2003ApJS..148..275A

Query : 2003ApJS..148..275A

2003ApJS..148..275A - Astrophys. J., Suppl. Ser., 148, 275-315 (2003/October-0)

Optical identification of the ASCA medium sensitivity survey in the northern sky: nature of hard X-Ray-Selected luminous active galactic nuclei.

AKIYAMA M., UEDA Y., OHTA K., TAKAHASHI T. and YAMADA T.

Abstract (from CDS):

We present the results of optical spectroscopic identifications of a bright subsample of 2-10 keV hard X-ray-selected sources from the ASCA Medium Sensitivity Survey in the northern sky (AMSSn). The flux limit of the subsample is 3x10–13 erg/s/cm2 in the 2-10 keV band. All but one of the 87 hard X-ray-selected sources are optically identified, with AGNs (including broad-line AGNs, narrow-line AGNs, and three BL Lac objects), seven clusters of galaxies, and one galactic star. It is the largest complete sample of hard X-ray-selected AGNs at the bright flux limit. Amounts of absorption to their nuclei are estimated to be hydrogen column densities (NH) of up to ∼3x1023 cm–2 from their X-ray spectra. Optical properties of X-ray absorbed AGNs with NH>1x1022 cm–2 indicate the effects of dust absorption: at redshifts z<0.6, AGNs without broad Hβ emission lines have significantly larger NH-values than AGNs with broad Hβ emission lines. At z>0.6, the X-ray absorbed AGNs have a large hard X-ray to optical flux ratio (logf2–10keV/fR>+1). However, three X-ray absorbed z>0.6 AGNs show strong broad lines. In combination with hard X-ray-selected AGN samples from the ASCA Large Sky Survey, the ASCA Deep Survey in the Lockman Hole, and Chandra Deep Field North, the luminosity distributions of absorbed (NH>1x1022 cm–2) and less-absorbed (NH<1x1022 cm–2) AGNs are compared.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Diffuse Radiation - Galaxies: Active - Galaxies: Quasars: General - Surveys - X-Rays: Diffuse Background

VizieR on-line data: <Available at CDS (J/ApJS/148/275): table1.dat table2.dat table3.dat table4.dat>

Nomenclature: Table 1: [AUO2003] JHHMMSS.ss+DDMMSS.s N=132.

CDS comments: Table 1, col(2): Identification number AANN (AA = NO, NE, SE) represents the number of a source in three source lists used during the optical identification observations, not used in SIMBAD.

