2016A&A...596A..45F

Query : 2016A&A...596A..45F

2016A&A...596A..45F - Astronomy and Astrophysics, volume 596A45-45 (2016/12-1)

The F-GAMMA programme: multi-frequency study of active galactic nuclei in the Fermi era. Programme description and the first 2.5 years of monitoring.

FUHRMANN L., ANGELAKIS E., ZENSUS J.A., NESTORAS I., MARCHILI N., PAVLIDOU V., KARAMANAVIS V., UNGERECHTS H., KRICHBAUM T.P., LARSSON S., LEE S.S., MAX-MOERBECK W., MYSERLIS I., PEARSON T.J., READHEAD A.C.S., RICHARDS J.L., SIEVERS A. and SOHN B.W.

Abstract (from CDS):

Context. To fully exploit the scientific potential of the Fermi mission for the physics of active galactic nuclei (AGN), we initiated the F-GAMMA programme. Between 2007 and 2015 the F-GAMMA was the prime provider of complementary multi-frequency monitoring in the radio regime.
Aims. We quantify the radio variability of γ-ray blazars. We investigate its dependence on source class and examine whether the radio variability is related to the γ-ray loudness. Finally, we assess the validity of a putative correlation between the two bands.
Methods. The F-GAMMA performed monthly monitoring of a sample of about 60 sources at up to twelve radio frequencies between 2.64 and 228.39GHz. We perform a time series analysis on the first 2.5-yr data set to obtain variability parameters. A maximum likelihood analysis is used to assess the significance of a correlation between radio and γ-ray fluxes.
Results. We present light curves and spectra (coherent within ten days) obtained with the Effelsberg 100m and IRAM 30m telescopes. All sources are variable across all frequency bands with amplitudes increasing with frequency up to rest frame frequencies of around 60-80GHz as expected by shock-in-jet models. Compared to flat-spectrum radio quasars (FSRQs), BL Lacertae objects (BL Lacs) show systematically lower variability amplitudes, brightness temperatures, and Doppler factors at lower frequencies, while the difference vanishes towards higher ones. The time scales appear similar for the two classes. The distribution of spectral indices appears flatter or more inverted at higher frequencies for BL Lacs. Evolving synchrotron self-absorbed components can naturally account for the observed spectral variability. We find that the Fermi-detected sources show larger variability amplitudes, brightness temperatures, and Doppler factors than non-detected ones. Flux densities at 86.2 and 142.3GHz correlate with 1GeV fluxes at a significance level better than 3σ, implying that γ rays are produced very close to the mm-band emission region.

Abstract Copyright: © ESO, 2016

Journal keyword(s): galaxies: active - BL Lacertae objects: general - quasars: general - galaxies: jets - gamma rays: galaxies - radiation mechanisms: non-thermal

