2015MNRAS.448.3167W

Query : 2015MNRAS.448.3167W

2015MNRAS.448.3167W - Mon. Not. R. Astron. Soc., 448, 3167-3195 (2015/April-3)

The systematic search for z ≳ 5 active galactic nuclei in the Chandra Deep Field-South.

WEIGEL A.K., SCHAWINSKI K., TREISTER E., URRY C.M., KOSS M. and TRAKHTENBROT B.

Abstract (from CDS):

We investigate early black hole (BH) growth through the methodical search for z ≳ 5 active galactic nuclei (AGN) in the Chandra Deep Field South. We base our search on the Chandra 4-Ms data with flux limits of 9.1x10–18 (soft, 0.5-2keV) and 5.5x10–17erg/s/cm2 (hard, 2-8keV). At z ∼ 5, this corresponds to luminosities as low as ∼ 1042 ( ∼ 1043) erg/s in the soft (hard) band and should allow us to detect Compton-thin AGN with MBH > 107M☉ and Eddington ratios >0.1. Our field (0.03deg2) contains over 600z ∼ 5 Lyman Break Galaxies. Based on lower redshift relations, we would expect ∼ 20 of them to host AGN. After combining the Chandra data with Great Observatories Origins Deep Survey (GOODS)/Advanced Camera for Surveys (ACS), CANDELS/Wide Field Camera 3 and Spitzer/Infrared Array Camera data, the sample consists of 58 high-redshift candidates. We run a photometric redshift code, stack the GOODS/ACS data, apply colour criteria and the Lyman Break Technique and use the X-ray Hardness Ratio. We combine our tests and using additional data find that all sources are most likely at low redshift. We also find five X-ray sources without a counterpart in the optical or infrared which might be spurious detections. We conclude that our field does not contain any convincing z ≳ 5 AGN. Explanations for this result include a low BH occupation fraction, a low AGN fraction, short, super-Eddington growth modes, BH growth through BH-BH mergers or in optically faint galaxies. By searching for z ≳ 5 AGN, we are setting the foundation for constraining early BH growth and seed formation scenarios.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): galaxies: active - galaxies: high-redshift - X-rays: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/448/3167): table4.dat tablea4.dat tablea5.dat tablea6.dat tablea7.dat tablea8.dat>