Simbad objects: 130

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Number of rows : 130
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 J00055919+2031403 * 00 05 59.1964143144 +20 31 40.391600052           K5 1 0
2 [VV96] J000559.9+203111 QSO 00 05 59.3953252584 +20 31 24.799549044   16.3 18.1     ~ 16 1
3 2MASS J00092458-0438305 AGN 00 09 24.6008517312 -04 38 30.293606580   19.3       ~ 6 0
4 [VV96] J001914.4+155556 QSO 00 19 14.4662520288 +15 55 56.010030024   18.51 18.31     ~ 39 0
5 [VV2006] J002618.7+105020 QSO 00 26 18.7017920928 +10 50 19.283726292   18.0       ~ 15 0
6 2MASX J00263332+1724534 AGN 00 26 33.3190748496 +17 24 53.364735252   15.9       ~ 7 0
7 LEDA 1532219 G 00 26 35.0783815368 +17 24 55.412085960           ~ 3 0
8 [AUO2003] J002639.45+172613.7 ? 00 26 39.45 +17 26 13.7           ~ 1 0
9 1AXG J010952-1252 BLL 01 09 50.9043044592 -12 53 22.379944452           ~ 6 0
10 QSO B0156+0333 QSO 01 58 38.8318799880 +03 47 44.019245436   16 16.9     ~ 22 0
11 QSO B0232-0400 QSO 02 35 19.4530216200 -03 47 14.564015448   17.89 17.89     ~ 24 0
12 [AUO2003] J033508.14-150454.0 * 03 35 08.14 -15 04 54.0           G 1 0
13 [VV2006] J033514.5-150607 QSO 03 35 14.4822457800 -15 06 06.495065532           ~ 4 0
14 [AUO2003] J033515.13-150525.7 ? 03 35 15.13 -15 05 25.7           ~ 1 0
15 2MASS J03351818-1506162 AGN 03 35 18.1860480048 -15 06 16.030172052   18.1   17.46   ~ 6 0
16 1AXG J035008-1149 AGN 03 50 05.4 -11 49 26           ~ 5 0
17 2MASS J03513564-1204090 AGN 03 51 35.6450059392 -12 04 08.988251880   17.6       ~ 5 0
18 [AUO2003] J041759.11+010051.9 * 04 17 59.11 +01 00 51.9           G 1 0
19 1AXG J041757+0101 AGN 04 17 59.2 +01 00 48           ~ 5 0
20 LEDA 3095690 Sy1 04 34 20.2123852872 -08 21 31.435450956   18.0       ~ 10 0
21 [AUO2003] J044746.05-062824.7 ? 04 47 46.05 -06 28 24.7           ~ 1 0
22 [AUO2003] J044748.33-062926.0 ? 04 47 48.33 -06 29 26.0           ~ 1 0
23 2MASS J04474860-0628131 AGN 04 47 48.6206159976 -06 28 13.067923584   18.4       ~ 12 0
24 3C 204 QSO 08 37 45.0013678200 +65 13 35.305376376   18.76 18.21     ~ 184 1
25 6C 0857+3907 QSO 09 00 53.7599900976 +38 56 15.646891092   20.8   18.09   ~ 37 1
26 ACO 744 ClG 09 07 20.0 +16 39 25           ~ 81 0
27 [VV2006] J102337.6+193626 QSO 10 23 37.5384934992 +19 36 25.941955140   18.8       ~ 7 0
28 2MASS J10393424+5330548 * 10 39 34.2578647392 +53 30 54.913199868           K 1 0
29 3XMM J103935.7+533038 Sy1 10 39 35.7548227656 +53 30 38.706930720   19.13 18.75     ~ 41 0
30 2MASS J10402683+2045442 AGN 10 40 26.8508879664 +20 45 44.414921736   19.73 19.69     ~ 14 0
31 [AUO2003] J104027.46+204553.8 G 10 40 27.46 +20 45 53.8           ~ 1 0
32 [AUO2003] J104027.50+204602.8 * 10 40 27.50 +20 46 02.8           M 1 0
33 [VV96] J105722.0-035126 QSO 10 57 22.2792474144 -03 51 32.029017012     18.47     ~ 12 0
34 SDSS J111431.83+405613.8 Sy2 11 14 31.8476630616 +40 56 13.816726764   18.8       ~ 15 0
35 2MASX J11152077+4043259 Sy1 11 15 20.7729922728 +40 43 25.763869416   18.61 18.02     ~ 32 0
36 [VV2000] J121325.0+293849 Sy1 12 13 25.5733415400 +29 38 52.055973852           ~ 15 0
37 [AUO2003] J121326.26+293846.9 H2G 12 13 26.26 +29 38 46.9           ~ 1 0
38 2XMM J121356.1+140431 Sy1 12 13 56.1934471464 +14 04 31.350795708   17.6       ~ 22 1
39 2MASX J12135796+1404014 LIN 12 13 58.0108934736 +14 04 01.083100260           ~ 8 0
40 2MASS J12142553+2936124 Sy2 12 14 25.5518279400 +29 36 12.655530360   17.85 17.63     ~ 28 0
41 Ton 605 HB* 12 16 53.6748432768 +30 04 08.692883544   16.110 15.98     B 223 0
42 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
43 [AUO2003] J121853.37+295921.2 H2G 12 18 53.37 +29 59 21.2           ~ 1 0
