2016ApJ...830...69Z

Query : 2016ApJ...830...69Z

2016ApJ...830...69Z - Astrophys. J., 830, 69-69 (2016/October-3)

The covering factor of warm dust in weak emission-line active galactic nuclei.

ZHANG X. and LIU Y.

Abstract (from CDS):

Weak emission-line active galactic nuclei (WLAGNs) are radio-quiet active galactic nuclei (AGNs) that have nearly featureless optical spectra. We investigate the ultraviolet to mid-infrared spectral energy distributions of 73 WLAGNs (0.4 < z < 3) and find that most of them are similar to normal AGNs. We also calculate the covering factor of warm dust of these 73 WLAGNs. No significant difference is indicated by a KS test between the covering factor of WLAGNs and normal AGNs in the common range of bolometric luminosity. The implication for several models of WLAGNs is discussed. The super-Eddington accretion is unlikely to be the dominant reason for the featureless spectrum of a WLAGN. The present results are still consistent with the evolution scenario, i.e., WLAGNs are in a special stage of AGNs.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: active - infrared: galaxies - quasars: emission lines - quasars: emission lines

Simbad objects: 96

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Number of rows : 96
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 [VV2006] J001741.8-105612 QSO 00 17 41.8762480608 -10 56 13.290401040   18.0 19.01 18.9   ~ 27 0
2 [VV2006] J005713.0+004205 QSO 00 57 13.0167297936 +00 42 05.818347036   19.79 19.40     ~ 26 0
3 SDSS J025716.22-001433.5 QSO 02 57 16.2220260816 -00 14 33.553630968   19.88 19.56     ~ 18 0
4 [VV2006] J025743.7+011144 QSO 02 57 43.7289916320 +01 11 44.523083796   19.65 19.26     ~ 35 1
5 SDSS J075331.84+270415.4 QSO 07 53 31.8403970592 +27 04 15.343080096   19.04 18.74     ~ 22 0
6 SDSS J080906.87+172955.1 QSO 08 09 06.8809106256 +17 29 55.183043328   19.11 18.78     ~ 29 0
7 SDSS J081250.80+522530.8 QSO 08 12 50.7924180384 +52 25 30.876768876   18.83 18.51 18.30   ~ 28 0
8 QSO J0826+5152 QSO 08 26 38.5922472096 +51 52 33.220318512   17.78 17.45     ~ 30 0
9 [VV2006] J082722.8+032756 QSO 08 27 22.7365593744 +03 27 55.971464508   19.24 18.82     ~ 26 0
10 [VV2006] J083304.7+415331 QSO 08 33 04.7415606144 +41 53 31.352571384   19.92 19.55     ~ 29 0
11 SDSS J083330.56+233909.2 QSO 08 33 30.5681222616 +23 39 09.228242700   20.02 19.69     ~ 25 0
12 2MASS J08341388+5112143 BLL 08 34 13.9050946128 +51 12 14.661445824   23.10 20.80 19.22   ~ 30 0
13 SDSS J083650.86+142539.0 QSO 08 36 50.8663794504 +14 25 39.019615968   19.55 19.29     ~ 20 0
14 SDSS J084249.03+235204.7 QSO 08 42 49.0260787824 +23 52 04.799745552   20.45 19.95     ~ 20 0
15 QSO B0841+129 BLL 08 44 24.2445546984 +12 45 46.526286780   18.28 18.5     ~ 121 0
16 [VV2006] J085025.6+342751 QSO 08 50 25.6112274024 +34 27 50.951627604   19.64 19.22     ~ 25 0
17 SDSS J085701.00+234239.5 QSO 08 57 00.9930782520 +23 42 39.606448428   19.66 19.38     ~ 21 0
18 GALEX J090107.6+384658 ** 09 01 07.6661320368 +38 46 58.896356880   18.21       DC+M: 21 0
19 [VV2006] J090703.9+410748 QSO 09 07 03.9236937336 +41 07 48.378735228   19.53 19.35     ~ 23 0
20 SDSS J090843.25+285229.8 QSO 09 08 43.2537866736 +28 52 29.798623560   19.03 18.83 18.55   ~ 32 0
21 SDSS J092312.75+174452.8 QSO 09 23 12.7486973784 +17 44 52.838261088   19.27 18.98     ~ 19 0
22 [VV2006] J092839.0+533152 QSO 09 28 39.0911149800 +53 31 52.159477728   19.69 19.32     ~ 24 0
23 SDSS J093437.53+262232.6 QSO 09 34 37.5354041328 +26 22 32.754955008           ~ 16 0
