2006ApJ...645..856W

Query : 2006ApJ...645..856W

2006ApJ...645..856W - Astrophys. J., 645, 856-860 (2006/July-2)

Evidence for a population of beamed radio-intermediate quasars.

WANG T.-G., ZHOU H.-Y., WANG J.-X., LU Y.-J. and LU Y.

Abstract (from CDS):

Whether radio-intermediate quasars possess relativistic jets as radio-loud quasars do is an important issue in the understanding of the origin of radio emission in quasars. In this paper, using the two-epoch radio data obtained during the Faint Images of the Radio Sky at Twenty cm (FIRST) and NRAO VLA Sky Survey (NVSS), we identified 89 radio-variable sources in the Sloan Digital Sky Survey (SDSS). Among them, more than half are radio-intermediate quasars (RL=f20cm/f2500Å<250). For all objects with available multiple-band radio observations, the radio spectra are either flat or inverted. The brightness temperature inferred from the variability is larger than the synchrotron self-Compton limit for a stationary source in 87 objects, indicating relativistic beaming. Considering the sample selection and the viewing angle effect, we conclude that relativistic jets probably exist in a substantial fraction of radio-intermediate quasars.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Jets - Galaxies: Quasars: General - Radio Continuum: Galaxies

VizieR on-line data: <Available at CDS (J/ApJ/645/856): table1.dat>

Simbad objects: 89

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Number of rows : 89
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 Mrk 1501 Bla 00 10 31.00590413 +10 58 29.5042981   15.96 15.40 12.22   ~ 763 1
2 QSO J0102-0853 QSO 01 02 49.6535085552 -08 53 44.424029508   18.96 18.53     ~ 25 0
3 [VV2006] J013146.5-084104 QSO 01 31 46.4396130000 -08 41 04.180133544   19.77 19.44     ~ 22 0
4 [VV2006] J015153.3-002850 QSO 01 51 53.3058129744 -00 28 50.247417540   18.49 18.12     ~ 38 0
5 [VV2006] J073938.8+305951 QSO 07 39 38.8483139856 +30 59 51.306796824   21.64 21.00     ~ 26 0
6 [VV2006] J074033.6+285247 Bla 07 40 33.54382993 +28 52 47.2468460   19.78 19.60 19.19   ~ 57 1
7 [VV2006] J074815.5+220059 QSO 07 48 15.4431201888 +22 00 59.474577024   16.99 16.66     ~ 33 0
8 [VV2006] J074823.9+332051 QSO 07 48 23.8592064048 +33 20 51.273280104   20.43 20.00     ~ 34 0
9 [VV2006] J075535.4+292047 QSO 07 55 35.4217021008 +29 20 47.415693516   19.31 18.98     ~ 25 0
10 [VV2006] J075849.5+305452 QSO 07 58 49.4721897936 +30 54 52.955749080   20.09 19.79     ~ 23 0
11 [VV2006] J080945.2+453917 QSO 08 09 45.1724988000 +45 39 18.150408792   20.99 20.64     ~ 19 0
12 [VV2006] J081352.9+352035 QSO 08 13 52.8762719040 +35 20 35.407678236   19.94 19.73     ~ 21 0
13 [VV2000] J081415.1+412323 QSO 08 14 15.0526327296 +41 23 23.492060052   18.86 18.45     ~ 26 0
14 [VV2006] J081655.3+475611 QSO 08 16 55.2890084568 +47 56 11.577967080   20.58 20.28     ~ 28 0
15 SDSS J082817.25+371853.7 QSO 08 28 17.2585408704 +37 18 53.771057388   21.94 20.90     ~ 22 0
16 CBS 74 Sy1 08 32 25.3533620280 +37 07 36.254235468   16.46 16.37     ~ 90 0
17 SDSS J083655.73+342335.4 QSO 08 36 55.7368564512 +34 23 35.438365176   20.62 20.36     ~ 19 0
18 US 1329 Sy1 08 36 58.9103509968 +44 26 02.269644252   16.04 15.77     ~ 78 1
19 US 1358 QSO 08 37 44.0157955512 +42 06 43.911464652   19.67 19.37     ~ 24 0
