2011ApJ...741...91C

Query : 2011ApJ...741...91C

2011ApJ...741...91C - Astrophys. J., 741, 91 (2011/November-2)

The population of high-redshift active galactic nuclei in the Chandra-COSMOS survey.

CIVANO F., BRUSA M., COMASTRI A., ELVIS M., SALVATO M., ZAMORANI G., CAPAK P., FIORE F., GILLI R., HAO H., IKEDA H., KAKAZU Y., KARTALTEPE J.S., MASTERS D., MIYAJI T., MIGNOLI M., PUCCETTI S., SHANKAR F., SILVERMAN J., VIGNALI C., ZEZAS A. and KOEKEMOER A.M.

Abstract (from CDS):

We present the high-redshift (3 <z < 5.3) 0.5-2 keV number counts and the 2-10 keV (rest-frame) space density of X-ray-selected active galactic nuclei (AGNs) detected in the Chandra Cosmic Evolution Survey. The sample comprises 81 X-ray-detected sources with available spectroscopic (31) and photometric (50) redshifts plus 20 sources with a formal zphot< 3 but with a broad photometric redshift probability distribution, such that zphot + 1σ > 3. Eighty-one sources are selected in the 0.5-2 keV band, fourteen are selected in the 2-10 keV and six in the 0.5-10 keV bands. We sample the high-luminosity (log L_(2-10 keV)_> 44.15 erg/s) space density up to z ∼ 5 and a fainter luminosity range (43.5 erg/s < log L_(2-10 keV)_ < 44.15 erg/s) than previous studies, up to z = 3.5. We weighted the contribution to the number counts and the space density of the sources with photometric redshift by using their probability of being at z > 3. We find that the space density of high-luminosity AGNs declines exponentially at all the redshifts, confirming the trend observed for optically selected quasars. At lower luminosity, the measured space density is not conclusive, and a larger sample of faint sources is needed. Comparisons with optical luminosity functions and black hole formation models are presented together with prospects for future surveys.

