2016ApJ...826..135L


Query : 2016ApJ...826..135L

2016ApJ...826..135L - Astrophys. J., 826, 135-135 (2016/August-1)

Acceleration of compact radio jets on sub-parsec scales.

LEE S.-S., LOBANOV A.P., KRICHBAUM T.P. and ZENSUS J.A.

Abstract (from CDS):

Jets of compact radio sources are highly relativistic and Doppler boosted, making studies of their intrinsic properties difficult. Observed brightness temperatures can be used to study the intrinsic physical properties of relativistic jets, and constrain models of jet formation in the inner jet region. We aim to observationally test such inner jet models. The very long baseline interferometry (VLBI) cores of compact radio sources are optically thick at a given frequency. The distance of the core from the central engine is inversely proportional to the frequency. Under the equipartition condition between the magnetic field energy and particle energy densities, the absolute distance of the VLBI core can be predicted. We compiled the brightness temperatures of VLBI cores at various radio frequencies of 2, 8, 15, and 86 GHz. We derive the brightness temperature on sub-parsec scales in the rest frame of the compact radio sources. We find that the brightness temperature increases with increasing distance from the central engine, indicating that the intrinsic jet speed (the Lorentz factor) increases along the jet. This implies that the jets are accelerated in the (sub-)parsec regions from the central engine.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: active - galaxies: jets - galaxies: nuclei - radio continuum: galaxies - quasars: general

