2000ApJ...537...80C


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST03:53:57

2000ApJ...537...80C - Astrophys. J., 537, 80-90 (2000/July-1)

Gamma-ray and multi-wave band emission from gamma-ray-loud blazars.

CHENG K.S., ZHANG X. and ZHANG L.

Abstract (from CDS):

Using multi-wave band data for 61 γ-ray-loud blazars (17 BL Lacertae objects and 44 flat-spectrum radio quasars [FSRQs]), we have studied the possible correlation between flux densities (FR, F_K_, FO, FX, and Fγ) in the radio, infrared, optical, X-ray, and γ-ray wave bands, in both the low and high states. For some blazars, it is hard to determine whether they are in a low or a high state because only one data point is available for each of them; initially, we exclude these blazars in our analysis. However, we include these blazars in later analysis by temporarily assuming them to be in a low state or a high state. Our main results are as follows. There are very strong correlations between FX and FO and between FO and FK in both low and high states. However, a strong correlation between FX and FK exists only in the low state. No definite correlation is found between γ-ray flux density and those of lower energy bands; however, there are hints of anticorrelation between Fγ and FX as well as Fγ and FO and a positive correlation between Fγ and FR. From these results we suggest that (1) photons from infrared to X-rays are emitted by the same particles via synchrotron radiation and (2) if γ-rays are mainly produced by an inverse Compton scattering mechanism, it seems that the up-scattered soft photons are from external photons rather than synchrotron photons.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Gamma Rays: Observations - Galaxies: Quasars: General - Radiation Mechanisms: Nonthermal - X-Rays: Galaxies

