1995A&AS..109..267G


Query : 1995A&AS..109..267G

1995A&AS..109..267G - Astron. Astrophys., Suppl. Ser., 109, 267-291 (1995/February-0)

Radio to X-ray energy distribution of BL Lacertae objects.

GIOMMI P., ANSARI S.G. and MICOL A.

Abstract (from CDS):

We present multifrequency spectra of a large number of radio and X-ray selected BL Lacertae objects constructed using non-simultaneous archival data. The data were obtained using the European Space Information System (ESIS) and are from several radio and optical catalogues, the IRAS Faint Source Catalogue, the Einstein and the EXOSAT databases. The sample includes 121 BL Lacs that have been extracted from the 1Jy and the S4 radio surveys (Stickel et al. 1991; Stickel & Kuehr 1994), the Einstein IPC Slew Survey, the Einstein Extended Medium Sensitivity Survey (EMSS), the EXOSAT High Galactic Latitude Survey, and from the compilations of Giommi et al. (1990), and Veron & Veron (1993). We find that the shape of the radio to infra-red spectrum of Radio Selected and X-ray Selected BL Lacs is very similar. The difference between these two classes of objects is instead evident in the optical/X-ray part of the spectrum. The classical radio discovered BL Lacs are characterized by an energy spectrum with a sharp cutoff in the IR/optical band while in most of the X-ray discovered objects the turnover is located near the UV/X-ray band or at higher frequencies. For a given X-ray flux this diversity can give rise to radio fluxes different by a factor of 100 or more. We argue that BL Lac objects may be a single population of sources characterized by a wide range of energy cutoffs. In this scenario BL Lacs discovered in radio surveys are representative of the entire population, while objects characterized by an energy break near the X-ray band, which are abundantly detected at X-ray frequencies, are intrinsically a small minority.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects: general - radio continuum: galaxies - X-ray: galaxies

VizieR on-line data: <Available at CDS (J/A+AS/109/267): table1 table2 table3 table4 table5>