44 2MASS J12185468+2958067 Sy1 12 18 54.6852101520 +29 58 06.638486016   20.1 21     ~ 23 0
45 2MASX J12193086+0643348 Sy1 12 19 30.8715254328 +06 43 34.451456448   17.35 17.10     ~ 51 0
46 QSO J1219+7533 QSO 12 19 39.4425567456 +75 32 56.748008256   17.4 18.73     ~ 12 0
47 2QZ J122004.3-002540 Sy1 12 20 04.3746430800 -00 25 38.997437844   19.35 19.09     ~ 34 0
48 2MASS J12201843+0641196 Sy1 12 20 18.4414889616 +06 41 19.609635012   17.67 17.49     ~ 49 0
49 QSO B1218+7522 QSO 12 20 51.3020520480 +75 05 31.481225484     18.2 17.70   ~ 34 0
50 Mrk 205 BLL 12 21 44.0724099888 +75 18 38.241006228   15.64 15.24 14.7   ~ 492 0
51 1AXG J122155+7525 BLL 12 22 06.5665656120 +75 26 15.144120672     18.70 17.40   ~ 33 0
52 AK3 J122645.36-003715 ClG 12 26 44.92 -00 37 18.2   17.834   17.750   ~ 7 0
53 [AUO2003] J123602.99+261313.8 ? 12 36 02.99 +26 13 13.8           ~ 1 0
54 2E 2790 AGN 12 36 03.2 +26 13 07   21.7   19.50   ~ 7 0
55 QSO B1255+3559 QSO 12 57 30.2209952112 +35 43 20.174999736   18.61 18.56     ~ 34 0
56 2MASS J12580928+3519435 Sy1 12 58 09.3138230856 +35 19 43.015139616   19.16 18.83     ~ 36 0
57 [B68b] 194 QSO 12 58 29.7561604704 +35 28 43.655389536   18.36 17.96     ~ 75 1
58 [B68b] 286 QSO 13 04 02.7422601528 +35 33 16.791233508   19.25       ~ 37 0
59 2MASS J13044831+3548455 QSO 13 04 48.2985482088 +35 48 45.758408256   19.78 19.09     ~ 8 0
60 NGP9 F269-0783529 H2G 13 04 55.8055122360 +35 48 28.873570248           ~ 4 0
61 2MASS J13045773+3548426 * 13 04 57.7283053488 +35 48 42.834440232           G 1 0
62 2MASS J13111231+3229037 BiC 13 11 12.32 +32 29 03.8           ~ 3 0
63 ClG 1308.8+3244 ClG 13 11 12.7 +32 28 58     18.5     ~ 29 0
64 [AUO2003] J132310.26-165618.0 H2G 13 23 10.26 -16 56 18.0           ~ 1 0
65 UCAC4 366-062675 * 13 23 11.9727841248 -16 56 38.290425252   14.973 13.587 13.357   ~ 9 0
66 NVSS J132314-165527 rG 13 23 14.4643512648 -16 55 26.558126508           ~ 16 1
67 [AUO2003] J133938.15+273025.7 ? 13 39 38.15 +27 30 25.7           ~ 1 0
68 2MASS J13393860+2730339 Q? 13 39 38.6116727688 +27 30 33.974545572   21.0       ~ 3 0
69 [VV2006] J133939.1+273027 QSO 13 39 39.1425107736 +27 30 27.105030684   20.50 20.20     ~ 16 0
70 SDSS J134414.15+001642.2 BLL 13 44 14.1519406056 +00 16 42.207654324   20.03       ~ 15 1
71 MGC 50004 * 13 44 14.5051409088 +00 16 54.664701420   15.09       G 2 0
72 NVSS J134445+000529 rG 13 44 45.6092080152 +00 05 32.033957532           ~ 8 0
73 LEDA 1156796 Sy1 13 44 52.9085797968 +00 05 20.284259208   18.20 17.77     ~ 44 0
74 2MASS J13474183-1122164 AGN 13 47 41.8136325648 -11 22 16.418605836   16.5       ~ 6 0
75 2MASS J14052693+5055276 * 14 05 26.9572711224 +50 55 27.647574420   14.6       G 2 0
76 2MASS J14052766+5055465 Sy1 14 05 27.6813186072 +50 55 46.567638804   18.40 17.97     ~ 20 0
77 [AUO2003] J140527.99+505536.2 G 14 05 27.99 +50 55 36.2           ~ 1 0
78 LEDA 1669048 Sy1 14 05 28.4346047304 +22 23 33.237012228     16.5     ~ 22 0
79 2MASS J14052867+5056011 * 14 05 28.6941505968 +50 56 01.169971008   13.8       F 5 0
80 [AUO2003] J140528.82+505550.0 G 14 05 28.82 +50 55 50.0           ~ 1 0
81 [VV2006] J141239.3-120909 QSO 14 12 39.2488841256 -12 09 09.339948900   17.2       ~ 10 0
82 ACO 1885 ClG 14 13 43.73 +43 39 45.0           ~ 75 0
83 [VV2006] J141426.0-120840 QSO 14 14 25.9902422472 -12 08 39.744428640   18.8       ~ 6 0
84 [VV2006] J142352.4+224745 QSO 14 23 52.4587442131 +22 47 45.441157548   18.5   16.80   ~ 20 0
85 2MASX J14265265+2619246 Sy1 14 26 52.6663489944 +26 19 24.943728288   20.64 19.80     ~ 7 0
86 2MASS J14265507+2618318 LIN 14 26 55.0671064248 +26 18 31.935008664           ~ 6 0