24 [VV2006] J094534.0+100950 QSO 09 45 33.9892793712 +10 09 50.100934932   18.51 18.16     ~ 57 0
25 SDSS J095041.07+233159.5 QSO 09 50 41.0712009120 +23 31 59.547057816   19.72 19.43     ~ 17 0
26 [VV2006] J095125.9+504600 BLL 09 51 25.9205222952 +50 45 59.605184772   19.30 19.16     ~ 25 0
27 SDSS J095438.39+234118.2 WD* 09 54 38.3902748160 +23 41 18.396731436           DC 8 0
28 [VV2006] J095802.9+062634 QSO 09 58 02.9334849192 +06 26 34.490310252   19.54 19.21     ~ 24 0
29 SDSS J100517.54+331202.8 QSO 10 05 17.5510695384 +33 12 02.930438340   19.31 19.02     ~ 24 0
30 [VV2006] J100902.8+621354 QSO 10 09 02.8315603080 +62 13 54.856254828   19.63 19.24     ~ 22 0
31 [VV2006] J101353.5+492758 QSO 10 13 53.4599472864 +49 27 58.133824560   17.9 18.68 18.3   ~ 32 0
32 SDSS J101849.78+271914.9 QSO 10 18 49.7819052456 +27 19 14.937003300           ~ 14 0
33 SDSS J102609.92+253651.2 QSO 10 26 09.9267850352 +25 36 51.249862997   19.69 19.42     ~ 17 0
34 [VV2006] J103601.1+084948 QSO 10 36 01.1217108192 +08 49 48.504409032   20.94 20.27     ~ 27 0
35 SDSS J103736.08+342730.8 QSO 10 37 36.0945310488 +34 27 30.833429184   19.76 19.52     ~ 5 0
36 [VV2006] J103806.7+382626 QSO 10 38 06.7239156840 +38 26 26.528974872   19.55 19.33     ~ 20 0
37 2MASS J11093849+3736113 BLL 11 09 38.5029384336 +37 36 11.744900712   18.88 18.51 18.72   ~ 42 0
38 2MASS J11140131+2222114 QSO 11 14 01.3128237648 +22 22 11.431511796       18.77   ~ 16 0
39 [VV2006] J111642.8+420324 QSO 11 16 42.8157780576 +42 03 24.999446196   19.53 19.20     ~ 26 0
40 [VV2006] J112809.1+022254 QSO 11 28 09.0707604768 +02 22 54.653727360   19.63 19.41     ~ 22 0
41 [VV2006] J113413.5+001042 QSO 11 34 13.4790675312 +00 10 42.053204928   19.35 19.01     ~ 34 0
42 SDSS J113747.64+391941.5 QSO 11 37 47.6437010904 +39 19 41.456900676   19.89 19.43     ~ 26 0
43 2QZ J113900.5-020140 BLL 11 39 00.5638305720 -02 01 39.967082004   19.86 19.40     ~ 12 0
44 2QZ J114137.1-002730 QSO 11 41 37.1347694184 -00 27 29.813061096   18.6 18.69 18.8   ~ 31 1
45 3XMM J114153.3+021924 BLL 11 41 53.3433799320 +02 19 24.332806200   19.91 18.97     ~ 44 0
46 [VV2006] J115353.4+502634 QSO 11 53 53.3629584264 +50 26 33.872845020   19.38 19.05     ~ 13 0
47 PB 3728 QSO 11 56 37.0202629320 +18 48 56.605297896   18.5       ~ 20 0
48 2MASS J11595972+4101530 QSO 11 59 59.7104670864 +41 01 52.909622724   18.29 17.94     ~ 28 0
49 SDSS J121221.56+534128.0 BLL 12 12 21.5596202040 +53 41 27.903506676   19.36 18.80     ~ 39 0
50 SDSS J121929.45+471522.8 ** 12 19 29.4954086136 +47 15 22.937198508   17.74 17.59 17.23   DA+dM 38 0
51 87GB 123346.7+034135 BL? 12 36 18.9040387776 +03 24 55.981220256           ~ 2 0
52 SDSS J123743.05+630145.1 BLL 12 37 43.0846910328 +63 01 44.856023412   20.70 19.49     ~ 47 0
53 SDSS J124203.13+085048.1 BL? 12 42 03.1367452680 +08 50 48.004047240           ~ 2 0
54 [VV2006] J124406.8+494936 QSO 12 44 06.7393012488 +49 49 36.026679684   19.90 19.51     ~ 19 0
55 SDSS J124745.39+325147.0 QSO 12 47 45.3915796800 +32 51 47.109568788   19.38 19.06     ~ 20 0
56 A2 110 BLL 12 52 19.4751130416 +26 40 53.955708276   18.44 18.14     ~ 31 0
57 AB 101 QSO 13 03 12.8924009592 +32 19 11.499041424   19.4 19.07     ~ 14 0
58 [VV2006] J131059.8+560140 QSO 13 10 59.7827498040 +56 01 40.142171784   18.93 18.69     ~ 30 0
59 [VV2006] J132130.2+481718 QSO 13 21 30.2072203896 +48 17 19.174992900   19.34 19.00     ~ 26 0
60 [VV2006] J132138.9+010846 QSO 13 21 38.8566207864 +01 08 46.338771984   19.37 19.13     ~ 24 0