Simbad objects: 124

goto View the references in ADS

Number of rows : 124
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 87GB 004429.9+200105 AGN 00 47 09.8020185216 +20 17 29.415119496   18.0       ~ 7 1
2 QSO B0048-09 BLL 00 50 41.3172421464 -09 29 05.210474100 16.74 16.39 16.22 16.14   ~ 434 2
3 QSO B0109+224 BLL 01 12 05.8247044608 +22 44 38.785880796   16.00 15.66 15.47   ~ 316 2
4 QSO B0118-272 BLL 01 20 31.6628068344 -27 01 24.636341064   15.89 15.56 15.49   ~ 253 1
5 QSO B0122+09 BLL 01 24 44.5398641328 +09 18 49.289559588     19.98 18.5   ~ 57 0
6 QSO B0138-097 BLL 01 41 25.8320610024 -09 28 43.676872212   16.94 16.55 17.21   ~ 254 3
7 QSO B0158+001 BLL 02 01 06.1794930072 +00 34 00.135789564   18.99 18.42 18   ~ 97 0
8 QSO B0205+350 BLL 02 08 38.1634090056 +35 23 12.806970864     19.24 18.8   ~ 96 0
9 QSO B0218+357 QSO 02 21 05.4920852208 +35 56 13.848581904   20.0 20.0 19.60   ~ 530 3
10 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 844 1
11 QSO B0229+200 BLL 02 32 48.6148874688 +20 17 17.486717388   18.0 18.00     ~ 290 3
12 QSO B0235+1624 BLL 02 38 38.9300958576 +16 36 59.276150136   16.46 15.50 15.92   ~ 1457 2
13 QSO B0257+34 BLL 03 01 03.7549027896 +34 41 01.078942128     18.53     ~ 63 0
14 4C 47.08 BLL 03 03 35.2422414360 +47 16 16.276532592   17.54 16.95 16.2   ~ 254 1
15 QSO B0306+101 QSO 03 09 03.6232590528 +10 29 16.338746292   18.45   19.91   ~ 172 1
16 QSO B0317+18 BLL 03 19 51.8082475320 +18 45 34.562475432     18.12     ~ 197 0
17 QSO B0323+022 BLL 03 26 13.9481827296 +02 25 14.675937708   17.05 16.55 15.3   ~ 230 1
18 QSO B0331-362 BLL 03 33 12.2677895088 -36 19 46.662911112   19.94 18.0 17.99   ~ 59 0
19 QSO B0338-214 BLL 03 40 35.6080502592 -21 19 31.171870308   16.04 17.1 17.07   ~ 157 1
20 QSO B0347-121 BLL 03 49 23.1862105584 -11 59 27.366035532   18.74 18.2 17.46   ~ 204 0
21 QSO B0350-3712 BLL 03 51 54.5527158480 -37 03 44.193747492     17.0 16.4   ~ 41 0
22 QSO B0414+009 BLL 04 16 52.4945693352 +01 05 23.899102620   16.86 16.38 16   ~ 263 0
23 QSO B0419+19 BLL 04 22 18.6125654952 +19 50 46.908625740       18.6   ~ 75 0
24 WISEA J042840.41-375619.3 BLL 04 28 40.4241894720 -37 56 19.580735832   18.96 19.0 17.21   ~ 273 1
25 QSO B0502+675 BLL 05 07 56.1631660632 +67 37 24.225299292     17.0 17.2   ~ 159 1
26 QSO B0454+844 BLL 05 08 42.3628147248 +84 32 04.544402964     16.5 18.95   ~ 235 1
27 QSO B0506-039 BLL 05 09 38.1791014104 -04 00 45.682814376   19.10 19.0 17.92   ~ 64 0
28 QSO B0521-365 BLL 05 22 57.9841341216 -36 27 30.847204512   15.26 14.62 14.48   ~ 782 2
29 QSO B0537-441 BLL 05 38 50.3617339512 -44 05 08.940591924   15.77 16.48 16   ~ 839 2
30 QSO B0548-322 BLL 05 50 40.5705144672 -32 16 16.484718648   16.07 15.5     ~ 386 1
31 2MASS J05580642-3838315 BLL 05 58 06.4316057352 -38 38 31.590709152   17.50 17.1     ~ 69 0
32 QSO B0607+710 BLL 06 13 43.3821991056 +71 07 26.779488276   19.6 19.61 19.1   ~ 81 1
33 QSO B0647+250 BLL 06 50 46.4900658984 +25 02 59.625654828 16.17 15.97 15.79 16.3   ~ 133 2
34 6C 070609+591309 BLL 07 10 30.0683697888 +59 08 20.371772544   17.38 16.52 15.1   ~ 202 2
35 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 14.17 14.27   ~ 1223 1
36 QSO J0738+1742 BLL 07 38 07.3935719136 +17 42 18.998218764   16.76 16.22 15.78   ~ 945 1
37 QSO B0737+744 BLL 07 44 05.3750968872 +74 33 58.256429832     16.89 16.6   ~ 124 0
38 4C 54.15 BLL 07 53 01.3847860272 +53 52 59.640135276   18.5   16.77   ~ 138 1
39 QSO B0754+10 BLL 07 57 06.6427726320 +09 56 34.848603888   15.43 15.00 15.99   ~ 419 1
40 7C 080602.89+522749.00 BLL 08 09 49.1868285744 +52 18 58.249938744   16.11 15.59 14.6   ~ 250 2
41 [VV2006] J081421.2+294020 BLL 08 14 21.2670075288 +29 40 20.968903632   19.17 18.82     ~ 33 0
