2009ApJ...705L..76W

Query : 2009ApJ...705L..76W

2009ApJ...705L..76W - Astrophys. J., 705, L76-L80 (2009/November-1)

Active galactic nuclei with double-peaked narrow lines: are they dual active galactic nuclei?

WANG J.-M., CHEN Y.-M., HU C., MAO W.-M., ZHANG S. and BIAN W.-H.

Abstract (from CDS):

Double-peaked [O III] profiles in active galactic nuclei (AGNs) may provide evidence for the existence of dual AGNs, but a good diagnostic for selecting them is currently lacking. Starting from ∼7000 active galaxies in Sloan Digital Sky Survey DR7, we assemble a sample of 87 type 2 AGNs with double-peaked [O III] profiles. The nuclear obscuration in the type 2 AGNs allows us to determine redshifts of host galaxies through stellar absorption lines. We typically find that one peak is redshifted and another is blueshifted relative to the host galaxy. We find a strong correlation between the ratios of the shifts and the double peak fluxes. The correlation can be naturally explained by the Keplerian relation predicted by models of co-rotating dual AGNs. The current sample statistically favors that most of the [O III] double-peaked sources are dual AGNs and disfavors other explanations, such as rotating disk and outflows. These dual AGNs have a separation distance at ∼1 kpc scale, showing an intermediate phase of merging systems. The appearance of dual AGNs is about ∼10–2, impacting on the current observational deficit of binary supermassive black holes with a probability of ∼10–4 (Boroson & Lauer).

Abstract Copyright: ∼

Journal keyword(s): black hole physics - galaxies: evolution

VizieR on-line data: <Available at CDS (J/ApJ/705/L76): table1.dat>

Errata: erratum in ApJ vol.707 p.L107 (2009)

