2019ApJ...879...68S


Query : 2019ApJ...879...68S

2019ApJ...879...68S - Astrophys. J., 879, 68-68 (2019/July-2)

The extragalactic gamma-ray background from core-dominated radio galaxies.

STECKER F.W., SHRADER C.R. and MALKAN M.A.

Abstract (from CDS):

Recent radio surveys have discovered a large number of low-luminosity core-dominated radio galaxies that are much more abundant than those at higher luminosities. These objects will be too faint in γ-rays to be detected individually by Fermi. Nevertheless, they may contribute significantly to the unresolved extragalactic γ-ray background. We consider here the possible contribution of these core-dominated radio galaxies to the diffuse extragalactic γ-ray background. Using published data available for all 45 of the radio galaxies listed as detected counterparts in the Fermi FL8Y source list update to the 3FGL catalog, we have searched for radio maps that can resolve the core flux from the total source flux. Using high-resolution radio maps we were able to obtain core fluxes for virtually every source. We then derived a relation between core radio flux and γ-ray flux that we extrapolated to sources with low radio luminosities that are known to be highly core-dominated. We then employed a very recent determination of the luminosity function for core-dominated radio galaxies in order to obtain the contribution of all possible γ-ray-emitting radio galaxies to the unresolved extragalactic γ-ray background. We find this contribution to be possibly non-negligible, 4%-18% of the unresolved γ-ray background observed using the Fermi-LAT telescope.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: active - gamma rays: diffuse background - gamma rays: galaxies