87 2E 3315 Sy1 14 40 50.7670703328 +52 04 45.976599480   17.97 17.75     ~ 46 0
88 SDSS J144107.66+351946.5 G 14 41 07.6665340416 +35 19 46.558210836           ~ 3 0
89 2MASX J14410870+3519589 Sy1 14 41 08.6898850392 +35 19 58.758143736   17.29 16.83 16.52   ~ 19 0
90 2MASS J14425861+5209022 rG 14 42 58.6166693976 +52 09 02.107473804   19.4   17.59   ~ 7 0
91 2E 3321 * 14 43 00.3514799400 +52 09 38.187390816   15.56 14.03     M1.5Ve 7 0
92 [AUO2003] J144300.49+520859.9 G 14 43 00.49 +52 08 59.9           ~ 1 0
93 [AUO2003] J145022.20+185741.1 ClG 14 50 22.20 +18 57 41.1           ~ 2 0
94 87GB 150115.3+102756 BLL 15 03 39.5091473470 +10 16 03.598032797   17.6   16.56   ~ 19 1
95 QSO B1502+1041 Bla 15 04 24.97978391 +10 29 39.1985309   18.97 18.56 18.94   ~ 634 1
96 6C 150250+475325 QSO 15 04 31.2930006648 +47 41 51.264652128   18.95 18.67     ~ 46 1
97 ICRF J151443.0+365050 Sy1 15 14 43.0683049560 +36 50 50.355436776   17.11 17.01 15.83   ~ 422 1
98 2MASS J15152300+3639415 * 15 15 23.0239257408 +36 39 41.539807512           M 1 0
99 [AUO2003] J151524.79+364007.7 G 15 15 24.79 +36 40 07.7           ~ 1 0
100 SDSS J151525.21+364016.4 QSO 15 15 25.2187710144 +36 40 16.442154696       18.35   ~ 15 0
101 1AXG J155810+6401 AGN 15 58 10.4 +64 01 33           ~ 5 0
102 2XMM J160118.4+084357 AGN 16 01 18.436 +08 43 56.72       20.78   ~ 7 0
103 2MASS J16353956+3810029 AGN 16 35 39.5565284136 +38 10 03.104192964   19.3   17.66   ~ 6 0
104 2MASX J16365123+8207363 H2G 16 36 51.237 +82 07 36.34           ~ 6 0
105 2MASS J16365634+8207290 NIR 16 36 56.1136148352 +82 07 28.982188164           ~ 1 0
106 2MASX J16372720+8207072 AGN 16 37 27.1563796728 +82 07 07.352615676           ~ 8 0
107 2E 3765 ClG 16 41 11.0 +82 32 26           ~ 14 0
108 [AUO2003] J164117.11+823314.8 ? 16 41 17.11 +82 33 14.8           ~ 1 0
109 2MASS J17030647+4525573 QSO 17 03 06.4725281904 +45 25 57.266711004   17.44 17.13     ~ 12 0
110 LEDA 140722 Sy1 17 05 47.9881615896 +24 13 04.284466176   18.72 18.16     ~ 23 0
111 [AUO2003] J170731.63+235322.4 G 17 07 31.63 +23 53 22.4           ~ 1 0
112 1AXG J170730+2353 AGN 17 07 32.1 +23 53 41       19.67   ~ 6 0
113 [AUO2003] J171109.04+711229.5 * 17 11 09.04 +71 12 29.5           M 1 0
114 6C 171214+711429 QSO 17 11 32.6358474792 +71 11 06.035183664   19.97 19.49     ~ 13 1
115 [VV2006] J171806.0+672701 QSO 17 18 06.0380205168 +67 27 01.007981748   17.8       ~ 8 0
116 ZW I 187 BLL 17 28 18.6242294352 +50 13 10.469553996   16.55 15.97 12.95   ~ 396 1
117 [VV2006] J172935.5+523047 QSO 17 29 35.5304397528 +52 30 47.606129136   16.4       ~ 9 0
118 Z 322-13 Sy1 17 46 59.9434488120 +68 36 39.598284456   15.47 15.01     ~ 94 0
119 LEDA 60982 Sy2 17 49 50.7150571536 +68 23 09.344524128   16 14.07 4.96   ~ 24 0
120 2XMM J210736.6-051212 AGN 21 07 36.6 -05 12 14           ~ 6 0
121 ACO 2533 ClG 23 07 14.02 -15 13 26.0           ~ 31 0
122 2MASS J23073397-1526579 AGN 23 07 33.9274547760 -15 26 57.766987932   19.4       ~ 5 0
123 SDSS J232638.23+220600.9 QSO 23 26 38.2322079168 +22 06 00.887825340   18.6       ~ 12 0
124 [AUO2003] J232638.39+220555.3 * 23 26 38.39 +22 05 55.3           M 1 0
125 1AXG J233200+1945 AGN 23 31 58.8 +19 44 39           ~ 7 0
126 [AUO2003] J233250.56+151258.5 ? 23 32 50.56 +15 12 58.5           ~ 1 0
127 2MASX J23325447+1513055 Sy1 23 32 54.4667670696 +15 13 05.448863316   18.25 17.88     ~ 39 0
128 2MASX J23472126+0054246 AGN 23 47 21.2901325200 +00 54 24.375225636   19.5       ~ 10 0
129 HD 224168 PM* 23 55 41.5365773952 +25 08 39.184808676       8.5   G5 30 0
130 4C 28.59 BLL 23 55 54.2853293928 +28 35 57.938867880   18.1 17.8     ~ 64 1

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