20 [VV2006] J083951.0+333631 QSO 08 39 51.0149075184 +33 36 30.880586196   20.21 20.01     ~ 20 0
21 [VV2006] J084955.3+005305 QSO 08 49 55.2874692624 +00 53 05.540149392   18.94 18.55     ~ 26 0
22 QSO J0849+5108 BLL 08 49 57.97685916 +51 08 29.0238146   19.37 18.78 17.79   ~ 270 2
23 SDSS J085001.16+462600.5 Sy1 08 50 01.1692673952 +46 26 00.568091904   19.55 19.18     ~ 40 1
24 2MASS J08521782+0540283 QSO 08 52 17.8459396488 +05 40 27.865034832   21.50 20.68     ~ 21 0
25 US 2095 QSO 08 59 58.6846474848 +45 52 37.884424620   19.25 19.20     ~ 25 0
26 [VV2006] J090111.8+044859 Bla 09 01 11.86428476 +04 48 58.8338841   19.94 19.62 20.15   ~ 63 1
27 [VV2006] J090155.1+425404 QSO 09 01 55.1469703680 +42 54 04.485814380   19.98 19.68     ~ 21 0
28 [VV2006] J090412.9+060326 QSO 09 04 12.8800058712 +06 03 26.475530256   18.62 18.39     ~ 27 0
29 [VV2006] J090743.6+551512 QSO 09 07 43.6607025048 +55 15 12.398455404   17.74 17.64     ~ 31 0
30 ICRF J091641.7+024252 Sy1 09 16 41.76666992 +02 42 52.9013196   19.43 19.15     ~ 38 1
31 US 683 QSO 09 32 15.1478750424 +43 27 38.460348360   18.44 18.18     ~ 27 0
32 2SLAQ J093323.03-001051.7 Sy1 09 33 23.0311899192 -00 10 51.584774880   18.91 18.73     ~ 36 1
33 [VV2006] J093818.4+390810 QSO 09 38 18.3523027560 +39 08 09.688631640   20.90 20.49     ~ 21 0
34 [VV2006] J094420.4+613549 QSO 09 44 20.4415480536 +61 35 50.193723300   18.1 18.76 18.5   ~ 35 1
35 QSO J0948+0022 Bla 09 48 57.32005819 +00 22 25.5596984   18.85 18.61 18.17   ~ 350 2
36 [VV2006] J095046.4+584112 QSO 09 50 46.4861231352 +58 41 13.063575912   20.72 20.57     ~ 24 0
37 [VV2006] J095147.9+020235 QSO 09 51 47.8661798280 +02 02 35.538730476   18.70 18.57     ~ 25 0
38 QSO B0949+510 Bla 09 52 27.3080211792 +50 48 50.648241132   18.11 17.89 17.76   ~ 68 1
39 [VV2006] J095618.2+542627 QSO 09 56 18.1704384456 +54 26 28.229263044   19.59 19.50     ~ 21 0
40 [VV2006] J095740.0+074047 QSO 09 57 39.9243743928 +07 40 47.960934276   19.90 19.61     ~ 23 0
41 US 1139 Bla 09 58 19.67164698 +47 25 07.8424065   18.78 18.62 18.39   ~ 264 1
42 [VV2006] J101609.5+002811 QSO 10 16 09.4812398592 +00 28 10.559353764   20.37 19.78     ~ 21 0
43 [VV2006] J103424.4+493221 QSO 10 34 24.4200559608 +49 32 20.988953592   20.40 20.07     ~ 21 0
44 [VV2006] J104901.7+005533 QSO 10 49 01.7154353616 +00 55 34.088760480   18.91 18.63     ~ 28 0
45 QSO B1050-0000 QSO 10 53 20.4267162840 -00 16 49.652922360   22.49 20.77     ~ 65 0
46 [VV2006] J110845.3+594138 QSO 11 08 45.2853768912 +59 41 37.984460064   18.88 18.63     ~ 26 0
47 [VV2006] J110859.3+031127 QSO 11 08 59.2969591968 +03 11 27.990217392   20.52 19.90     ~ 21 0
48 [VV2006] J111030.5+034833 QSO 11 10 30.4434270528 +03 48 33.316983288   19.67 19.48     ~ 23 0
49 2QZ J111221.7+003028 Sy1 11 12 21.8234859840 +00 30 28.634083308   19.74 19.72     ~ 29 1
50 QSO B1146+562 QSO 11 48 56.8002563208 +55 58 27.238021968   19.52 19.32     ~ 28 0
51 [VV2006] J120331.1-014112 QSO 12 03 31.1059351728 -01 41 11.722738740   18.55 18.29     ~ 28 0
52 [VV2006] J121143.6+013011 QSO 12 11 43.5297953256 +01 30 11.209222044   18.82 18.58     ~ 29 0
53 [VV2006] J121440.0+600331 QSO 12 14 40.0757774472 +60 03 30.885750000   19.10 18.67     ~ 23 0
54 [VV2006] J121446.0+532023 QSO 12 14 46.0739611272 +53 20 23.515238976   20.00 19.56     ~ 23 0
55 [VV2006] J121729.2+060751 QSO 12 17 29.2944351744 +06 07 50.885326164   19.90 19.57     ~ 36 0
