2004MNRAS.351...83L

Query : 2004MNRAS.351...83L

2004MNRAS.351...83L - Mon. Not. R. Astron. Soc., 351, 83-100 (2004/June-2)

A physical classification scheme for blazars.

LANDT H., PADOVANI P., PERLMAN E.S. and GIOMMI P.

Abstract (from CDS):

Blazars are currently separated into BL Lacertae objects (BL Lacs) and flat spectrum radio quasars based on the strength of their emission lines. This is performed rather arbitrarily by defining a diagonal line in the Ca H&K break value-equivalent width plane, following Marchã et al. We readdress this problem and put the classification scheme for blazars on firm physical grounds. We study ∼100 blazars and radio galaxies from the Deep X-ray Radio Blazar Survey (DXRBS) and 2-Jy radio survey and find a significant bimodality for the narrow emission line [Oiii]λ5007. This suggests the presence of two physically distinct classes of radio-loud active galactic nuclei (AGN). We show that all radio-loud AGN, blazars and radio galaxies, can be effectively separated into weak- and strong-lined sources using the [Oiii]λ5007-[Oii]λ3727 equivalent width plane. This plane allows one to disentangle orientation effects from intrinsic variations in radio-loud AGN. Based on DXRBS, the strongly beamed sources of the new class of weak-lined radio-loud AGN are made up of BL Lacs at the ∼75 per cent level, whereas those of the strong-lined radio-loud AGN include mostly (∼97 per cent) quasars.

Abstract Copyright: 2004 RAS

Journal keyword(s): galaxies: active - BL Lacertae objects: general - quasars: emission lines

VizieR on-line data: <Available at CDS (J/MNRAS/351/83): table1.dat table2.dat table3.dat table4.dat>

