2012MNRAS.422.2980S

Query : 2012MNRAS.422.2980S

2012MNRAS.422.2980S - Mon. Not. R. Astron. Soc., 422, 2980-2991 (2012/June-1)

Tunable filter imaging of high-redshift quasar fields.

SWINBANK J., BAKER J., BARR J., HOOK I. and BLAND-HAWTHORN J.

Abstract (from CDS):

We have used the Taurus Tunable Filter to search for Lyα emitters in the fields of three high-redshift quasars: two at z∼ 2.2 (MRC B1256-243 and MRC B2158-206) and one at z∼ 4.5 (BR B0019-1522). Our observations had a field of view of around 35 arcmin2, and reached AB magnitudes of ∼21 (MRC B1256-243), ∼22 (MRC B2158-206) and ∼22.6 (BR B0019-1522) depending on wavelength. We have identified candidate emission-line galaxies in all the three fields, with the higher redshift field being by far the richest. By combining our observations with simulations of the instrumental response, we estimate the total density of emission-line galaxies in each field. 17 candidate emission-line galaxies were found within 1.5 Mpc of BR B0019-1522, a number density of (4.9±1.2) {x} 10–3/Mpc3, suggesting a significant galaxy overdensity at z∼ 4.5.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): galaxies: active - galaxies: evolution - quasars: individual: BR B0019-1522 - quasars: individual: MRC B1256-243 - quasars: individual: MRC B2158-206 - galaxies: starburst

Nomenclature: Table 3: [SBB2012b] MRC B1256 A (Nos A-D), [SBB2012b] MRC B12158 A (Nos A-B), [SBB2012b] BR B0019 A (Nos A-Q).

Simbad objects: 36

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Number of rows : 36
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 [SBB2012b] BR B0019 P EmG 00 21 53.90 -15 05 58.2           ~ 1 0
2 [SBB2012b] BR B0019 A EmG 00 21 56.90 -15 04 04.3           ~ 1 0
3 [SBB2012b] BR B0019 E EmG 00 21 57.80 -15 06 58.7           ~ 1 0
4 [SBB2012b] BR B0019 J EmG 00 21 58.60 -15 04 56.2           ~ 1 0
5 [SBB2012b] BR B0019 B EmG 00 22 03.80 -15 07 41.2           ~ 1 0
6 [SBB2012b] BR B0019 I EmG 00 22 07.60 -15 05 27.1           ~ 1 0
7 QSO B0019-1522 QSO 00 22 08.0390087400 -15 05 39.983288316     19.0     ~ 59 0
8 [SBB2012b] BR B0019 C EmG 00 22 08.80 -15 06 58.8           ~ 1 0
9 [SBB2012b] BR B0019 D EmG 00 22 08.80 -15 06 56.3           ~ 1 0
10 [SBB2012b] BR B0019 N EmG 00 22 11.50 -15 05 04.1           ~ 1 0
11 [SBB2012b] BR B0019 G EmG 00 22 12.40 -15 06 17.8           ~ 1 0
12 [SBB2012b] BR B0019 H EmG 00 22 12.70 -15 06 01.4           ~ 1 0
13 [SBB2012b] BR B0019 Q EmG 00 22 13.90 -15 05 08.8           ~ 1 0
14 [SBB2012b] BR B0019 K EmG 00 22 14.20 -15 04 20.6           ~ 1 0
15 [SBB2012b] BR B0019 F EmG 00 22 14.50 -15 06 42.6           ~ 1 0
16 [SBB2012b] BR B0019 L EmG 00 22 14.80 -15 07 22.1           ~ 1 0
17 [SBB2012b] BR B0019 M EmG 00 22 15.30 -15 06 52.7           ~ 1 0
18 [SBB2012b] BR B0019 O EmG 00 22 18.00 -15 04 36.8           ~ 1 0
19 NAME 6C0140 Protocluster ClG 01 43 43.8 +32 53 50           ~ 3 0
20 PKS J0318-2535 rG 03 18 12.091 -25 35 09.37   23.6 23.8     ~ 81 2
21 QSO J0427-1303 QSO 04 27 07.3053460464 -13 02 53.708724168     17.50     ~ 160 1
22 QSO B0450-221 QSO 04 52 44.7804085920 -22 01 19.894766376     18.5     ~ 35 1
23 HD 49798 HXB 06 48 04.7001531360 -44 18 58.436036028 6.758 8.017 8.287 8.391 8.543 sdO6 339 0
24 GLEAM J092419-220140 QSO 09 24 19.92000 -22 01 41.4984       25.850   ~ 90 1
25 PKS J1140-2628 rG 11 40 48.35884 -26 29 08.6316     22.00     ~ 325 1
26 [SBB2012b] MRC B1256 C EmG 12 59 02.70 -24 37 15.1           ~ 1 0
27 [SBB2012b] MRC B1256 D EmG 12 59 05.30 -24 37 31.3           ~ 1 0
28 QSO B1256-243 Bla 12 59 12.6258211992 -24 36 05.508060660     19.5 19.2   ~ 43 1
29 [SBB2012b] MRC B1256 B EmG 12 59 15.70 -24 37 40.7           ~ 1 0
30 [SBB2012b] MRC B1256 A EmG 12 59 23.20 -24 37 32.9           ~ 1 0
31 [DBC2004] M03 rG 13 38 26.05 -19 42 30.5       22.4   ~ 106 0
32 CD-38 10980 WD* 16 23 33.8380498896 -39 13 46.161043572 9.916 10.885 11.029 10.936 10.841 DA2 526 0
33 [SBB2012b] MRC B2158 A EmG 22 01 26.00 -20 25 08.0           ~ 1 0
34 [VV98] J220127.1-202535 QSO 22 01 27.0751120872 -20 25 35.202418392     20.20     ~ 19 1
35 [SBB2012b] MRC B2158 B EmG 22 01 41.70 -20 24 03.5           ~ 1 0
36 QSO B2237-0607 QSO 22 39 53.6812264896 -05 52 19.996061772     18.3     ~ 120 0

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