Abstract Copyright: ∼

Journal keyword(s): evolution - galaxies: active - surveys - X-rays: galaxies

Simbad objects: 104

goto Full paper

goto View the references in ADS

Number of rows : 104
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 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
2 COSMOS2015 389782 AGN 09 58 29.82 +01 53 07.3           ~ 14 0
3 ACS-GC 20262389 QSO 09 58 40.71 +02 10 03.7   26.209 25.936   25.162 ~ 21 0
4 ACS-GC 20099567 QSO 09 58 56.70 +02 10 47.7   28.017 25.2149   23.885 ~ 31 0
5 COSMOS2015 814298 AGN 09 58 58.28 +02 32 07.4           ~ 11 0
6 [KCE2014] 149.7617+02.4358 AGN 09 59 02.798 +02 26 05.77           ~ 14 0
7 COSMOS2015 703515 AGN 09 59 05.04 +02 21 56.9     25.613     ~ 13 0
8 COSMOS2015 772453 QSO 09 59 07.70 +02 28 16.8   26.148 24.805     ~ 18 0
9 COSMOS2015 759451 QSO 09 59 08.11 +02 27 07.7   27.149 26.128 25.38 23.84 ~ 19 0
10 COSMOS2015 532685 AGN 09 59 10.310 +02 06 41.58           ~ 13 0
11 COSMOS2015 551738 AGN 09 59 12.84 +02 08 26.4 27.59 26.415 25.994 25.29 24.89 ~ 11 0
12 COSMOS2015 343337 AGN 09 59 13.89 +01 48 37.7   27.824 26.190     ~ 10 0
13 COSMOS2015 667577 AGN 09 59 14.040 +02 18 49.81           ~ 14 0
14 COSMOS2015 647006 AGN 09 59 14.92 +02 16 58.5           ~ 9 0
15 ACS-GC 20157089 QSO 09 59 22.98 +02 28 54.0   24.613 23.503   23.535 ~ 20 0
16 COSMOS2015 743261 AGN 09 59 24.36 +02 25 36.7           ~ 21 0
17 ACS-GC 20096726 AGN 09 59 24.37 +02 16 35.0   24.2981 22.9219   23.271 ~ 25 0
18 COSMOS2015 732469 AGN 09 59 26.028 +02 24 33.48           ~ 16 0
19 COSMOS2015 717734 AGN 09 59 26.53 +02 23 16.3           ~ 10 0
20 ACS-GC 20127353 QSO 09 59 28.726 +02 17 38.36   23.977 22.727   22.02 ~ 37 0
21 NAME CID-2550 AGN 09 59 29.89 +02 21 41.4           ~ 11 0
22 ACS-GC 20097019 QSO 09 59 31.010 +02 13 33.01         22.989 ~ 33 0
23 COSMOS2015 793328 QSO 09 59 31.793 +02 30 18.63           ~ 19 0
24 COSMOS2015 642746 AGN 09 59 32.66 +02 16 33.4 27.42 24.83 23.68 23.57 23.44 ~ 15 0
25 CXOC J095933.4+015757 AGN 09 59 33.45 +01 57 57.7           ~ 8 0
26 COSMOS2015 747071 AGN 09 59 34.62 +02 25 58.7 25.72 24.43 23.73 23.51 23.46 ~ 14 0
27 COSMOS2015 674517 AGN 09 59 35.440 +02 19 26.14           ~ 9 0
28 COSMOS2015 868816 AGN 09 59 38.25 +02 37 11.4     27.84   26.79 ~ 11 0
29 COSMOS2015 362713 AGN 09 59 38.68 +01 50 33.8           ~ 10 0
30 ACS-GC 20124303 AGN 09 59 40.68 +02 20 43.5   22.2023 21.6274   21.683 ~ 19 0
31 COSMOS2015 367689 G 09 59 42.68 +01 50 59.6   23.237 22.621     ~ 6 0
32 COSMOS2015 297892 AGN 09 59 46.71 +01 44 25.4 27.55 27.04 26.55 26.04 25.29 ~ 11 0
33 ACS-GC 20306819 AGN 09 59 48.52 +02 39 04.9 26.08 24.86 23.88 23.92 23.63 ~ 15 0
34 COSMOS2015 746810 AGN 09 59 52.0 +02 25 57   27.29 26.63 25.71 25.36 ~ 14 0
35 ACS-GC 20124098 AGN 09 59 52.6 +02 18 17   25.054 24.309   24.156 ~ 19 0
36 ACS-GC 20273957 AGN 09 59 55.58 +02 18 54.0   25.376 25.582   24.692 ~ 21 0
37 COSMOS2015 656572 AGN 09 59 57.72 +02 17 50.3 26.31 25.15 24.24 24.17 24.03 ~ 14 0
38 COSMOS2015 445486 AGN 09 59 59.669 +01 58 28.42           ~ 10 0
39 COSMOS2015 486220 QSO 10 00 01.058 +02 02 19.96   23.2001 21.8854   21.78 ~ 37 0
40 XMMC 363 AGN 10 00 01.865 +02 08 57.47           ~ 11 0
41 COSMOS2015 370741 AGN 10 00 02.25 +01 51 09.6           ~ 12 0
42 COSMOS2015 465262 AGN 10 00 06.18 +02 00 13.5     25.073     ~ 8 0
43 COSMOS2015 382018 AGN 10 00 10.24 +01 52 19.8 26.14 25.80 23.93 23.95 23.87 ~ 16 0
44 COSMOS2015 703853 AGN 10 00 11.17 +02 22 02.8           ~ 15 0
45 COSMOS2015 287015 AGN 10 00 14.92 +01 43 21.7           ~ 12 0
46 COSMOS2015 739490 AGN 10 00 15.24 +02 25 18.5           ~ 12 0
47 COSMOS2015 320928 AGN 10 00 15.28 +01 46 38.5           ~ 10 0
48 COSMOS2015 551941 AGN 10 00 20.68 +02 08 19.9           ~ 11 0
49 COSMOS2015 494149 AGN 10 00 21.21 +02 03 06.9           ~ 8 0
50 COSMOS 886836 AGN 10 00 21.71 +01 55 47.3           ~ 8 0
51 COSMOS2015 475479 QSO 10 00 23.24 +02 01 17.4 27.43 26.13 24.58 24.50 24.27 ~ 19 0
52 COSMOS2015 559688 AGN 10 00 23.99 +02 09 09.6 27.97 26.508 26.024 25.65 25.03 ~ 13 0