CDS comments: p.97: 2Jy 1514+07 not identified

Simbad objects: 175

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Number of rows : 175
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] J001035.7-302748 Bla 00 10 35.74220770 -30 27 47.4189021   19.59 19.06 19.07   ~ 41 1
2 LEDA 897757 Bla 00 12 33.90624 -16 28 07.2192   17.57 17.7 15.95   ~ 21 2
3 1WGA J0023.6+0417 X 00 23 37.6 +04 17 02           ~ 1 0
4 [VV98] J002903.5+050934 Bla 00 29 03.5918457912 +05 09 34.864702740   20.0 19.0 18.6   ~ 51 1
5 2dFGRS TGS283Z129 BLL 00 32 33.0970812456 -28 49 20.390589480   18.723 18.80 17.242   ~ 52 1
6 PMN J0034-2134 rG 00 34 30.879 -21 33 52.21           ~ 11 1
7 LBQS 0040-2655 Bla 00 43 22.7339053152 -26 39 06.138736848   17.34   17.3   ~ 23 1
8 [VV2000] J010009.0-333730 BLL 01 00 09.39096799 -33 37 31.9378506   20.3   19.4   ~ 30 0
9 [VV98] J010644.1-103409 Bla 01 06 44.1578365704 -10 34 10.591142088   18.32 18.25 17.6   ~ 53 2
10 [VV98] J011035.5-164823 Bla 01 10 35.5114298400 -16 48 27.701645760     15.60 15.8   ~ 46 1
11 QSO B0112-0142 Bla 01 15 17.09995153 -01 27 04.5772562   17 17.235 17.81   ~ 233 1
12 QSO B0119+041 Bla 01 21 56.86169274 +04 22 24.7342932   19.2 19.5 19.40   ~ 200 1
13 [VV2006] J012615.0-050122 Bla 01 26 15.0628767384 -05 01 23.133157356     18.30     ~ 9 0
14 PMN J0136-4044 Bla 01 36 02.8566159840 -40 44 50.288170992     20.7 19.42   ~ 23 1
15 [VV98] J014319.2-681326 Bla 01 43 19.2448253832 -68 13 27.452537436     21.20 19   ~ 11 0
16 4C 15.05 Bla 02 04 50.41389294 +15 14 11.0436097   21.9 21.00 21.00   ~ 426 1
17 1WGA J0211.9-7351 X 02 11 57.8 -73 51 21           ~ 1 0
18 [VV98] J021745.1-734723 Bla 02 17 45.1269856608 -73 47 23.263136700     19.00 19.5   ~ 18 1
19 2MASX J02451349+1047230 BLL 02 45 13.4738487648 +10 47 22.850288988     16.50 12   ~ 24 0
20 1WGA J0247.9+1845 X 02 47 56.7 +18 45 14           ~ 1 0
21 [VV2006] J025154.9-205148 BLL 02 51 54.9930078816 -20 51 48.333281724     18.50     ~ 8 1
22 1WGA J0253.3+0006 X 02 53 19.8 +00 06 45           ~ 1 0
23 QSO B0257-510 Bla 02 58 38.74798 -50 52 04.3848     20.0 21.8   ~ 22 1
24 1WGA J0259.4+1926 QSO 02 59 26.3 +19 26 24           ~ 3 0
25 US 3621 Bla 03 04 58.9750802088 +00 02 35.750540328   18.23 18.06 18.4   ~ 56 1
26 PMN J0307-4717 rG 03 07 39.93 -47 17 43.0     23.2     ~ 7 1
27 1WGA J0312.3-6610 X 03 12 19.0 -66 10 29           ~ 2 0
28 ICRF J031357.6+411523 BLL 03 13 57.64573391 +41 15 23.9728461   17.3 17.00 10.4   ~ 38 0
29 [VV98] J031422.4-654825 Bla 03 14 22.4448717096 -65 48 24.701433228     19.00     ~ 27 1
30 1WGA J0321.6-6641 X 03 21 39.5 -66 41 45           ~ 1 0
31 1RXS J032208.6-520536 Bla 03 22 08.2465383699 -52 05 35.096037649       17.4   ~ 13 0
32 [VV98] J032212.4-504233 BLL 03 22 12.4593813971 -50 42 33.018946576     18.20 18.6   ~ 16 0
33 1WGA J0322.6-1335 Bla 03 22 38.48740320 -13 35 18.0637440       22   ~ 14 1
34 6dFGS gJ032502.5-492705 QSO 03 25 02.5460774712 -49 27 04.588152480   18.65 19.2 17.61   ~ 12 1
35 1WGA J0355.6-1026 X 03 55 41.0 -10 26 45           ~ 1 0