Simbad objects: 62

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Number of rows : 62

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 4C 15.05 Bla 02 04 50.41389571 +15 14 11.0436591   21.9 22.1 21.00   ~ 369 1
2 QSO B0208-512 BLL 02 10 46.2000629834 -51 01 01.893312084   17.10 16.93 14.82   ~ 396 1
3 3C 66A BLL 02 22 39.6111630878 +43 02 07.797284539   15.71 15.21 14.5   ~ 813 1
4 4C 28.07 QSO 02 37 52.40567732 +28 48 08.9900231     18.5 16.99   ~ 521 1
5 QSO B0235+1624 BLL 02 38 38.93010 +16 36 59.2746   16.46 15.50 15.92   ~ 1423 2
6 QSO B0336-0156 QSO 03 39 30.93778751 -01 46 35.8041062   18.96 18.41 17.33   ~ 517 1
7 QSO B0420-0127 QSO 04 23 15.80072776 -01 20 33.0654034   17.50 17.00 16.28   ~ 1093 3
8 QSO B0440-003 QSO 04 42 38.66073910 -00 17 43.4203921   19.59 19.22 17.85   ~ 366 1
9 QSO B0446+113 BLL 04 49 07.67110088 +11 21 28.5964577     20 18.58   ~ 230 1
10 QSO B0454-463 QSO 04 55 50.7729726039 -46 15 58.684031092   17.89 17.4 16.87   ~ 195 1
11 QSO J0457-2324 QSO 04 57 03.1792314200 -23 24 52.020969479   18.85 18.5 16.56   ~ 351 1
12 4C -02.19 QSO 05 01 12.80988366 -01 59 14.2562534   19.1 18.4 19.04   ~ 534 1
13 QSO B0506-612 QSO 05 06 43.9895985805 -61 09 40.990800301   17.16 16.85 16.9   ~ 170 2
14 QSO B0521-365 BLL 05 22 57.9839686440 -36 27 30.847737786   15.26 14.62 14.48   ~ 744 2
15 QSO J0530+13 Bla 05 30 56.41672 +13 31 55.1495     20.0 19.35   ~ 896 1
16 QSO B0537-441 BLL 05 38 50.36155219 -44 05 08.9389165   15.77 16.48 16   ~ 807 2
17 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1162 1
18 QSO J0738+1742 BLL 07 38 07.39374766 +17 42 18.9982302   16.76 16.22 15.78   ~ 907 1
19 7C 080458.39+495918.00 QSO 08 08 39.66628353 +49 50 36.5304035   19.55 19.18 18.34   ~ 330 2
20 7C 082754.29+242103.00 QSO 08 30 52.08619070 +24 10 59.8204032   17.62 17.26 16.30   ~ 476 1
21 QSO B0829+047 BLL 08 31 48.8771360822 +04 29 39.086736269   17.10 16.4 14.55   ~ 429 2
22 4C 71.07 QSO 08 41 24.36526906 +70 53 42.1730054     16.5 16.8   ~ 711 1
23 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 2080 1
24 ICRF J090933.4+425346 Sy2 09 09 33.4971425 +42 53 46.481984   19.98 19.42 18.220   ~ 469 0
25 6C 091740+445437 QSO 09 20 58.45848243 +44 41 53.9850927   18.40 18.16 16.55   ~ 334 1
26 4C 55.17 QSO 09 57 38.1845058338 +55 22 57.750865288   18.24 17.89     ~ 386 1
27 6C 095456+654857 BLL 09 58 47.2452838930 +65 33 54.821524491     17.0 15.75   ~ 633 1
28 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2449 1
29 QSO J1130-1449 QSO 11 30 07.05259287 -14 49 27.3881476   17.17 16.90 16 16.97 ~ 643 1
30 Ton 599 QSO 11 59 31.83390975 +29 14 43.8268741   14.80 14.41 17.652 13.39 ~ 815 1
31 7C 1219+2830 BLL 12 21 31.6902446544 +28 13 58.500383827   16.81 16.11 14.24   ~ 797 1
32 4C 21.35 QSO 12 24 54.4583467193 +21 22 46.385219365   17.56 17.50 18.2   ~ 586 2
33 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5436 1
34 4C -02.55 QSO 12 32 00.0157879377 -02 24 04.790684994   17.41 17.06 16.4   ~ 390 1
35 3C 279 Bla 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2779 2
36 QSO B1313-333 QSO 13 16 07.98593995 -33 38 59.1725057   18.04 20.0 17.23   ~ 231 1
37 QSO B1331+170 QSO 13 33 35.7828550018 +16 49 04.012528106   16.84 16.71 16.41   ~ 419 0
38 QSO B1406-076 QSO 14 08 56.48120036 -07 52 26.6664200   20.3 18.4     ~ 278 1
39 QSO B1424-41 QSO 14 27 56.29756536 -42 06 19.4375991   18.48 17.7 16.30   ~ 389 1
40 QSO J1512-0906 Bla 15 12 50.53292491 -09 05 59.8295878   16.74 16.54     ~ 1188 1
41 4C 15.54 BLL 16 07 06.4304649 +15 51 34.485357   20.15 19.49 17.5   ~ 151 2
42 4C 10.45 QSO 16 08 46.203185540 +10 29 07.77583000   18.5 18.0 18.03   ~ 346 1
43 6C 161147+342017 QSO 16 13 41.0645258703 +34 12 47.911898732   17.98 17.46 17.07   ~ 586 1
44 QSO B1622-253 QSO 16 25 46.89164010 -25 27 38.3267989   21.3 20.6 19.60   ~ 314 1
45 QSO B1622-297 Bla 16 26 06.02083867 -29 51 26.9710860   18.41 20.5 17.6   ~ 379 0
46 4C 38.41 QSO 16 35 15.492970280 +38 08 04.50062279   18.14 17.97 17.25   ~ 769 1
47 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1967 2
48 QSO B1730-130 QSO 17 33 02.70578476 -13 04 49.5481484   18 18.5 18.78 17.39 ~ 1017 1
49 4C 51.37 Bla 17 40 36.9779934388 +52 11 43.411910710   18.16 18.5 16.73   ~ 370 1
50 QSO B1741-038 QSO 17 43 58.85613396 -03 50 04.6166450     18.5 17.98   ~ 487 1
51 QSO B1830-211 Bla 18 33 39.92 -21 03 39.9     18.70 21   ~ 572 1
52 QSO B1933-400 QSO 19 37 16.21735166 -39 58 01.5529907   18.15 19 17.43   ~ 174 2
53 QSO B2005-489 BLL 20 09 25.3910622923 -48 49 53.722146927   15.75 12.81 11.41   ~ 524 2
54 QSO B2032+107 QSO 20 35 22.3341660153 +10 56 06.789797044   17.96 16.37 17.4   ~ 167 1
55 QSO B2052-474 QSO 20 56 16.35981874 -47 14 47.6276461   18.29 19.1 18.07   ~ 274 1
56 QSO B2155-304 BLL 21 58 52.0651817803 -30 13 32.120657891   13.36 13.09 12.62   ~ 1601 1
57 NAME BL Lac BLL 22 02 43.2913773726 +42 16 39.978417860   15.66 14.72     ~ 2045 1
58 QSO B2209+236 QSO 22 12 05.96631138 +23 55 40.5438272   19   19.69   ~ 197 1
59 4C 11.69 QSO 22 32 36.40890517 +11 43 50.9040717   17.75 17.33     ~ 1008 2
60 3C 454.3 Bla 22 53 57.74798 +16 08 53.5611   16.57 16.10 15.22   ~ 2571 2
61 QSO B2344+514 BLL 23 47 04.8376303689 +51 42 17.875387216     15.50 10.7   ~ 403 0
62 QSO B2356+196 QSO 23 58 46.0854250641 +19 55 20.304437585     18.0 17.37   ~ 111 1

    Equat.    Gal    SGal    Ecl

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2021.05.17-03:53:57

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