Simbad objects: 118

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Number of rows : 118
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 QSO B0003-066 BLL 00 06 13.8928497048 -06 23 35.332689228   19.1   17.14   ~ 300 1
2 6C 001403+811827 BLL 00 17 08.4752241816 +81 35 08.137070016   17.60 16.52 15.95   ~ 371 1
3 QSO B0016+73 QSO 00 19 45.7863851568 +73 27 30.018073212     19.0 18.26   ~ 283 1
4 NGC 315 LIN 00 57 48.8590525608 +30 21 08.842041360 12.80 12.20 11.16 11.26   ~ 749 2
5 4C 01.02 QSO 01 08 38.7711625632 +01 35 00.318640596   18.54 18.39 19.05   ~ 496 1
6 QSO B0112-0142 QSO 01 15 17.0998793424 -01 27 04.579324416   17 17.235 17.81   ~ 209 1
7 QSO B0119+115 QSO 01 21 41.5943568672 +11 49 50.417513652   19.5 19.0 18.61   ~ 172 1
8 QSO B0119+041 QSO 01 21 56.8612353744 +04 22 24.734216064   19.2 19.5 19.40   ~ 176 1
9 QSO B0133+476 Bla 01 36 58.5947351640 +47 51 29.099491848     18.0 19.25 15.21 ~ 468 1
10 QSO B0149+218 QSO 01 52 18.0587265528 +22 07 07.696343460     18 18.89   ~ 150 1
11 QSO B0201+113 QSO 02 03 46.6570697736 +11 34 45.410523492   19.5 19.5 19.41   ~ 193 1
12 4C 15.05 Bla 02 04 50.41389571 +15 14 11.0436591   21.9 22.1 21.00   ~ 383 1
13 7C 020209.69+315812.00 QSO 02 05 04.9251427344 +32 12 30.093761736     18.00 17.40   ~ 208 1
14 4C 28.07 QSO 02 37 52.4057664048 +28 48 08.990026884     18.5 16.99   ~ 554 1
15 QSO B0235+1624 BLL 02 38 38.9300958576 +16 36 59.276150136   16.46 15.50 15.92   ~ 1453 2
16 NGC 1052 GiP 02 41 04.7997864552 -08 15 20.761481016 11.84 11.41 10.47 10.71   ~ 1232 2
17 4C 32.14 QSO 03 36 30.1074972672 +32 18 29.341371132     17.50 16.6   ~ 609 1
18 4C 50.11 QSO 03 59 29.7469819512 +50 57 50.159106936           ~ 416 1
19 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 898 1
20 Mrk 1506 Sy1 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 1924 2
21 QSO B0440-003 QSO 04 42 38.6605722792 -00 17 43.421193564   19.59 19.22 17.85   ~ 370 1
22 QSO B0521-365 BLL 05 22 57.9841341216 -36 27 30.847204512   15.26 14.62 14.48   ~ 779 2
23 QSO B0537-286 QSO 05 39 54.2815136376 -28 39 55.947762216   19.70 20.0 18.789   ~ 260 1
24 7C 055201.39+394824.00 QSO 05 55 30.8055972888 +39 48 49.166341920     18.0 17.5   ~ 487 2
25 6C 060237+672110 QSO 06 07 52.6703026608 +67 20 55.412148084   20.6 20.6 20.21   ~ 91 1
26 QSO B0607-157 QSO 06 09 40.9493089944 -15 42 40.667570496   18.47 18.0 19.90   ~ 299 1
27 6C 061543+820331 QSO 06 26 03.0063691536 +82 02 25.567781928   17.5 17.5 18.52   ~ 152 1
28 7C 064253.00+445430.00 QSO 06 46 32.0253442416 +44 51 16.588600488   19.57 18.49 18.64   ~ 334 1
29 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 14.17 14.27   ~ 1211 1
30 QSO J0730-116 QSO 07 30 19.1119137384 -11 41 12.596691444     20.30 20.3   ~ 279 1
31 QSO B0736+01 QSO 07 39 18.0339358560 +01 37 04.618841340   16.90 16.47 16.19   ~ 648 1
32 ICRF J074110.7+311200 Sy1 07 41 10.7033429280 +31 12 00.230596416   17.02 16.89 16.322   ~ 428 1
33 QSO B0742+103 QSO 07 45 33.05952141 +10 11 12.6923363       23.72   ~ 186 1
34 QSO B0745+241 QSO 07 48 36.1087026816 +24 00 24.109630416   19.70 18.89 17.88   ~ 191 1
35 QSO B0748+126 QSO 07 50 52.0455280992 +12 31 04.828034820   17.67 17.28 17.16   ~ 302 1
36 7C 080458.39+495918.00 QSO 08 08 39.6660148632 +49 50 36.535256700   19.55 19.18 18.34   ~ 338 2
37 7C 081451.89+423206.00 BLL 08 18 15.9997819800 +42 22 45.414412572   18.88 18.18 17.81   ~ 371 1
38 7C 082754.29+242103.00 QSO 08 30 52.0861432224 +24 10 59.822369580   17.62 17.26 16.30   ~ 486 1