36 [VV98] J035736.8-415858 Bla 03 57 36.7805649048 -41 59 01.440091680     20.90 15.4   ~ 16 1
37 [VV98] J041059.5-163611 Bla 04 10 59.4576058512 -16 36 10.594788552     16.70 16.8   ~ 21 1
38 [VV98c] J041403.1-130637 QSO 04 14 03.0 -13 07 12     22.0     ~ 4 0
39 [VV98] J041405.9-122417 BLL 04 14 05.9299170408 -12 24 19.044457380     18.30     ~ 9 1
40 [VV2006] J042714.2-075623 Bla 04 27 14.2364706168 -07 56 24.973397448     21.00 17.9   ~ 13 1
41 2MASX J04285086-3805503 BLL 04 28 50.8440888600 -38 05 50.439578784     18.90 15.6   ~ 13 0
42 QSO J0431+1731 BLL 04 31 57.37923719 +17 31 35.7751096       21.3   ~ 54 1
43 AT20G J043508-081102 Bla 04 35 08.3618469696 -08 11 02.767065648     21.1 19.5   ~ 16 1
44 1WGA J0441.8-4306 X 04 41 53.9 -43 06 21           ~ 2 0
45 [VV98] J044754.6-032241 Bla 04 47 54.7361835696 -03 22 42.262778604     15.94 15.4   ~ 31 0
46 1WGA J0448.6-2203 X 04 48 36.9 -22 03 41           ~ 2 0
47 LEDA 2824189 Sy2 05 00 05.4559487985 -30 41 07.159047921     19.4     ~ 8 1
48 QSO B0507+179 Bla 05 10 02.36912937 +18 00 41.5815635   20.0 19.0 19.09   ~ 470 1
49 QSO B0514-459 Bla 05 15 45.2501347656 -45 56 43.198786536   18.18 17.5 17.31   ~ 132 1
50 4C 06.22 QSO 05 18 15.9406797792 +06 24 22.717790316     19.00     ~ 15 1
51 2MASS J05283471-5820180 BLL 05 28 34.6838447592 -58 20 18.332413512     19.20 16.3   ~ 14 1
52 1RXS J053340.7-463226 BLL 05 33 40.83561 -46 32 15.1748       19.2   ~ 10 1
53 [VV2006] J053345.3-581802 QSO 05 33 45.3406079592 -58 18 02.538154008     19.5     ~ 6 0
54 [VV98] J053512.2-023906 Bla 05 35 12.2702051280 -02 39 06.718713804     18.70 18.5   ~ 17 1
55 AT20G J053905-342712 Bla 05 39 05.43414 -34 27 13.0284     19.9 19.5   ~ 15 1
56 [VV98] J054641.8-641522 Bla 05 46 41.8381012440 -64 15 21.934341504     18.00 15.33   ~ 54 1
57 2MASX J05581173+5328180 BLL 05 58 11.7979161624 +53 28 17.886566748     14.00 11.1   ~ 24 2
58 [VV98] J060031.4-393702 Bla 06 00 31.4178969552 -39 37 02.189197848   18.85 18.60 18.9   ~ 59 1
59 1WGA J0605.8-7556 X 06 05 51.2 -75 56 37           ~ 1 0
60 2MASS J06244505-3230554 BLL 06 24 45.0511094472 -32 30 55.383737868     19.70 19.7   ~ 16 0
61 QSO J0631-5405 Bla 06 32 01.1618672256 -54 04 57.471904236   18.15 18.7 17.06   ~ 36 0
62 8C 0641+681 QSO 06 46 42.2187808320 +68 07 41.705969448     19.70     ~ 10 1
63 [VV98] J064813.4-434715 Bla 06 48 13.4237077968 -43 47 15.498800952     18.30     ~ 17 1
64 QSO J0724-0715 Bla 07 24 17.29262676 -07 15 20.3524062     18.00     ~ 38 1
65 7C 074143.50+292721.00 Bla 07 44 51.3643230792 +29 20 06.038217348   17.20 16.97 16.4   ~ 56 1
66 [VV2006] J074705.0-674440 Bla 07 47 04.8266823456 -67 44 40.190318664     19.70     ~ 10 0
67 [VV98] J074812.7-525832 Bla 07 48 12.6732716976 -52 58 31.760987448     18.40 17.98   ~ 22 1
68 6C 074318+742809 Bla 07 49 22.45672374 +74 20 41.5926093   14.4 19.3 19.28   ~ 56 1
69 [VV98] J075059.5-672623 Bla 07 50 59.5352151384 -67 26 22.596823392     17.70 17.9   ~ 12 1
70 2MASX J08160416-0736000 BLL 08 16 04.1918724816 -07 35 59.734261968     16.10     ~ 23 0
