4427 QSO 21 41 59.5007724552 -44 13 25.930211268   19.17 18.20     ~ 70 1
16 [PTF2004] J214206.03-443447.9 G 21 42 06.03 -44 34 47.9           ~ 6 0
17 [PTF2004] J214214.28-443215.8 EmG 21 42 14.28 -44 32 15.8           ~ 2 0
18 [PTF2004] J214227.56-442030.1 PaG 21 42 27.51 -44 20 29.5           ~ 16 2
19 [PTF2004] J214228.54-443238.5 EmG 21 42 28.54 -44 32 38.5           ~ 2 0
20 [PTF2004] J214229.73-442102.8 G 21 42 29.69 -44 21 01.4           ~ 7 0
21 [PTF2004] J214232.20-442018.6 G 21 42 32.14 -44 20 17.2           ~ 5 0
22 [PTF2004] J214234.88-442706.2 G 21 42 34.88 -44 27 06.2           ~ 6 0
23 [PTF2004] J214235.12-443230.36 QSO 21 42 35.12 -44 32 30.4   22.34       ~ 2 0
24 [PTF2004] J214242.63-443009.0 EmG 21 42 42.63 -44 30 09.0           ~ 2 0
25 [FPT2004] J214243.51-441425.5 QSO 21 42 43.5036420120 -44 14 25.410670152   20.14       ~ 2 0
26 [PTF2004] J214254.07-441439.7 EmG 21 42 54.07 -44 14 39.7           ~ 1 0
27 [PTF2004] J214256.34-443756.8 EmG 21 42 56.34 -44 37 56.8           ~ 3 0
28 ClG J2143-4423 ClG 21 43 -44.4           ~ 18 0
29 [PTF2004] J214300.09-441921.7 EmG 21 43 00.09 -44 19 21.7           ~ 2 0
30 [PTF2004] J214303.57-442344.2 G 21 43 03.57 -44 23 44.2           ~ 8 0
31 [PTF2004] J214303.80-443144.9 EmG 21 43 03.80 -44 31 44.9           ~ 2 0
32 [PTF2004] J214305.90-442721.0 EmG 21 43 05.90 -44 27 21.0   23.16       ~ 2 0
33 [PTF2004] J214306.42-442700.6 EmG 21 43 06.42 -44 27 00.6           ~ 2 0
34 [PTF2004] J214311.48-435901.0 EmG 21 43 11.48 -43 59 01.0           ~ 2 0
35 [PTF2004] J214316.44-441651.54 QSO 21 43 16.44 -44 16 51.5   21.71       ~ 2 0
36 [FPT2004] J214320.40-442000.5 QSO 21 43 20.3879600496 -44 20 00.437481852   21.05       ~ 2 0
37 [PTF2004] J214322.22-441306.5 EmG 21 43 22.22 -44 13 06.5           ~ 2 0
38 [PTF2004] J214322.53-443149.18 QSO 21 43 22.53 -44 31 49.2   20.86       ~ 2 0
39 [PTF2004] J214323.80-444136.4 EmG 21 43 23.80 -44 41 36.4           ~ 2 0
40 [PTF2004] J214324.06-442759.9 EmG 21 43 24.06 -44 27 59.9           ~ 2 0
41 [PTF2004] J214326.25-442603.44 G 21 43 26.25 -44 26 03.4           ~ 1 0
42 [PTF2004] J214337.41-441753.4 EmG 21 43 37.41 -44 17 53.4           ~ 2 0
43 [PTF2004] J214337.48-442352.8 EmG 21 43 37.48 -44 23 52.8           ~ 2 0
44 [PTF2004] J214344.92-440546.3 EmG 21 43 44.92 -44 05 46.3           ~ 2 0
45 [PTF2004] J214348.30-440826.9 EmG 21 43 48.30 -44 08 26.9           ~ 2 0
46 [PTF2004] J214412.15-440546.6 EmG 21 44 12.15 -44 05 46.6           ~ 2 0
47 [PTF2004] J214412.97-435756.7 EmG 21 44 12.97 -43 57 56.7           ~ 3 0
48 NAME SMM J221726+0013 EmO 22 17 25.97 +00 12 38.9   27   24.49   ~ 112 0
49 CXOU J221739.1+001331 AGN 22 17 39.0840 +00 13 29.784   25.999 24.878 25.086   ~ 64 1
50 [PTF2004] J214147.66-442121.9 EmG ~ ~           ~ 1 0

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