42 7C 081451.89+423206.00 BLL 08 18 15.9997819800 +42 22 45.414412572   18.88 18.18 17.81   ~ 372 1
43 QSO B0818-128 BLL 08 20 57.4483468704 -12 58 59.176280532   15.30 15.00 16.5   ~ 166 1
44 4C 22.21 BLL 08 23 24.7592164368 +22 23 03.287299236   20.22 19.57 19.7   ~ 173 1
45 QSO B0823+033 BLL 08 25 50.3384535600 +03 09 24.523229736   17.81 17.23 16.91   ~ 307 1
46 6C 082850+492334 BLL 08 32 23.2169864376 +49 13 21.037493424   20.17 19.63     ~ 157 1
47 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2190 1
48 7C 092302.70+745857.00 BLL 09 28 02.9215998024 +74 47 19.291770312   19.8 19.74 19.2   ~ 49 1
49 QSO B0950+49 BLL 09 54 09.8719327752 +49 14 59.557692012   19.33 19.10 19.5   ~ 64 0
50 6C 095456+654857 BLL 09 58 47.2451872176 +65 33 54.819354600     17.0 15.75   ~ 662 1
51 QSO B0958+210 BLL 10 01 42.4110018648 +20 48 18.289244880     19.84 18.6   ~ 33 0
52 2MASS J10065644+3454453 BLL 10 06 56.4721611528 +34 54 45.192297024   19.48 19.03 18.2   ~ 45 0
53 QSO B1010+495 QSO 10 13 29.9328506424 +49 18 40.968485316   19.27 19.10     ~ 59 1
54 6C 101157+494057 BLL 10 15 04.1396533776 +49 26 00.706055496   16.56 16.15 14.58   ~ 331 2
55 QSO B1028+511 BLL 10 31 18.5251007784 +50 53 35.817278064   17.25 16.98 16.3   ~ 174 1
56 MC4 1057+10.0 Rad 11 00 +09.7           ~ 1 0
57 QSO J1103-2329 BLL 11 03 37.6150845072 -23 29 31.203773520   17.00 16.55 16.61   ~ 348 2
58 Mrk 421 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2540 1
59 87GB 111803.1+422817 BLL 11 20 48.0624161160 +42 12 12.465387612   17.55 17.11 16.9   ~ 109 1
60 QSO B1133+16 BLL 11 36 17.5377147576 +16 01 52.252739544     20.04 19.5   ~ 39 0
61 6C 113337+702604 BLL 11 36 26.4090783600 +70 09 27.309071232   15.16 14.49 10.51   ~ 339 1
62 QSO B1144-3755 BLL 11 47 01.3709028048 -38 12 11.024763516   19.03 16.2 16.72   ~ 278 1
63 7C 1147+2434 BLL 11 50 19.2122083392 +24 17 53.834712576   16.26 15.74 15.80   ~ 260 1
64 QSO B1207+39 BLL 12 10 26.5907045256 +39 29 08.635546104   20.77 20.3 19.9   ~ 110 0
65 Ton 605 HB* 12 16 53.6748432768 +30 04 08.692883544   16.110 15.98     B 221 0
66 6C 121520+302351 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   ~ 438 1
67 QSO B1218+304 BLL 12 21 21.9426947832 +30 10 37.158534012   16.50 15.85 15.7   ~ 431 1
68 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 818 1
69 QSO B1221+24 BLL 12 24 24.1862962656 +24 36 23.499792828   17.93 17.37     ~ 130 0
70 QSO B1229+6430 BLL 12 31 31.3949261640 +64 14 18.280701600   18.36 17.62 14.3   ~ 132 2
71 QSO B1235+632 BLL 12 37 39.0753390528 +62 58 42.801146328   18.89 18.25 17   ~ 103 0
72 QSO B1256+01 BLL 12 58 54.6063816432 +01 34 41.521658700   20.51 20.02 20   ~ 20 0
73 2E 2941 BLL 13 00 17.5450019256 +63 44 40.131627252   21.25 20.74 19.5   ~ 22 1
74 7C 1308+3236 BLL 13 10 28.6639899312 +32 20 43.774028664   15.61 15.24 17.91   ~ 806 1
75 2MASX J13150336-4236500 BLL 13 15 03.3912307368 -42 36 49.760844084   18.07 16.6 16.59   ~ 93 0
76 4FGL J1335.3-2949 BLL 13 35 29.7518919576 -29 50 38.921848188   18.13 19.1 19.25   ~ 53 0
77 4C 16.39 BLL 14 02 44.5145118408 +15 59 56.654415816   17.20 16.74 15.5   ~ 143 2
78 QSO B1402+04 BLL 14 04 50.9113762032 +04 02 02.209070292   16.93 16.61     ~ 127 0
79 QSO B1407+59 BLL 14 09 23.4933928320 +59 39 40.624242444   19.60 19.05     ~ 80 0
80 QSO B1413+135 BLL 14 15 58.81750938 +13 20 23.7129069   21.055 20.000 18.461   ~ 405 1
81 7C 1415+2556 BLL 14 17 56.6706279264 +25 43 26.244368868   18.00 17.2 14.6   ~ 163 0
82 6C 141804+543700 BLL 14 19 46.5974051952 +54 23 14.787857796   16.17 15.65 14.16   ~ 562 1
83 QSO B1426+428 BLL 14 28 32.6090008440 +42 40 21.048123396   16.95 16.45 14.4   ~ 482 2