56 [VV2006] J121729.8-004717 QSO 12 17 29.8484181696 -00 47 15.675120744   20.64 20.27     ~ 24 0
57 [VV2006] J121916.8+623025 QSO 12 19 16.7861853000 +62 30 26.053162920   19.88 19.73     ~ 27 0
58 [VV2006] J122400.8+005920 QSO 12 24 00.7887891696 +00 59 19.919604336   19.88 19.47     ~ 25 0
59 [VV2006] J122705.7+631533 QSO 12 27 05.7078001896 +63 15 33.259748652   20.10 19.89     ~ 19 0
60 [VV2006] J122757.2+101410 QSO 12 27 57.2335722096 +10 14 10.705360704   18.71 18.24     ~ 25 0
61 [VV2006] J122819.3+023229 QSO 12 28 19.25666081 +02 32 29.3966726   20.99 20.71     ~ 41 0
62 [VV2006] J122956.2-012910 QSO 12 29 56.1718959576 -01 29 10.649287968   18.9 19.62 18.9   ~ 24 0
63 SDSS J123132.37+013814.1 BLL 12 31 32.3721125040 +01 38 14.058628800   19.61 18.96     ~ 40 0
64 [VV2006] J123628.8+565156 QSO 12 36 28.7856905496 +56 51 56.472070356   20.72 20.48     ~ 20 0
65 [VV2006] J123932.7+044305 Bla 12 39 32.75568115 +04 43 05.2330218   20.81 20.56 18.1   ~ 191 2
66 [VV2006] J125014.3+621032 QSO 12 50 14.3049907896 +62 10 32.540515860   20.02 19.70     ~ 29 0
67 [VV2006] J125414.3+024117 QSO 12 54 14.2808038464 +02 41 17.528111160   19.18 18.90     ~ 31 0
68 [VV2006] J131728.6+060046 QSO 13 17 28.6520255616 +06 00 46.511763876   19.45 19.18     ~ 29 1
69 PB 147 QSO 13 19 06.4751611344 +49 31 52.950219816   19.42 19.22     ~ 26 0
70 [VV2006] J135213.3+581536 QSO 13 52 13.3192540176 +58 15 36.701751816   19.47 19.23     ~ 28 0
71 [VV98] J135341.8+431053 Bla 13 53 41.7243475512 +43 10 52.527470664   17.74 17.51     ~ 45 0
72 QSO J1409+2618 QSO 14 09 23.9085820008 +26 18 21.056458176   16.07 15.74     ~ 193 0
73 [VV2006] J142730.4+545602 QSO 14 27 30.4276563264 +54 56 01.711831308   18.24 18.02     ~ 33 1
74 [VV2006] J143540.2+024226 QSO 14 35 40.2034700808 +02 42 26.512428636   20.26 20.12     ~ 24 1
75 [VV2006] J143624.0+031155 QSO 14 36 23.9723385792 +03 11 55.567070232   19.68 19.29     ~ 24 0
76 [VV2006] J145002.5+001629 BLL 14 50 02.4620209608 +00 16 29.546882544   19.37 19.12 18.5   ~ 40 1
77 [VV2006] J145208.0+025019 QSO 14 52 07.9472892120 +02 50 19.427571780   20.56 20.27     ~ 21 0
78 [VV2006] J150205.4+604533 QSO 15 02 05.3928549120 +60 45 34.288787304   20.00 19.53     ~ 27 1
79 QSO B1508+572 QSO 15 10 02.92237321 +57 02 43.3759220   22.73 21.38 19.23   ~ 223 1
80 [VV2006] J153559.7+583430 QSO 15 35 59.6705665824 +58 34 30.907108560   18.95 18.81     ~ 26 0
81 QSO J1537+5332 QSO 15 37 03.9463939656 +53 32 20.032814976   18.50 18.31     ~ 35 0
82 QSO B1623+269 QSO 16 25 48.7980918960 +26 46 58.784527056   17.77 17.64     ~ 109 0
83 [VV2006] J162816.9+351023 QSO 16 28 16.9476046080 +35 10 23.656436364   19.17 18.80     ~ 22 0
84 [VV2006] J163915.8+412833 QSO 16 39 15.8122 +41 28 33.702   19.36 19.16 19.04 18.90 ~ 43 1
85 [VV2006] J164602.2+432156 QSO 16 46 02.2517479944 +43 21 56.348136756   20.91 20.65     ~ 25 0
86 [VV2006] J164953.0+325814 BLL 16 49 52.9162 +32 58 15.204   18.5 18.87 18.3   ~ 33 1
87 [VV2006] J171536.0+632336 Bla 17 15 35.9579643000 +63 23 36.002718168   19.05 18.83 18   ~ 43 1
88 QSO J2107-0620 QSO 21 07 57.6703506072 -06 20 10.626172908   17.78 17.45     ~ 45 0
89 SDSS J230845.85+011201.3 QSO 23 08 45.8511556848 +01 12 01.364088708   20.74 20.38     ~ 27 0

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