Simbad objects: 93

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Number of rows : 93
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 2MASS J00024907+0045051 Sy1 00 02 49.0771278648 +00 45 04.933132632   19.05 18.23     ~ 29 0
2 2MASS J00065686+1548479 Sy2 00 06 56.8514393208 +15 48 47.907478152           ~ 10 0
3 LEDA 1461975 Sy2 01 35 55.8263420472 +14 35 29.635003716   18.51 17.88     ~ 14 0
4 2MASX J01420899-0050495 Sy2 01 42 09.0222189528 -00 50 50.059306860   19.25 18.50     ~ 17 0
5 2MASX J01560516-0007219 Sy2 01 56 05.1412176504 -00 07 21.775066824   18.64 17.84     ~ 16 0
6 2MASS J07350948+4036245 Sy2 07 35 09.4975500432 +40 36 24.394046976           ~ 9 0
7 2MASX J07472979+3440185 Sy2 07 47 29.7701296896 +34 40 18.140404152   19.46 18.66     ~ 11 0
8 LEDA 2261682 Sy2 07 49 53.3817694896 +45 14 54.524561604           ~ 42 0
9 2MASS J07522333+2736434 Sy2 07 52 23.3523533328 +27 36 43.084949544           ~ 12 0
10 2MASX J08021869+3046228 Sy2 08 02 18.6595636632 +30 46 22.819359144   18.34 17.73     ~ 20 0
11 2MASS J08041822+3051572 Sy2 08 04 18.2284008120 +30 51 57.182260500           ~ 7 0
12 Z 207-33 Sy2 08 07 40.9957797624 +39 00 15.247008108   14.90 14.08     ~ 190 0
13 2MASX J08084123+4813522 Sy1 08 08 41.2212497520 +48 13 51.909011184   19.55 18.71     ~ 12 0
14 2MASS J08143013+2657299 Sy1 08 14 30.1306473528 +26 57 29.816609472           ~ 10 0
15 2MASX J08210788+5021156 Sy2 08 21 07.8842973600 +50 21 15.750134640   19.47 18.67     ~ 13 0
16 SDSS J085416.75+502631.9 Sy2 08 54 16.7641929792 +50 26 31.966282536   19.47 18.75     ~ 14 0
17 MCG+11-11-032 Sy2 08 55 12.5539742880 +64 23 45.428865000   17       ~ 72 0
18 IRAS 08559+1053 Sy2 08 58 41.7769654542 +10 41 21.877217105           ~ 60 0
19 7C 093818.10+395820.00 Sy2 09 41 24.0268234920 +39 44 41.809159068   16.36 16.4     ~ 195 2
20 2MASS J09442760+1447171 AGN 09 44 27.5912818560 +14 47 17.036778336           ~ 8 0
21 2MASX J09552892+3838274 Sy2 09 55 28.8834751512 +38 38 27.084100164           ~ 14 0
22 2dFGRS TGN285Z051 Sy1 09 58 33.1980376152 -00 51 18.666040536   18.62 17.84 15.783   ~ 16 0
23 SDSS J100043.13+020637.2 Sy1 10 00 43.1299846800 +02 06 37.403465580 20.25 19.86 19.37   18.79 ~ 125 0
24 2MASS J10114392+3259434 Sy1 10 11 43.9160440608 +32 59 43.485356796           ~ 9 0
25 Z 8-77 Sy2 10 13 46.8173594520 -00 54 51.236467848   18.25 17.58 15.014   ~ 78 0
26 2dFGRS TGN356Z245 EmG 10 13 48.4536926640 +00 20 14.721819540   18.208   16.867   ~ 6 0
27 2MASX J10232557+3243484 Sy1 10 23 25.5652511304 +32 43 48.345735324           ~ 14 0
28 ICRF J104807.7+005543 Sy2 10 48 07.74459815 +00 55 43.4818043   21.89 21.42     ~ 47 1
29 2MASS J10481300+4427102 LIN 10 48 13.0420945944 +44 27 10.374874956           ~ 3 0
30 2MASX J10565334+3319451 Sy1 10 56 53.3674639728 +33 19 45.673385952           ~ 18 0
31 2MASX J11021567+2907254 AGN 11 02 15.6762735936 +29 07 25.185698004     15.84     ~ 17 0
32 2MASS J11082179+5918519 AGN 11 08 21.8020488672 +59 18 51.941478204           ~ 6 0
33 LEDA 1607924 Sy1 11 08 32.0073418752 +19 51 28.185783948           ~ 9 0
34 2dFGRS TGN437Z131 Sy2 11 09 57.1326206136 +02 01 38.617514436   16.725   15.567   ~ 24 0
35 2MASS J11104235+0300337 AGN 11 10 42.3641241384 +03 00 33.968237400           ~ 6 0
36 2dFGRS TGN436Z006 AGN 11 10 54.8950736544 +01 29 36.099459348   18.504   17.214   ~ 5 0
37 2MASX J11120176+2750537 Sy2 11 12 01.7851371624 +27 50 53.810053440           ~ 25 0
38 2MASS J11133339+1657116 Sy2 11 13 33.4046260656 +16 57 11.702438244           ~ 8 0
39 2MASS J11180315+0626577 Sy2 11 18 03.1606030920 +06 26 57.879760704           ~ 5 0
40 SDSS J112659.53+294442.7 AGN 11 26 59.5358476056 +29 44 42.785174760           ~ 20 0
41 2dFGRS TGN236Z106 Sy1 11 31 26.085 -02 04 59.31   18.062   16.604   ~ 13 0
42 2MASS J11363059+1358491 LIN 11 36 30.6150769272 +13 58 48.930440448           ~ 5 0
43 2MASS J11375937+1437339 Sy2 11 37 59.3673827232 +14 37 33.744204804           ~ 7 0
44 2MASS J11404802+4452084 AGN 11 40 48.0015403584 +44 52 08.379151788           ~ 5 0
45 2MASS J11424992+1027005 Sy2 11 42 49.9232547048 +10 27 00.502971264           ~ 5 0