61 SDSS J132703.26+341321.7 QSO 13 27 03.2654021808 +34 13 21.679696236   19.53 19.23     ~ 25 0
62 [VV2006] J132809.6+545452 QSO 13 28 09.6060299424 +54 54 52.697079792   18.27 18.04     ~ 31 0
63 [VV2006] J133222.6+034739 QSO 13 32 22.6294 +03 47 39.912   18.99 18.54     ~ 34 0
64 [VV2006] J134601.3+585820 QSO 13 46 01.2816986088 +58 58 20.073416736   18.36 18.02     ~ 34 0
65 SDSS J140710.26+241853.6 QSO 14 07 10.2748165872 +24 18 53.581895928   19.21 18.91     ~ 21 0
66 2QZ J140916.3-000012 WD* 14 09 16.3354322136 -00 00 11.322244188   19.10 18.84 18.51 18.29 DAHe 29 1
67 [VV2006] J140918.1+014217 QSO 14 09 18.1909677528 +01 42 17.496329256   19.31 19.00     ~ 25 0
68 SDSS J141141.96+140233.9 QSO 14 11 41.9637712656 +14 02 33.957640032   19.28 19.05     ~ 35 0
69 2MASS J14120000+6344149 BL? 14 12 00.002 +63 44 14.91       17.97   ~ 3 0
70 SDSS J141657.93+123431.6 QSO 14 16 57.9321599112 +12 34 31.586534220   19.23 18.99     ~ 23 0
71 SDSS J141730.92+073320.7 QSO 14 17 30.9269304312 +07 33 20.736615096   19.18 18.94     ~ 36 0
72 [VV2006] J142116.2+052252 QSO 14 21 16.2399338376 +05 22 52.349585304   20.25 19.68     ~ 24 0
73 SDSS J142601.30+243245.7 QSO 14 26 01.3076606064 +24 32 45.732804900   19.93 19.55     ~ 23 0
74 CSO 455 QSO 14 29 43.6391073816 +38 59 32.169923196   18.02 17.85 17.56   ~ 39 0
75 SDSS J143653.39+053408.9 QSO 14 36 53.3982286152 +05 34 08.829047352   19.90 19.64     ~ 4 0
76 LBQS 1445-0151 QSO 14 47 41.7674661264 -02 03 39.180180600   18.95 18.78     ~ 44 0
77 SDSS J144803.36+240704.2 QSO 14 48 03.3694205616 +24 07 04.241741700   20.49 19.86     ~ 18 0
78 SDSS J145514.08+235337.6 BL? 14 55 14.0856261408 +23 53 37.635588492           ~ 2 0
79 [VV2006] J145604.2+544252 QSO 14 56 04.1965799928 +54 42 53.195087844   19.95 19.69     ~ 25 0
80 FBQS J1530+2310 BLL 15 30 44.0798650416 +23 10 13.468054656   17.92 17.53 17.32   ~ 25 0
81 SDSS J154146.37+263100.8 WD* 15 41 46.3725053544 +26 31 00.854537880           DC 8 0
82 2MASS J15565095+3854462 LM* 15 56 51.0006016272 +38 54 46.502884872           M2V 4 0
83 SDSS J160114.81+042052.7 QSO 16 01 14.8151308056 +04 20 52.734354576   19.79 19.43     ~ 25 0
84 [VV2006] J160410.2+432614 QSO 16 04 10.2215791992 +43 26 14.671492116   18.68 18.44 18.04   ~ 33 0
85 2MASS J16101646+3039460 Sy1 16 10 16.4741164032 +30 39 45.899325396   21.96 20.77     ~ 18 0
86 [VV2006] J161245.7+511817 QSO 16 12 45.6764564112 +51 18 16.928197668   18.37 18.03     ~ 39 0
87 SDSS J162933.60+253200.6 QSO 16 29 33.6064669440 +25 32 00.628160424   19.94 19.64     ~ 22 0
88 2MASS J16332248+4227388 BL? 16 33 22.4820151560 +42 27 38.829571164           ~ 4 0
89 [VV2006] J164302.1+441422 QSO 16 43 02.0404671480 +44 14 22.053237648   19.18 18.80     ~ 28 0
90 SDSS J164903.28+304936.5 QSO 16 49 03.2848820136 +30 49 36.518018484   19.82 19.36     ~ 22 0
91 SDSS J165806.76+611858.9 BLL 16 58 06.7781250504 +61 18 58.955642172   23.91 21.69     ~ 22 0
92 [VV2006] J172858.1+603513 QSO 17 28 58.1563099152 +60 35 12.721912872   18.98 18.72     ~ 30 0
93 [VV2006] J212416.1-074129 QSO 21 24 16.0493689728 -07 41 29.870905668   17.9 18.12 17.7   ~ 29 0
94 2MASS J21275664+0047455 QSO 21 27 56.6654400864 +00 47 45.734096184   19.48 19.14     ~ 6 0
95 [VV2006] J213742.2-003912 QSO 21 37 42.2525872128 -00 39 12.796104924   19.91 19.56     ~ 29 0
96 [VV2006] J233939.5-103539 QSO 23 39 39.4840577040 -10 35 39.350545260   19.28 19.00     ~ 21 0

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