Simbad objects: 70

goto Full paper

goto View the references in ADS

Number of rows : 70
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 [XLB2011] J033204.38-274344.7 AGN 03 32 04.32 -27 43 44.5   30.180     27.484 ~ 3 0
2 [LBX2017] 150 AGN 03 32 06.408 -27 45 54.74   26.92   25.73 24.8238 ~ 29 0
3 CXOCDFS J033209.5-274754 AGN 03 32 09.59 -27 47 54.8   28.540     26.216 ~ 17 0
4 CXOCDFS J033209.9-275016 rG 03 32 09.860 -27 50 15.70   30.071 28.16   28.428 ~ 39 0
5 [LBX2017] 217 AGN 03 32 11.4424 -27 50 05.734   24.6207 25.10 24.45 24.8650 ~ 25 0
6 ACS-GC 90107802 AGN 03 32 12.54 -27 46 29.5   27.514 25.775 24.73 24.038 ~ 36 0
7 GOODS J033213.08-274734.7 AGN 03 32 13.092 -27 47 34.51         26.812 ~ 16 0
8 [XLB2011] J033213.20-275047.3 AGN 03 32 13.20 -27 50 47.3           ~ 2 0
9 ATCDFS9 J033213.90-275000.6 rG 03 32 13.898 -27 50 00.88   26.72 26.71 26.13 25.630 ~ 37 0
10 [SWM2014] GOODS-S 13174 AGN 03 32 14.8572 -27 51 03.761   26.13 25.75 25.19 24.925 ~ 30 0
11 CXOCDFS J033215.4-275038 rG 03 32 15.306 -27 50 36.71   25.872 27.28   23.627 ~ 25 0
12 GNS 6114 AGN 03 32 15.7591 -27 52 43.924   24.59 24.52 24.16 24.929 ~ 19 0
13 MUSE-WIDE 102037154 AGN 03 32 16.0159 -27 48 59.863   26.83   25.67 24.9250 ~ 27 0
14 [SWM2014] GOODS-S 30928 AGN 03 32 17.160 -27 46 11.14   26.541     25.083 ~ 18 0
15 GOODS J033217.29-274908.1 rG 03 32 17.280 -27 49 08.40   28.23     27.004 ~ 31 0
16 ZFOURGE CDFS 7932 AGN 03 32 18.348 -27 51 50.49   29.495     27.048 ~ 11 0
17 GOODS-MUSIC 30049 rG 03 32 19.700 -27 46 02.20         27.418 ~ 23 0
18 ZFOURGE CDFS 7732 AGN 03 32 19.836 -27 51 59.44   28.20 27.67   25.82 ~ 22 0
19 [XLB2011] J033220.26-274920.1 AGN 03 32 20.247 -27 49 19.87           ~ 4 0
20 [SWM2014] GOODS-S 28253 AGN 03 32 21.78 -27 46 56.9   28.384     26.217 ~ 29 0
21 GOODS-MUSIC 70307 rG 03 32 22.159 -27 49 36.76   28.59 27.24   26.493 ~ 27 0
22 CXOCDFS J033222.2-274812 AGN 03 32 22.16 -27 48 11.6   27.9990 28.91   26.106 ~ 43 0
23 GOODS J033222.15-275237.1 AGN 03 32 22.161 -27 52 37.09   29.277     26.513 ~ 15 0
24 [SWM2014] GOODS-S 18406 AGN 03 32 22.533 -27 49 32.61   26.402   26.06 24.809 ~ 18 0
25 EIS-DEEP CDFS-1 Ks 1 218 AGN 03 32 23.127 -27 44 42.20   26.61   25.93 25.260 ~ 27 0
26 EIS-DEEP CDFS-1 J 1 688 rG 03 32 23.607 -27 46 00.78   25.235   24.084 23.110 ~ 34 0
27 [LBX2017] 426 AGN 03 32 24.00 -27 48 30.7           ~ 15 0
28 [XLB2011] J033224.38-274918.1 AGN 03 32 24.40 -27 49 18.2           ~ 6 0
29 BBG 4550 AGN 03 32 24.624 -27 51 37.82   28.774 27.35   26.004 ~ 22 0
30 [RNL2013] cdfs4Ms 345 AGN 03 32 24.651 -27 54 42.90   20.271   19.45 18.996 ~ 9 0
31 [LBX2017] 453 AGN 03 32 25.25 -27 52 30.7   27.15 27.00 27.01 26.581 ~ 44 0
32 CXOCDFS J033225.9-275121 AGN 03 32 25.810 -27 51 20.32   28.60 27.77   26.872 ~ 31 0
33 VANDELS CDFS 001381 AGN 03 32 26.76 -27 54 34.1   27.327   26.49 25.304 ~ 8 0
34 [LBX2017] 490 AGN 03 32 26.7783 -27 46 03.991   28.9513     27.239 ~ 48 0
35 [XLB2011] J033227.98-274806.4 AGN 03 32 27.98 -27 48 06.4           ~ 2 0