84 QSO B1440+122 BLL 14 42 48.2771008152 +12 00 40.348597716   18.34 17.63 15.2   ~ 153 2
85 2E 3328 BLL 14 44 34.9068259224 +63 36 05.984137260   20.76 19.67 18.6   ~ 62 0
86 QSO B1458+22 BLL 15 01 01.8350446584 +22 38 06.373155444   16.29 15.79     ~ 119 0
87 QSO B1514-24 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 704 3
88 QSO B1517+656 BLL 15 17 47.5882526184 +65 25 23.285593704     15.9 16.7   ~ 111 1
89 QSO B1519-273 BLL 15 22 37.6759581696 -27 30 10.784438784   18.72 18.5 17.42   ~ 273 1
90 QSO B1534+01 BLL 15 36 46.7546783544 +01 38 00.077346276     18.70     ~ 71 0
91 7C 154416.89+820431.00 BLL 15 40 15.8786533752 +81 55 05.781420660     17.6 15.8   ~ 73 1
92 4C 14.60 BLL 15 40 49.4896705848 +14 47 45.909368088   17.72 17.30 17.240   ~ 393 1
93 QSO B1552+20 BLL 15 54 24.1304763192 +20 11 25.399984632     17.70     ~ 96 0
94 QSO B1553+113 BLL 15 55 43.0440048528 +11 11 24.365649948 14.91 14.72 14.57 13.99   ~ 493 1
95 4C 15.54 BLL 16 07 06.4307774688 +15 51 34.493596812   20.15 19.49 17.5   ~ 152 2
96 4C 39.49 BLL 16 53 52.2160772976 +39 45 36.613228860 14.09 14.15 13.29 8.26   ~ 2037 2
97 QSO B1704+607 BLL 17 05 34.8446318376 +60 42 15.870294504   17.7 19.1     ~ 58 0
98 QSO B1722+119 BLL 17 25 04.3409350008 +11 52 15.471967296   16.29 15.77 14.45   ~ 185 1
99 2MASX J17262310+5225559 G 17 26 23.1260169000 +52 25 55.603743024   15       ~ 14 2
100 6C 172704+501607 BLL 17 28 18.6242294352 +50 13 10.469553996   16.55 15.97 12.95   ~ 344 1
101 7C 173836.20+473929.00 BLL 17 39 57.1295375448 +47 37 58.356735960   18.5 19.5 18.88   ~ 114 1
102 7C 1749+7006 BLL 17 48 32.8402992264 +70 05 50.768819304   17.46 17.01 15.48   ~ 403 1
103 4C 09.57 BLL 17 51 32.8186120872 +09 39 00.728629416   17.46 16.78 15.57   ~ 886 1
104 QSO B1757+703 BLL 17 57 13.0521071712 +70 33 37.820087172     18.27 18   ~ 73 0
105 8C 1803+784 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 16.4 15.46   ~ 699 1
106 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 820 2
107 7C 181142.79+314318.00 BLL 18 13 35.2028439312 +31 44 17.620234836     17.4 15.2   ~ 88 1
108 4C 56.27 BLL 18 24 07.0679485560 +56 51 01.479645612   18.9 18.4 16.48   ~ 455 1
109 6C 192647+611105 BLL 19 27 30.4428785736 +61 17 32.878880988   17.5 17.5 16.99   ~ 103 1
110 QSO B1959+650 BLL 19 59 59.8520303688 +65 08 54.652536492     12.8 11.21   ~ 557 2
111 8C 2007+777 BLL 20 05 30.9987913056 +77 52 43.248139536     16.5 17.36   ~ 423 1
112 QSO B2005-489 BLL 20 09 25.3903899240 -48 49 53.725051056   15.75 12.81 11.41   ~ 541 2
113 QSO B2032+107 QSO 20 35 22.3335111432 +10 56 06.786328056   17.96 16.37 17.4   ~ 173 1
114 4C -02.81 BLL 21 34 10.3103777568 -01 53 17.234980584   18.6 19.0 18.87   ~ 349 1
115 QSO B2143+07 BLL 21 45 52.2999532008 +07 19 27.205685508     18.04 16   ~ 103 1
116 QSO B2155-304 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1656 1
117 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2140 1
118 3C 446 BLL 22 25 47.2594205952 -04 57 01.390436856   18.83 18.39 16.3   ~ 794 1
119 QSO B2240-260 BLL 22 43 26.4084975168 -25 44 30.680406312   18.59   16.80   ~ 174 1
120 QSO B2254+0727 BLL 22 57 17.3029968648 +07 43 12.297630108   17.07 16.36     ~ 291 1
121 SDSS J233907.40+053426.5 BLL 23 39 07.4027350824 +05 34 26.445216756     20.30 19.7   ~ 30 1
122 QSO B2342-153 BLL 23 45 22.38264 -15 15 05.8968     19.22 19.4   ~ 24 0
123 2E 4760 BLL 23 45 38.4249663576 -14 49 28.778832588     19.2 17   ~ 27 0
124 SDSS J235001.71+194151.4 BLL 23 50 01.71768 +19 41 51.4248     20.78 19.9   ~ 33 0

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2022.09.26-09:28:20

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