39 4C 58.17 QSO 08 54 41.9965316472 +57 57 29.939360472   18.56 18.18 17.43   ~ 218 1
40 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2169 1
41 4C 47.29 QSO 09 03 03.9901509360 +46 51 04.140636948   19.90 19.44 18.7   ~ 238 1
42 6C 091740+445437 QSO 09 20 58.4583974280 +44 41 53.986407072   18.40 18.16 16.55   ~ 346 1
43 ICRF J092703.0+390220 Sy1 09 27 03.0138528936 +39 02 20.850343332   17.17 17.00 16.486   ~ 959 1
44 4C 40.24 QSO 09 48 55.3382263320 +40 39 44.589392532   18.31 18.02 17.85   ~ 321 1
45 6C 095505+473957 QSO 09 58 19.6716244680 +47 25 07.843345896   18.78 18.62 18.39   ~ 215 1
46 4C 21.28 QSO 10 51 48.7882723152 +21 19 52.315780584     18.5 17.72   ~ 136 1
47 4C 01.28 BLL 10 58 29.6054370384 +01 33 58.820502924   18.74 18.28 16.68   ~ 712 2
48 Mrk 421 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2522 1
49 4C 12.39 QSO 11 18 57.3014979096 +12 34 41.715230196   19.39 19.25 19.10   ~ 244 1
50 QSO B1124-186 QSO 11 27 04.3922636736 -18 57 17.439607512   19.17   19.23   ~ 203 1
51 QSO B1128+385 QSO 11 30 53.2825598016 +38 15 18.551693556   19.11 18.80 19.42   ~ 185 1
52 QSO B1145-071 QSO 11 47 51.5538881904 -07 24 41.138624592   19.0 18.5 18.10   ~ 168 1
53 8C 1150+812 QSO 11 53 12.4986308136 +80 58 29.152394328     18.5 18.54   ~ 227 1
54 Ton 599 QSO 11 59 31.8338889192 +29 14 43.826803116   14.80 14.41 17.652 13.39 ~ 851 1
55 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 814 1
56 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5573 1
57 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6684 3
58 QSO J1246-2547 QSO 12 46 46.8017282136 -25 47 49.289500104   17.65 17.41 16.96 15.5 ~ 252 1
59 3C 279 Bla 12 56 11.1663795384 -05 47 21.528432492   18.01 17.75 15.87   ~ 2873 2
60 7C 1308+3236 BLL 13 10 28.6639899312 +32 20 43.774028664   15.61 15.24 17.91   ~ 790 1
61 QSO B1324+224 QSO 13 27 00.8609838552 +22 10 50.163758976     18.90 18.80   ~ 143 1
62 QSO B1334-127 QSO 13 37 39.7829208840 -12 57 24.693846264   18.5 18.5 16.22   ~ 458 1
63 QSO B1404+286 BLL 14 07 00.3941769384 +28 27 14.692128372   16.13 15.35 10.29   ~ 726 2
64 6C 142433+363850 QSO 14 26 37.0868327352 +36 25 09.564540924   20.44 19.93 20.27   ~ 59 1
65 4C -05.64 QSO 15 10 53.5915864584 -05 43 07.417490736   17.44 17.21     ~ 203 1
66 QSO B1511-100 QSO 15 13 44.8936785000 -10 12 00.264580164   18.5 18.5 17.35   ~ 107 1
67 4C 05.64 QSO 15 50 35.2692689760 +05 27 10.455019380   19.10 18.73 19.02   ~ 303 1
68 QSO B1555+001 QSO 15 57 51.4338994584 -00 01 50.414034648   20.10 19.72 18.75   ~ 172 1
69 4C 10.45 QSO 16 08 46.2032041032 +10 29 07.779419592   18.5 18.0 18.03   ~ 355 1
70 6C 161147+342017 QSO 16 13 41.0642858568 +34 12 47.910181572   17.98 17.46 17.07   ~ 600 1
71 QSO B1622-253 QSO 16 25 46.8886080600 -25 27 38.336613804   21.3 20.6 19.60   ~ 322 1
72 4C 41.32 QSO 16 25 57.66971410 +41 34 40.6292986     22 21.73   ~ 161 1
73 NGC 6251 Sy2 16 32 31.9740654384 +82 32 16.403167068 15.24 14.66 12.89 7.62   ~ 695 0
74 4C 38.41 QSO 16 35 15.4928147784 +38 08 04.499799360   18.14 17.97 17.25   ~ 802 1
75 ICRF J163813.4+572023 Sy1 16 38 13.4562758136 +57 20 23.980140888     17.0 16.94   ~ 327 1
76 6C 163852+395305 QSO 16 40 29.6332404024 +39 46 46.030865700   18.4 16.5 18.75   ~ 289 2
77 3C 345 QSO 16 42 58.8102993888 +39 48 37.002763188   16.81 16.59 16.84   ~ 1624 2
78 4C 39.49 BLL 16 53 52.2160772976 +39 45 36.613228860 14.09 14.15 13.29 8.26   ~ 2026 2
79 6C 165641+474241 QSO 16 58 02.7795096192 +47 37 49.230782652   17.93 17.70 17.02   ~ 105 1