71 BWE 0826+0908 Bla 08 29 30.3184983324 +08 58 21.292947420     21.5     ~ 47 1
72 RX J0847.2+1133 BLL 08 47 12.9303893448 +11 33 50.153057640       16.6   ~ 121 1
73 4C 58.17 Bla 08 54 41.99641612 +57 57 29.9391251   18.56 18.18 17.43   ~ 249 1
74 [VV98] J090015.4-281758 QSO 09 00 15.3028571880 -28 17 58.499989980     18.90     ~ 19 1
75 6C 085940+470301 Bla 09 03 03.99010563 +46 51 04.1374172   19.90 19.44 18.7   ~ 285 1
76 6C 090447+504314 QSO 09 08 16.7994564720 +50 31 05.700522684     20.80     ~ 19 1
77 PSO J141.9456-09.0060 Bla 09 27 46.9446778508 -09 00 21.830998555     21.3 19   ~ 15 1
78 6C 092828+554656 Sy1 09 32 00.0782152656 +55 33 47.378442240   17.81 17.57     ~ 52 1
79 5C 1.33 Bla 09 37 12.32736501 +50 08 52.0975584   19.51 18.94 18.88   ~ 158 1
80 NVSS J095427-050331 Bla 09 54 27.35680080 -05 03 32.1033960       21   ~ 3 0
81 4C 55.17 Bla 09 57 38.1839604096 +55 22 57.754950636   18.24 17.89     ~ 459 1
82 7C 100102.1+325841 Bla 10 03 57.5656 +32 44 03.503   19.27 19.10 18.9   ~ 57 1
83 7C 1003+3251 QSO 10 06 07.7136853488 +32 36 26.110343844   18.3 19.05 18.3   ~ 45 1
84 [VV2006] J100637.6+050954 Bla 10 06 37.61073133 +05 09 53.9787336     21.70 20.1   ~ 28 1
85 LAMOST J101051.62-020225.9 QSO 10 10 51.6262860240 -02 02 25.920376908   19.1   19.2   ~ 10 0
86 [VV98] J101130.2-042328 Bla 10 11 30.2399259480 -04 23 27.705939108   18.2 18.5 18.1   ~ 33 1
87 [VV98] J102556.4+125349 Bla 10 25 56.28536956 +12 53 49.0219212   19.5 18.5 18.96   ~ 60 1
88 8C 1022+680 Bla 10 26 33.8428529208 +67 46 12.114188364   15.0   18.1   ~ 23 1
89 SDSS J102834.03-023659.6 Bla 10 28 34.0418775360 -02 36 59.725248372   19.78 19.05 19.6   ~ 60 1
90 6C 102716+745713 BLL 10 31 22.0246130736 +74 41 58.344586116     17.2 13.6   ~ 97 1
91 [VV98] J103206.3-140020 Bla 10 32 06.22678007 -14 00 19.4685695     18.80 18   ~ 33 1
92 6C 103155+570828 Bla 10 35 06.0262028352 +56 52 57.982964808   20.33 20.20 19.4   ~ 38 1
93 4C 62.15 Bla 11 01 53.4510001968 +62 41 50.602765344     17.90 17.9   ~ 64 1
94 7C 110150.60+605503.00 Bla 11 04 53.69464120 +60 38 55.3145580   19.92 19.59 19.2   ~ 59 1
95 [VV2006] J110519.2-181312 Bla 11 05 19.1130524328 -18 13 13.490914512     18.50 19.1   ~ 10 0
96 [VV98] J111236.8-374545 Bla 11 12 36.8055903264 -37 45 45.205378164     18.30 17.4   ~ 13 0
97 7C 111734.00+591231.00 Sy2 11 20 27.4856013096 +58 56 13.379168292   19.32 18.52     ~ 20 1
98 ICRF J120416.6-071009 BLL 12 04 16.6649997552 -07 10 09.006821616   18.01 18.00 14.6   ~ 84 1
99 [VV2006] J120619.7+282253 Bla 12 06 19.6448265096 +28 22 54.637344228   19.47 19.25 19.2   ~ 36 1
100 SDSS J121314.82+144400.6 Bla 12 13 14.8178973480 +14 44 00.570477624   19.95 19.63 19.8   ~ 27 0
101 7C 121437.50+294208.00 Bla 12 17 08.0319 +29 25 33.231   19.60 19.21 20.8   ~ 16 1
102 BWE 1220+2951 Bla 12 22 43.1998972896 +29 34 41.520929196   19.02 18.78 19   ~ 34 1
103 [VV2006] J122354.7+065002 Bla 12 23 54.62431532 +06 50 02.5721111   20.23 19.68 20   ~ 37 1
104 [VV2006] J122531.1+071552 QSO 12 25 31.2372319944 +07 15 53.316591732   20.24 19.65     ~ 11 1