53 COSMOS2015 739170 QSO 10 00 24.24 +02 25 09.9   26.736 24.796     ~ 26 0
54 COSMOS2015 310572 AGN 10 00 25.77 +01 45 33.2   25.47 23.66 22.96 22.65 ~ 20 0
55 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
56 CANDELS COSMOS F160W J100032.07+022726.6 rG 10 00 32.07 +02 27 26.7 26.94 25.49 24.38 24.42 24.19 ~ 20 0
57 COSMOS2015 284161 AGN 10 00 32.36 +01 43 05.0           ~ 9 0
58 CANDELS COSMOS F160W J100036.52+021828.1 rG 10 00 36.52 +02 18 28.3   26.17 24.92 24.63 24.31 ~ 27 0
59 COSMOS2015 578268 AGN 10 00 39.35 +02 10 45.4   26.300 25.553     ~ 10 0
60 COSMOS2015 836663 rG 10 00 42.33658861761 +02 34 10.6089094575           ~ 10 0
61 COSMOS2015 510871 Sy1 10 00 43.41 +02 04 33.6   23.6451 22.9813     ~ 19 0
62 ACS-GC 20090383 AGN 10 00 46.23 +02 13 11.5 23.51 23.9403 23.0494   23.169 ~ 32 0
63 COSMOS2015 292565 AGN 10 00 47.89 +01 43 52.9           ~ 9 0
64 COSMOS2015 623137 AGN 10 00 48.80 +02 14 48.0           ~ 14 0
65 COSMOS2015 295280 AGN 10 00 49.16 +01 44 09.5           ~ 8 0
66 ACS-GC 20149465 rG 10 00 49.28 +02 30 10.5   24.0642 23.4208   23.425 ~ 24 0
67 SDSS J100050.12+022854.8 QSO 10 00 50.1200098608 +02 28 54.857419212   21.1516 19.9896   20.08 ~ 52 0
68 SDSS J100050.15+022618.4 QSO 10 00 50.154 +02 26 18.46   22.6684 21.5393   21.18 ~ 44 0
69 ACS-GC 20118275 Sy1 10 00 50.580 +02 23 29.30   23.3968 22.4927   22.986 ~ 37 0
70 ACS-GC 20288368 AGN 10 00 51.40 +02 28 30.1 24.93 24.31 23.52 23.46 23.22 ~ 18 0
71 COSMOS2015 845652 QSO 10 00 51.59 +02 34 57.6           ~ 39 0
72 COSMOS2015 335857 AGN 10 00 54.22 +01 47 59.2           ~ 12 0
73 ACS-GC 20115062 Sy2 10 00 59.47 +02 26 31.7   24.095 24.346   24.335 ~ 26 0
74 COSMOS2015 292658 AGN 10 01 02.84 +01 43 53.8 27.36 26.838 25.846 25.59 25.22 ~ 12 0
75 COSMOS2015 273403 QSO 10 01 04.17 +01 42 03.1   27.179 26.077     ~ 21 0
76 COSMOS2015 219453 AGN 10 01 05.18 +01 36 49.0           ~ 13 0
77 COSMOS2015 664330 AGN 10 01 08.407 +02 18 33.76           ~ 14 0
78 COSMOS2015 242338 AGN 10 01 09.06 +01 39 02.5           ~ 9 0
79 COSMOS2015 558647 QSO 10 01 11.3378613816 +02 08 55.615115832   22.159 21.175   20.50 ~ 41 0
80 COSMOS2015 265085 AGN 10 01 11.94 +01 41 16.2           ~ 8 0
81 COSMOS2015 658951 AGN 10 01 12.18 +02 18 01.9 27.49 25.29 24.14 24.11 24.00 ~ 15 0
82 ACS-GC 20208024 QSO 10 01 13.450 +01 45 41.89         25.222 ~ 19 0
83 COSMOS2015 464170 AGN 10 01 16.29 +02 00 17.7           ~ 11 0
84 COSMOS2015 752272 AGN 10 01 19.96 +02 26 29.4           ~ 15 0
85 COSMOS2015 327914 AGN 10 01 20.33 +01 47 18.5           ~ 8 0
86 COSMOS2015 233214 AGN 10 01 22.63 +01 38 09.3           ~ 10 0
87 COSMOS2015 435462 AGN 10 01 22.826 +01 57 28.35           ~ 14 0
88 COSMOS2015 607759 AGN 10 01 25.52 +02 13 26.3           ~ 8 0
89 COSMOS 1207312 QSO 10 01 26.31 +02 04 24.9           ~ 20 0
90 ACS-GC 20088796 QSO 10 01 27.53 +02 08 37.8   24.6409 23.0934   23.618 ~ 29 0
91 COSMOS2015 383898 AGN 10 01 30.92 +01 52 34.0           ~ 9 0
92 COSMOS2015 524423 AGN 10 01 31.41 +02 05 58.8           ~ 8 0
93 COSMOS2015 508726 AGN 10 01 32.06 +02 04 29.1   26.102 24.781     ~ 15 0
94 COSMOS2015 447171 rG 10 01 34.814 +01 58 37.14           ~ 15 0
95 COSMOS2015 701883 AGN 10 01 39.40 +02 21 52.9           ~ 8 0
96 ACS-GC 20031210 AGN 10 01 39.67 +01 56 03.2     27.040 26.45 24.86 ~ 14 0
97 COSMOS2015 666129 AGN 10 01 42.05 +02 18 43.5           ~ 8 0
98 COSMOS2015 441487 AGN 10 01 49.19 +01 58 02.7   25.4748 24.2782     ~ 14 0
99 ACS-GC 20285971 QSO 10 01 52.100 +02 31 55.19         25.700 ~ 17 0
100 CXOC J100156.4+022448 AGN 10 01 56.46 +02 24 48.8           ~ 8 0
101 COSMOS2015 743690 AGN 10 01 56.75 +02 25 39.7           ~ 9 0
102 COSMOS2015 607674 AGN 10 02 11.203 +02 13 27.15           ~ 16 0
103 COSMOS2015 737008 AGN 10 02 35.37 +02 25 05.9           ~ 12 0
104 NAME Chandra Deep Field-North reg 12 36.8 +62 13           ~ 686 0

To bookmark this query, right click on this link: simbad:objects in 2011ApJ...741...91C and select 'bookmark this link' or equivalent in the popup menu