80 QSO J1658+0741 QSO 16 58 09.0115232160 +07 41 27.544209360   19.993 19.5 19.598   ~ 161 1
81 QSO B1730-130 QSO 17 33 02.7055087032 -13 04 49.545516612   18 18.5 18.78 17.39 ~ 1064 1
82 4C 51.37 Bla 17 40 36.9781162752 +52 11 43.408067208   18.16 18.5 16.73   ~ 380 1
83 QSO B1741-038 QSO 17 43 58.8561752304 -03 50 04.618401684     18.5 17.98   ~ 508 1
84 4C 09.57 BLL 17 51 32.8186120872 +09 39 00.728629416   17.46 16.78 15.57   ~ 881 1
85 7C 175844.60+384828.00 QSO 18 00 24.7653461736 +38 48 30.697069572   17.8 17.8 17.04   ~ 139 1
86 8C 1803+784 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 16.4 15.46   ~ 692 1
87 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 819 2
88 QSO J1824+1044 Bla 18 24 02.8552002000 +10 44 23.773545492   17.66 17.27 16.71   ~ 165 1
89 4C 56.27 BLL 18 24 07.0679485560 +56 51 01.479645612   18.9 18.4 16.48   ~ 453 1
90 ICRF J184916.0+670541 Sy1 18 49 16.0719656904 +67 05 41.681210424     20 17.45   ~ 235 1
91 QSO B1908-202 QSO 19 11 09.6526857480 -20 06 55.109271780   18.21   18.14   ~ 252 0
92 QSO B1921-293 BLL 19 24 51.0555700728 -29 14 30.118109640   18.71 18.21 15.07   ~ 772 0
93 QSO B1937-1009 BLL 19 39 57.2566747152 -10 02 41.522299692   18.800 19.0 17.188   ~ 180 1
94 QSO B1954+513 QSO 19 55 42.7384954488 +51 31 48.542394936     18.5 17.34   ~ 227 1
95 QSO B1954-388 QSO 19 57 59.8193971392 -38 45 06.356631852   18.47 17.07 16.73   ~ 198 1
96 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2241 2
97 QSO B1958-179 QSO 20 00 57.0904184064 -17 48 57.674464236   18.02 17.46 15.33   ~ 237 1
98 QSO B2029+121 BLL 20 31 54.9939999792 +12 19 41.345344596     18.5 17.42   ~ 140 1
99 QSO J2115+295 QSO 21 15 29.4133345104 +29 33 38.366174628     19.5 19.26   ~ 151 1
100 QSO J2123+0535 QSO 21 23 44.5173734952 +05 35 22.093702692   18.3 17.5 19.86   ~ 271 1
101 QSO B2126-15 QSO 21 29 12.1759496520 -15 38 41.040389292   17.61 17.3 17.3   ~ 480 1
102 QSO B2128-123 BLL 21 31 35.2617909696 -12 07 04.795364172   16.33 16.11 15.87   ~ 436 1
103 4C -02.81 BLL 21 34 10.3103777568 -01 53 17.234980584   18.6 19.0 18.87   ~ 346 1
104 QSO B2136+1410 QSO 21 39 01.3093296432 +14 23 35.988162648     18.5 18.22   ~ 239 1
105 4C 06.69 QSO 21 48 05.4586454304 +06 57 38.602799388   16.85 16.47 15.06   ~ 628 1
106 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2130 1
107 4C 31.63 BLL 22 03 14.9756830008 +31 45 38.269473228   15.85 15.58 14.33   ~ 474 1
108 BWE 2209+2340 QSO 22 12 05.9664991416 +23 55 40.543886604   19   19.69   ~ 203 1
109 4C -03.79 QSO 22 18 52.0376984088 -03 35 36.879875124   16.93 16.38 16.15   ~ 323 1
110 3C 446 BLL 22 25 47.2594205952 -04 57 01.390436856   18.83 18.39 16.3   ~ 790 1
111 AT20G J222940-083254 QSO 22 29 40.0843811352 -08 32 54.437624196   17.80 17.41 17.81   ~ 317 1
112 4C 11.69 QSO 22 32 36.4089639768 +11 43 50.904601176   17.75 17.33     ~ 1039 2
113 QSO B2232+282 BLL 22 36 22.4708346336 +28 28 57.411659856   19.1 19.0 17.60   ~ 235 1
114 QSO J2246-1206 QSO 22 46 18.2322488304 -12 06 51.278055084   16.63 16.45 15.99   ~ 270 1
115 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 2675 2
116 ICRF J225805.9-275821 Sy1 22 58 05.9627218728 -27 58 21.258376248   17.34 16.77 17.20   ~ 324 1
117 QSO B2329-16 BLL 23 31 38.6527958352 -15 56 57.011907156   20.72   20.65   ~ 122 1
118 QSO B2345-167 QSO 23 48 02.6085903648 -16 31 12.023178096   18.00 18.41 16.86   ~ 377 1

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2022.07.06-08:52:43

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