105 1WGA J1229.4+2712 X 12 29 29.0 +27 12 22           ~ 1 0
106 ICRF J122934.2+271156 Sy1 12 29 34.24797092 +27 11 56.3777623     13.1     ~ 23 1
107 QSO J1300-3253 Bla 13 00 42.4259780568 -32 53 12.114395844     18.70 18   ~ 88 1
108 1WGA J1306.6-2428 Bla 13 06 40.3 -24 28 45           ~ 2 0
109 2MASX J13111781-0521201 BLL 13 11 17.8333730904 -05 21 19.956414348     18.70     ~ 13 1
110 [VV2006] J131403.4-330355 Bla 13 14 03.5587377336 -33 03 55.025994744     19.30 18.1   ~ 16 0
111 7C 131254.10+285602.00 Bla 13 15 13.4927 +28 40 53.680   20.05 19.84 19.8   ~ 29 1
112 [VV98] J132026.8+014037 Bla 13 20 26.79487794 +01 40 36.8115680   21.01 20.28 20.5   ~ 54 1
113 QSO J1324-3623 Bla 13 24 03.5627020968 -36 23 35.647106712   18.77 16.60 17.54   ~ 20 1
114 7C 133039.60+473739.00 Bla 13 32 45.24642464 +47 22 22.6677558   18.34 17.94 18.57   ~ 147 1
115 AT20G J135316-472055 Sy1 13 53 16.70 -47 20 55.7           ~ 10 1
116 ICRF J135938.0+401138 Bla 13 59 38.09426177 +40 11 38.2506777     19.2 17.00   ~ 69 1
117 6C 140206+342744 BLL 14 04 16.8232088688 +34 13 17.174807400   19.51 19.23     ~ 31 1
118 [VV98] J141628.6+124214 Bla 14 16 28.6564478472 +12 42 13.572936432   17.72 17.54 17.2   ~ 63 1
119 LEDA 2827947 BLL 14 20 40.8687973128 +06 50 59.514502020   20.08 19.20     ~ 30 1
120 6C 142128+484348 QSO 14 23 17.9969979000 +48 30 15.737903784   18.80 18.56     ~ 33 1
121 [VV2006] J142758.8+324739 QSO 14 27 58.7263614216 +32 47 41.472982176   18.50 18.43 18.37 17.67 ~ 45 1
122 6C 144043+524847 QSO 14 42 19.5309 +52 36 20.855   20.52 20.58     ~ 13 1
123 [VV2006] J150637.2-400759 Bla 15 06 37.1954998680 -40 07 57.106728876     19.60 17.7   ~ 15 1
124 [VV2006] J150935.7-434032 Bla 15 09 35.7376254432 -43 40 31.904879376     19.20 18.9   ~ 42 1
125 7C 152336.70+421145.00 BLL 15 25 23.5523439552 +42 01 17.031554364   18.74 18.22 17.24   ~ 39 1
126 [VV2006] J154343.8+184720 Bla 15 43 43.8039630528 +18 47 19.767814188   19.78 19.24 19.5   ~ 30 1
127 [VV2006] J160605.9+203208 Bla 16 06 05.81937 +20 32 08.3680     18.30     ~ 19 1
128 ICRF J161021.8-395858 Bla 16 10 21.87909104 -39 58 58.3294463       18.5   ~ 103 1
129 6C 162542+581549 QSO 16 26 37.2369813840 +58 09 17.667263052   16.2 16.37 16.5   ~ 39 1
130 87GB 162737.7+212336 QSO 16 29 47.541 +21 17 18.12   19.67 19.31     ~ 11 1
131 4C 38.41 Bla 16 35 15.49297809 +38 08 04.5005995   18.14 17.97 17.25   ~ 906 1
132 6C 163718+572618 Bla 16 38 13.45629995 +57 20 23.9789828     16.90 16.94   ~ 381 1
133 6C 163852+395305 Bla 16 40 29.63277140 +39 46 46.0284071   18.4 19.37 18.75   ~ 336 2
134 3C 345 Bla 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1808 3
135 6C 164650+410912 Bla 16 48 29.25803616 +41 04 05.5525848   19.18 18.90 19   ~ 67 1
136 [VV98] J165639.7+532149 Bla 16 56 39.6301 +53 21 48.760     19.20 19.4   ~ 38 1
137 1WGA J1656.6+6012 X 16 56 41.7 +60 12 07           ~ 2 0
138 7C 172024.60+310607.00 BLL 17 22 18.9606539616 +31 03 23.897445804   20.90 20.19     ~ 12 1
139 QSO B1725+044 Bla 17 28 24.95272284 +04 27 04.9138307   17.43 16.99 16.24   ~ 245 1