36 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
37 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 1623 1
38 [SWM2014] GOODS-S 31907 AGN 03 32 28.5998 -27 45 56.764   28.23     26.749 ~ 24 0
39 GOODS-MUSIC 70099 rG 03 32 28.78 -27 44 35.2           ~ 20 0
40 JADES-GS NC 216241 rG 03 32 29.253 -27 45 10.32         26.910 ~ 16 0
41 ALESS J033229.29-275619.7 Sy1 03 32 29.2912 -27 56 19.465     26.76 25.82 25.1655 ~ 122 0
42 CXOCDFS J033229.9-275329 AGN 03 32 29.7841 -27 53 28.369   27.24   26.66 27.0326 ~ 34 0
43 [SWM2014] GOODS-S 18230 AGN 03 32 31.11 -27 49 39.8   27.416     25.740 ~ 19 0
44 GOODS-MUSIC 70220 AGN 03 32 31.309 -27 47 28.04   30.2961 27.72   27.026 ~ 18 0
45 CXOCDFS J033232.2-274652 AGN 03 32 32.170 -27 46 51.49   28.3350 27.2830   26.411 ~ 50 0
46 [SWM2014] GOODS-S 23421 AGN 03 32 33.065 -27 48 07.53   27.2325   24.89 23.861 ~ 34 0
47 CXOCDFS J033233.2-275206 AGN 03 32 33.113 -27 52 05.47   28.63 28.82   28.550 ~ 32 0
48 ATCDFS J033233.44-275228.0 rG 03 32 33.446 -27 52 28.55   31.457 27.72   27.963 ~ 41 0
49 [SWM2014] GOODS-S 24289 AGN 03 32 33.677 -27 47 51.09   28.1169 28.33 26.52 25.300 ~ 37 0
50 CXOCDFS J033234.1-274900 AGN 03 32 33.996 -27 48 59.58   27.679 27.06 26.060 26.594 ~ 35 0
51 CXOU J033235.1-275215 AGN 03 32 35.19 -27 52 15.7   30.517 28.52   31.665 ~ 30 0
52 VANDELS CDFS 002667 AGN 03 32 36.09 -27 53 21.0   27.833     26.574 ~ 4 0
53 ASPECS LP.1mm.C08 AGN 03 32 38.029 -27 46 26.31 28.2222 28.4300 27.60 27.04 26.106 ~ 70 1
54 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1900 0
55 CXOCDFS J033239.1-274440 AGN 03 32 39.052 -27 44 39.32   27.8340     26.304 ~ 44 1
56 CXOCDFS J033239.2-274833 AGN 03 32 39.173 -27 48 32.35   28.180   26.63 26.045 ~ 60 1
57 ACS-GC 90045073 Sy2 03 32 39.670 -27 48 50.60   27.3148   25.18 24.512 ~ 108 0
58 ATCDFS J033240.82-275545.8 Sy2 03 32 40.83 -27 55 46.6   26.87 26.153 25.42 25.4033 ~ 64 0
59 NAME HUDF-JD1 AGN 03 32 42.885 -27 48 09.51   31.2665 29.09   29.527 ~ 35 0
60 [GYO2019] GS-67 rG 03 32 43.320 -27 46 47.01   26.849     26.370 ~ 12 0
61 CXOCDFS J033244.1-274636 AGN 03 32 44.007 -27 46 34.98 27.8096 25.0831 24.531 24.830 24.4864 ~ 53 0
62 [XLB2011] 589 AGN 03 32 44.387 -27 49 10.91           ~ 11 0
63 ZFOURGE CDFS 25889 AGN 03 32 44.485 -27 43 02.36   28.021 27.81   28.682 ~ 13 0
64 CXOCDFS J033247.2-275335 QSO 03 32 47.0589 -27 53 33.531   30.967   25.98 26.2117 ~ 38 0
65 [LBX2017] 851 AGN 03 32 47.550 -27 49 55.71           ~ 14 0
66 ACS-GC 90040140 AGN 03 32 47.73 -27 50 38.2   25.7528 25.87 26.18 24.112 ~ 38 0
67 ZFOURGE CDFS 10343 rG 03 32 48.408 -27 50 39.33   34.724     28.962 ~ 10 0
68 [XLB2011] J033250.05-274610.0 AGN 03 32 50.055 -27 46 09.63       19.34   ~ 5 0
69 CXOCDFS J033251.8-275214 AGN 03 32 51.644 -27 52 12.94   28.350 28.00   27.311 ~ 37 0
70 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1967 1

To bookmark this query, right click on this link: simbad:objects in 2015MNRAS.448.3167W and select 'bookmark this link' or equivalent in the popup menu