VizieR on-line data: <Available at CDS (J/A+A/596/A45): sources.dat lc/*>

Simbad objects: 69

goto Full paper

goto View the references in ADS

Number of rows : 69
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 QSO B0003-066 BLL 00 06 13.89288482 -06 23 35.3353584   19.1 18.50 17.14   ~ 346 1
2 7C 0059+5808 Bla 01 02 45.76237340 +58 24 11.1366164   20.09 19.22 18.57 17.90 ~ 262 1
3 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
4 QSO J0217+0144 Bla 02 17 48.95475095 +01 44 49.6990271   16.74 16.09 18.51 13.29 ~ 455 1
5 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 942 2
6 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1064 2
7 4C 28.07 Bla 02 37 52.40567519 +28 48 08.9899986     19.30 16.99   ~ 654 1
8 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
9 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
10 4C 47.08 BLL 03 03 35.24221958 +47 16 16.2754726   17.54 16.95 16.2   ~ 292 1
11 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
12 RX J0319.8+1845 BLL 03 19 51.8082475320 +18 45 34.562475432           ~ 223 1
13 6C 033321+320838 Bla 03 36 30.10760267 +32 18 29.3422162     17.50 16.6   ~ 688 1
14 QSO B0336-0156 Bla 03 39 30.93778633 -01 46 35.8041892   18.96 18.41 17.33   ~ 598 1
15 6C 035545+504923 Bla 03 59 29.74727351 +50 57 50.1618607           ~ 480 1
16 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 1002 2
17 QSO B0420-0127 Bla 04 23 15.80072217 -01 20 33.0656073   17.50 17.00 16.28   ~ 1263 3
18 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
19 RX J0507.9+6737 BLL 05 07 56.1631660632 +67 37 24.225299292       17.2   ~ 196 1
20 QSO J0530+13 Bla 05 30 56.41674741 +13 31 55.1494688     20.00 19.35   ~ 1004 1
21 2C 553 QSO 06 27 10.125 -05 53 06.21           ~ 165 1
22 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1388 1
23 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 1045 1
24 QSO B0748+126 Bla 07 50 52.04573865 +12 31 04.8282079   17.67 17.28 17.16   ~ 363 1
25 7C 081451.89+423206.00 BLL 08 18 15.99961476 +42 22 45.4148987   18.88 18.18 17.81   ~ 429 1
26 7C 082754.29+242103.00 Bla 08 30 52.08619250 +24 10 59.8202919   17.62 17.26 16.30   ~ 563 1
27 4C 71.07 Bla 08 41 24.36528508 +70 53 42.1730435     17.30 16.8   ~ 818 1
28 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
29 6C 095456+654857 BLL 09 58 47.2451872176 +65 33 54.819354600     17.0 15.75   ~ 771 1
30 4C 06.41 BLL 10 41 17.16249940 +06 10 16.9237327   16.86 16.70 16.14   ~ 302 1
31 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
32 6C 112519+594222 Bla 11 28 13.34067181 +59 25 14.7985568   19.78 19.56 19.33   ~ 109 1
33 QSO J1130-1449 Bla 11 30 07.0523452128 -14 49 27.388021944   17.17 16.90 16 16.97 ~ 739 1
34 Z 334-43 BLL 11 36 26.4090783600 +70 09 27.309071232   15.16 14.49 10.51   ~ 394 1
35 Ton 599 Bla 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 989 1
36 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 924 1
37 7C 122223.5+213929 Bla 12 24 54.4583146056 +21 22 46.385507388   17.56 17.50 18.2   ~ 770 2
38 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
39 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
40 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
41 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
42 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
43 QSO B1406-076 Bla 14 08 56.48120623 -07 52 26.6665312   20.3 18.4     ~ 336 1
44 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
45 RX J1428.5+4240 BLL 14 28 32.6090008440 +42 40 21.048123396   16.95 16.45 14.4   ~ 549 1
46 QSO B1502+1041 Bla 15 04 24.97978391 +10 29 39.1985309   18.97 18.56 18.94   ~ 634 1
47 QSO J1512-0906 Bla 15 12 50.53293048 -09 05 59.8297908   16.74 16.54     ~ 1409 1
48 7C 1520+3154 Bla 15 22 09.99173254 +31 44 14.3819383   20.45 19.89 19.87   ~ 230 1
49 RX J1540.2+8155 BLL 15 40 15.8786533752 +81 55 05.781420660       15.8   ~ 90 1
50 6C 161147+342017 Bla 16 13 41.06424322 +34 12 47.9088535   17.98 17.46 17.07   ~ 673 1
51 4C 38.41 Bla 16 35 15.49297809 +38 08 04.5005995   18.14 17.97 17.25   ~ 906 1
52 3C 345 Bla 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1808 3
53 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
54 QSO B1730-130 Bla 17 33 02.70578907 -13 04 49.5482119   18 19.50 18.78 17.39 ~ 1198 1
55 1RXS J180043.6+782806 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 15.90 16.134   ~ 793 1
56 Z 340-35 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 909 1
57 4C 56.27 BLL 18 24 07.06837171 +56 51 01.4908155   18.9 19.30 16.48   ~ 510 1
58 QSO B1959+650 BLL 19 59 59.8520303688 +65 08 54.652536492     12.8 11.21   ~ 699 2
59 NAME K 3-50A HII 20 01 45.6 +33 32 42           ~ 85 0
60 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1
61 QSO B2155-152 Bla 21 58 06.28188411 -15 01 09.3284729   18.63 18.30 17.79   ~ 355 1
62 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1
63 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
64 4C 31.63 BLL 22 03 14.9756830008 +31 45 38.269473228   15.85 15.58 14.33   ~ 523 1
65 3C 446 BLL 22 25 47.25929101 -04 57 01.3907626   18.83 18.39 16.3   ~ 863 1
66 4C 11.69 Bla 22 32 36.40890093 +11 43 50.9040592   17.75 17.33     ~ 1205 2
67 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2
68 QSO B2344+514 BLL 23 47 04.8372110928 +51 42 17.877513168     15.50 10.7   ~ 500 1
69 QSO B2345-167 Bla 23 48 02.60851466 -16 31 12.0222546   18.00 18.41 16.86   ~ 432 1

To bookmark this query, right click on this link: simbad:objects in 2016A&A...596A..45F and select 'bookmark this link' or equivalent in the popup menu