140 NVSS J174420-051841 BLL 17 44 20.87671 -05 18 40.7261       21.6   ~ 7 1
141 87GB 180232.0+175507 BLL 18 04 42.5470057440 +17 55 58.872827712       17.6   ~ 16 1
142 Z 340-35 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 909 1
143 ICRF J180813.8-501153 Bla 18 08 13.83558848 -50 11 53.6107498       18.97   ~ 54 3
144 [VV2006] J182608.1-365040 BLL 18 26 08.13490705 -36 50 49.7261142     18.80 18.8   ~ 38 2
145 QSO B1823-455 Bla 18 27 10.2379158768 -45 33 09.964295820   17.3   17.24   ~ 34 1
146 SUMSS J183415-594848 BLL 18 34 15.3907843802 -59 48 47.368307583       18.6   ~ 9 1
147 1WGA J1835.5-6539 X 18 35 31.2 -65 39 35           ~ 1 0
148 6C 183958+544904 BLL 18 40 57.37670714 +54 52 15.9106743     19.40 19.5   ~ 33 1
149 [VV2006] J191154.1-210244 Bla 19 11 53.9382469416 -21 02 43.797069420     17.00 17.9   ~ 32 1
150 PMN J1936-4719 BLL 19 36 56.1055840632 -47 19 50.258710776   18.91   17.38   ~ 62 1
151 PMN J1938-4657 Bla 19 38 26.33 -46 57 25.5       21   ~ 10 1
152 PMN J2056-5820 rG 20 56 30.5650975368 -58 20 07.540259784           ~ 8 1
153 QSO B2059+034 Bla 21 01 38.83415344 +03 41 31.3207714   18.13 17.78 17.68   ~ 176 1
154 QSO B2058-425 QSO 21 01 59.1137330928 -42 19 16.165821072   17.56 17.20     ~ 54 1
155 [VV2006] J210949.9-133246 Bla 21 09 49.7753730264 -13 32 45.602888100     19.30 17.2   ~ 16 1
156 1WGA J2131.9-0556 X 21 31 55.9 -05 56 30           ~ 1 0
157 1WGA J2154.1-1502 X 21 54 09.9 -15 02 13           ~ 2 0
158 PMN J2157+0649 BLL 21 57 43.2437338088 +06 49 21.391989588       17.7   ~ 16 1
159 PMN J2201-5646 Bla 22 01 38.2580637036 -56 46 31.229442164           ~ 10 1
160 1WGA J2205.2-0004 X 22 05 13.6 -00 04 01           ~ 1 0
161 OHIO Y 106 Rad 22 06 15.1 +15 29 45           ~ 3 0
162 2MASS J22394683-0631505 BLL 22 39 46.8373060992 -06 31 50.586378744           ~ 11 0
163 PMN J2258-5526 BLL 22 58 18.9908859024 -55 25 37.397815356           ~ 61 1
164 1WGA J2303.5-5126 X 23 03 30.3 -51 26 31           ~ 1 0
165 PKS J2304-3625 Bla 23 04 55.99771 -36 25 12.4796           ~ 14 1
166 [VV2006] J232038.0+003138 Bla 23 20 37.9916312304 +00 31 39.713608848   20.03 19.70 18.8   ~ 44 1
167 [VV98] J232202.6+211356 Bla 23 22 02.6049131232 +21 13 56.539815600     16.96 17   ~ 28 2
168 [VV2006] J232905.8+083414 Bla 23 29 05.78674920 +08 34 15.8542268     20.50 19.01   ~ 44 1
169 ICRF J233035.7-372437 BLL 23 30 35.7956273400 -37 24 37.963132200   18.54 16.60 17.39   ~ 55 1
170 [VV98] J233316.7-013107 Bla 23 33 16.68837896 -01 31 07.3862694     19.60 18.7   ~ 37 1
171 4C 09.74 Bla 23 46 36.8384562240 +09 30 45.514903032   16.23 15.97 15.99   ~ 332 2
172 LAMOST J234738.15+085246.4 Sy1 23 47 38.1538043712 +08 52 46.412302656   18 17.10     ~ 23 1
173 1WGA J2349.9-2552 X 23 49 59.6 -25 52 30           ~ 2 0
174 SDSS J235405.55-095749.0 Bla 23 54 05.55389 -09 57 49.0373       20.1   ~ 24 1
175 QSO J2355-3357 Bla 23 55 25.7961480408 -33 57 55.218632328   18.32 16.4 17.10   ~ 61 1

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