46 2dFGRS TGN240Z213 Sy2 11 46 10.0430866944 -02 26 19.151641464   18.246   16.863   ~ 11 0
47 2MASX J11484015-0216370 Sy2 11 48 40.1443869240 -02 16 37.190316648   18.88 18.14 16.256   ~ 12 0
48 Z 40-49 Sy2 11 50 28.1565386688 +04 41 41.769499488   15.5       ~ 27 0
49 2MASS J11524934+1903001 Sy1 11 52 49.3361708904 +19 03 00.205206084           ~ 18 0
50 2MASS J11554851+1101588 LIN 11 55 48.516 +11 01 58.83           ~ 7 0
51 LEDA 1428221 AGN 12 03 20.6522578248 +13 19 31.387862280           ~ 24 1
52 2MASS J12035734+2808567 Sy2 12 03 57.3423000744 +28 08 56.849994240           ~ 7 0
53 2MASS J12080207+2304306 Sy1 12 08 02.0854343664 +23 04 30.561937680           ~ 7 0
54 2MASS J12131143+6508188 Sy2 12 13 11.3761730448 +65 08 18.897176976           ~ 4 0
55 2dFGRS TGN317Z192 Sy2 12 15 27.4518895416 +00 01 09.105227364   19.35 18.73     ~ 15 0
56 2MASS J12352494+0608109 Sy2 12 35 24.9491999232 +06 08 10.656331296           ~ 10 0
57 2MASS J12353859+0502216 AGN 12 35 38.5978482336 +05 02 21.404628924           ~ 9 0
58 LEDA 4344181 AGN 12 50 49.4691995880 +07 46 17.961702600           ~ 6 0
59 2MASS J13123596+5004159 Sy2 13 12 35.9600950680 +50 04 16.015538928           ~ 10 0
60 2MASX J13151589+2134034 Sy1 13 15 15.9333774120 +21 34 03.437385348           ~ 13 0
61 2MASS J13254795+5450198 AGN 13 25 47.9562171504 +54 50 19.493550636           ~ 3 0
62 NGC 5245 Sy2 13 37 23.2364626608 +03 53 50.778513996   15.3       ~ 29 0
63 2MASS J13380459+2642096 LIN 13 38 04.5981120096 +26 42 09.663798888   16.87       ~ 9 0
64 2MASX J13520776+0525555 Sy2 13 52 07.7339954520 +05 25 55.878264156           ~ 15 0
65 EGSD2 J141550.8+520929 Sy2 14 15 50.75709 +52 09 30.2264   23.36   21.362 20.372 ~ 13 0
66 CANDELS EGS F160W J142033.6+525917.3 Sy2 14 20 33.57522 +52 59 17.2848   25.5   22.56 21.26 ~ 21 0
67 2MASS J14203962+4959067 Sy2 14 20 39.6144312216 +49 59 06.735999660           ~ 7 0
68 LEDA 3487297 Sy2 14 31 32.8392149880 +43 58 07.286963304           ~ 11 0
69 2MASS J14343457+1405481 Sy2 14 34 34.5788361864 +14 05 48.243849288           ~ 7 0
70 2MASS J14521727+5110502 Sy2 14 52 17.2695156408 +51 10 50.223879156           ~ 9 0
71 2MASX J14580155+2742519 Sy2 14 58 01.5812007024 +27 42 51.795668628           ~ 5 0
72 LEDA 2125826 Sy1 15 00 53.9132821584 +38 23 49.592918256           ~ 7 0
73 2MASX J15045234+3214149 Sy2 15 04 52.350 +32 14 15.00           ~ 10 0
74 2MASX J15165924+0517513 Sy2 15 16 59.2405273272 +05 17 51.555037668           ~ 22 0
75 2MASX J15170926+3353250 Sy2 15 17 09.240 +33 53 24.60   19.56 18.65     ~ 39 1
76 NGC 5929 Sy1 15 26 06.1564333536 +41 40 14.384294616   13.0 14.00     ~ 450 0
77 NGC 5930 AGN 15 26 07.9964334517 +41 40 33.691556640   13.0       ~ 441 0
78 2MASS J15321722+4532255 Sy2 15 32 17.2337831616 +45 32 25.538172252           ~ 6 0
79 2MASS J15331529+5750019 Sy2 15 33 15.3115779024 +57 50 01.914031860           ~ 8 0
80 2MASS J15520593+0433172 Sy2 15 52 05.9034745450 +04 33 17.550568794           ~ 15 0
81 2MASX J15561929+0948551 Sy2 15 56 19.2978089376 +09 48 55.465772400           ~ 22 0
82 NVSS J160024+264034 rG 16 00 24.3681407424 +26 40 35.200953300           ~ 9 0
83 2MASS J16043620+5009581 AGN 16 04 36.2133053760 +50 09 58.215204828           ~ 11 0
84 2MASX J16052460+1522338 Sy2 16 05 24.5978470920 +15 22 33.620058768           ~ 9 0
85 2MASS J16063671+3427546 AGN 16 06 36.7133157912 +34 27 54.527481792           ~ 5 0
86 2MASS J16100643+2107350 Sy2 16 10 06.4182569472 +21 07 35.052662856           ~ 5 0
87 2MASS J16293960+2408559 Sy2 16 29 39.5910996288 +24 08 56.015310660           ~ 7 0
88 2MASS J16331602+2627165 Sy2 16 33 16.0411097544 +26 27 16.422717528           ~ 9 0
89 2MASS J16520613+3107075 Sy2 16 52 06.1457800944 +31 07 07.550400720           ~ 12 0
90 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
91 2MASX J22542099-0051345 Sy2 22 54 21.0011988648 -00 51 34.176140352   18.77 18.05     ~ 15 0
92 LEDA 989436 Sy2 23 04 42.8246931384 -09 33 45.348723216   15.83   14.59   ~ 32 0
93 2dFGRS TGS886Z108 Sy2 23 10 51.9549319608 -09 00 11.962756332   17.372   16.161   ~ 16 0

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