Simbad objects: 90

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Number of rows : 90
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 ICRF J002900.9-011341 QSO 00 29 00.98602604 -01 13 41.7597306   16.3   14.709   ~ 39 0
2 FL8Y J0030.6-0212 gam 00 30.6 -02 12           ~ 1 0
3 FL8Y J0057.7+3022 gam 00 57.7 +30 22           ~ 1 0
4 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 757 2
5 FL8Y J0308.4+0407 gam 03 08.4 +04 07           ~ 1 0
6 NGC 1218 Sy1 03 08 26.22380005 +04 06 39.3007808   12.84       ~ 368 1
7 IC 310 rG 03 16 42.9787569912 +41 19 29.615579544   14.3       ~ 256 2
8 FL8Y J0316.9+4120 gam 03 16.9 +41 20           ~ 1 0
9 FL8Y J0319.8+4130 gam 03 19.8 +41 30           ~ 1 0
10 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 3860 3
11 FL8Y J0322.6-3712e gam 03 22.6 -37 12           ~ 1 0
12 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1324 1
13 FL8Y J0334.3+3920 gam 03 34.3 +39 20           ~ 1 0
14 4C 39.12 rG 03 34 18.4162545072 +39 21 24.413823900   14.2       ~ 98 1
15 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 911 1
16 FL8Y J0418.5+3810 gam 04 18.5 +38 10           ~ 1 0
17 FL8Y J0433.0+0522 gam 04 33.0 +05 22           ~ 1 0
18 Mrk 1506 Sy1 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 1947 2
19 FL8Y J0519.7-4546 gam 05 19.7 -45 46           ~ 1 0
20 NAME Pic A Sy1 05 19 49.7229323856 -45 46 43.852662732   15.73 15.77 14.85   ~ 630 1
21 ICRF J052109.8+163822 Sy1 05 21 09.88596258 +16 38 22.0515459   19.37 18.84 18.480   ~ 820 1
22 FL8Y J0521.2+1637 gam 05 21.2 +16 37           ~ 1 0
23 FL8Y J0522.9-3628 gam 05 22.9 -36 28           ~ 1 0
24 QSO B0521-365 BLL 05 22 57.98464178 -36 27 30.8512953   15.26 14.62 14.48   ~ 793 2
25 FL8Y J0524.7-2405 gam 05 24.7 -24 05           ~ 1 0
26 PMN J0524-2352 rG 05 24 54.10 -23 52 19.0           ~ 8 1
27 2MASX J06214330-5241333 AGN 06 21 43.30328 -52 41 33.2978     15.5 19.34   ~ 80 1
28 FL8Y J0623.9-5300 gam 06 23.9 -53 00           ~ 1 0
29 FL8Y J0627.1-3529 gam 06 27.1 -35 29           ~ 1 0
30 QSO B0625-354 BLL 06 27 06.7286533392 -35 29 15.363665088   14.93       ~ 172 1
31 FL8Y J0708.9-3616 gam 07 08.9 -36 16           ~ 1 0
32 PKS 0707-35 rG 07 09 34.4976832896 -36 03 46.913660568           ~ 44 1
33 3C 189 QSO 07 58 28.10812817 +37 47 11.8076475   14.15 14.9     ~ 255 1
34 FL8Y J0758.7+3746 gam 07 58.7 +37 46           ~ 1 0
35 ICRF J084047.5+131223 Sy1 08 40 47.58842599 +13 12 23.5637506   18.58 18.15 17.622   ~ 410 1
36 FL8Y J0840.8+1315 gam 08 40.8 +13 15           ~ 1 0
37 3C 208 QSO 08 53 08.6093021736 +13 52 54.845406984   17.76 17.42     ~ 246 1
38 FL8Y J0858.3+1409 gam 08 58.3 +14 09           ~ 1 0
39 FL8Y J0934.3+3926 gam 09 34.3 +39 26           ~ 1 0
40 3C 221 Rad 09 35 06.50 +39 42 07.0           ~ 30 1
41 4C 05.44 rG 10 39 28.21920 +05 36 13.6224     18.0     ~ 17 1
42 FL8Y J1040.5+0617 gam 10 40.5 +06 17           ~ 1 0
43 FL8Y J1053.6+4930 gam 10 53.6 +49 30           ~ 1 0
44 7C 105047.29+494553.00 BLL 10 53 44.1256067376 +49 29 55.999047156   18.70 17.76 13.8   ~ 124 2
45 FL8Y J1144.9+1937 gam 11 44.9 +19 37           ~ 1 0
46 3C 264.0 QSO 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 574 2
47 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1188 0
48 FL8Y J1219.5+0548 gam 12 19.5 +05 48           ~ 1 0
49 FL8Y J1230.8+1223 gam 12 30.8 +12 23           ~ 1 0
50 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 6833 3
51 3C 275.1 QSO 12 43 57.6491122968 +16 22 53.395049244   19.23 19.00     ~ 299 1
52 FL8Y J1244.5+1616 gam 12 44.5 +16 16           ~ 1 0
53 2MASX J13024868+4755105 BiC 13 02 48.7131910008 +47 55 10.664891616           ~ 10 0
54 LEDA 45364 LIN 13 06 19.2497943600 +11 13 39.761596200   15.0 13.0     ~ 29 0
55 FL8Y J1306.4+1112 gam 13 06.4 +11 12           ~ 1 0
56 FL8Y J1306.7-2149 gam 13 06.7 -21 49           ~ 1 0
57 2MASX J13064208-2147508 AGN 13 06 42.0499185024 -21 47 50.988018192   17.5       ~ 23 2
58 FL8Y J1312.6+4828 gam 13 12.6 +48 28           ~ 1 0
59 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4324 3
60 FL8Y J1325.5-4301 gam 13 25.5 -43 01           ~ 1 0
61 FL8Y J1331.0+3031 gam 13 31.0 +30 31           ~ 1 0
62 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4175 2
63 FL8Y J1346.3-6027 gam 13 46.3 -60 27           ~ 1 0
64 NAME Cen B QSO 13 46 49.04248361 -60 24 29.3553900         15.74 ~ 144 0
65 FL8Y J1350.8+3033 gam 13 50.8 +30 33           ~ 1 0
66 3C 293.0 BLL 13 52 17.8719816576 +31 26 46.487381604   16.10 15.10     ~ 449 3
67 FL8Y J1428.5+4240 gam 14 28.5 +42 40           ~ 2 0
68 QSO B1426+428 BLL 14 28 32.6090008440 +42 40 21.048123396   16.95 16.45 14.4   ~ 492 2
69 FL8Y J1443.0+5201 gam 14 43.0 +52 01           ~ 1 0
70 NAME OKM2018 SWIFT J1442.9+5206 Sy1 14 43 02.76069031 +52 01 37.2985156   18.96 18.29     ~ 288 3
71 FL8Y J1454.2+1622 gam 14 54.2 +16 22           ~ 1 0
72 IC 4516 rG 14 54 23.471 +16 21 18.76     14.22     ~ 82 1
73 FL8Y J1459.0+7139 gam 14 59.0 +71 39           ~ 1 0
74 ICRF J145907.5+714019 Sy1 14 59 07.58390804 +71 40 19.8668093   17.24 16.78 17.2   ~ 480 1
75 4C 00.56 BLL 15 16 40.21905672 +00 15 01.9090936   17.28 16.64 10.53   ~ 186 1
76 FL8Y J1518.6+0613 gam 15 18.6 +06 13           ~ 1 0
77 FL8Y J1518.7+0202 gam 15 18.7 +02 02           ~ 1 0
78 LEDA 97478 Bla 15 18 45.7276771080 +06 13 56.112249504   16.65   15.37   ~ 47 2
79 FL8Y J1521.2+0421 gam 15 21.2 +04 21           ~ 1 0
80 ICRF J152122.5+042030 LIN 15 21 22.54359760 +04 20 30.1367860   15.6 16     ~ 57 1
81 FL8Y J1631.0+8233 gam 16 31.0 +82 33           ~ 1 0
82 NGC 6251 Sy2 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 702 0
83 FL8Y J1829.5+4846 gam 18 29.5 +48 46           ~ 1 0
84 ICRF J182931.7+484446 Sy1 18 29 31.7809732968 +48 44 46.160168892   17.05 16.81 16.860   ~ 668 1
85 2MASX J18431464-4836229 G 18 43 14.61807 -48 36 23.1997   16.79 17.5 15.25   ~ 52 1
86 FL8Y J1843.5-4835 gam 18 43.5 -48 35           ~ 1 0
87 QSO B1955-35 BLL 19 59 03.7827296016 -35 34 30.488456784   18.90 18.6 17.98   ~ 23 1
88 FL8Y J2004.1-3603 gam 20 04.1 -36 03           ~ 1 0
89 LEDA 2831759 BLL 23 29 39.7 -21 13 43     18.0     ~ 15 1
90 FL8Y J2329.7-2117 gam 23 29.7 -21 17           ~ 1 0

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2023.02.08-05:15:00

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