2020MNRAS.497.2455T

Query : 2020MNRAS.497.2455T

2020MNRAS.497.2455T - Mon. Not. R. Astron. Soc., 497, 2455-2468 (2020/September-2)

Gamma-ray counterparts of 2WHSP high-synchrotron-peaked BL Lac objects as possible signatures of ultra-high-energy cosmic ray emission.

TOOMEY M.W., OIKONOMOU F. and MURASE K.

Abstract (from CDS):

We present a search for high-energy γ-ray emission from 566 Active Galactic Nuclei at redshift z > 0.2, from the 2WHSP catalogue of high-synchrotron peaked BL Lac objects with 8 yr of Fermi-LAT data. We focus on a redshift range where electromagnetic cascade emission induced by ultra-high-energy cosmic rays can be distinguished from leptonic emission based on the spectral properties of the sources. Our analysis leads to the detection of 160 sources above ≃5σ (TS >=25) in the 1-300 GeV energy range. By discriminating significant sources based on their γ-ray fluxes, variability properties, and photon index in the Fermi-LAT energy range, and modelling the expected hadronic signal in the TeV regime, we select a list of promising sources as potential candidate ultra-high-energy cosmic ray emitters for follow-up observations by Imaging Atmospheric Cherenkov Telescopes.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: high-redshift - gamma rays: galaxies

Simbad objects: 162

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Number of rows : 162
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 1RXS J002159.2-514028 BLL 00 22 00.0974462640 -51 40 24.314047428         17.04 ~ 38 0
2 RX J0022.0+0006 BLL 00 22 00.9557660688 +00 06 57.945375828   20.56 19.63     ~ 52 0
3 NVSS J003020-164714 BLL 00 30 20.4477854808 -16 47 13.097137884           ~ 33 1
4 KUV 00311-1938 BLL 00 33 34.3800569400 -19 21 33.134193864       16.6   ~ 125 0
5 1RXS J004333.7-044257 BLL 00 43 34.1227337381 -04 43 00.632192880           ~ 34 1
6 PHL 2911 BLL 00 43 48.6669688632 -11 16 07.314922956   18.4   17.9   ~ 36 1
7 PMN J0051-6242 BLL 00 51 16.6464761530 -62 42 04.408098612 17.50 17.42 17.38   16.493 ~ 59 1
8 RX J0111.5+0536 BLL 01 11 30.2007591360 +05 36 27.194363496       17.7   ~ 39 1
9 6dFGS gJ011904.6-145859 Bla 01 19 04.6198469568 -14 58 58.645798752   19.07   18.64   ~ 31 1
10 2MASS J01233839-2310585 BLL 01 23 38.3498181576 -23 10 58.873955124     19.00 17.6   ~ 43 1
11 2MASS J01564603-4744174 BLL 01 56 46.03416 -47 44 17.4156           ~ 27 0
12 1RXS J020413.6-333345 BLL 02 04 12.9304093536 -33 33 41.065719768       19   ~ 26 0
13 1RXS J020837.5+352314 BLL 02 08 38.1634090056 +35 23 12.806970864       18.8   ~ 110 0
14 ICRF J021252.8+224452 BLL 02 12 52.8350181888 +22 44 52.258856208       16.7   ~ 66 1
15 PMN J0216-6636 BLL 02 16 50.8694017295 -66 36 42.600089395 17.96 17.44 17.57     ~ 50 1
16 6C 021803+354230 BLL 02 21 05.4920852208 +35 56 13.848581904   20.0 20.0 19.60   ~ 603 3
17 RX J0227.2+0201 BLL 02 27 16.5921613152 +02 02 00.007676880       18.9   ~ 65 1
18 1RXS J023536.7-293845 BLL 02 35 36.7060333152 -29 38 43.052433288       19   ~ 33 0
19 1RXS J023733.9-360330 BLL 02 37 34.0464247200 -36 03 28.455320844 17.99 17.65 17.63 16.3   ~ 67 1
20 RBS 337 BLL 02 38 32.4803496720 -31 16 58.063079280 16.86 16.81 16.46 16.00   ~ 82 1
21 1RXS J024439.8-581953 BLL 02 44 40.3008303168 -58 19 54.629552928   18.66   17.05   ~ 60 0
22 1RXS J030103.8+344109 BLL 03 01 03.7549027896 +34 41 01.078942128     18.53     ~ 63 0
23 PKS J0303-2407 BLL 03 03 26.5025589984 -24 07 11.426291220   16.55 16.18     ~ 249 1
24 1RXS J030416.4-283215 BLL 03 04 16.3628475624 -28 32 18.060058824     19.54 19.8   ~ 46 0
25 RX J0304.5-0054 BLL 03 04 33.9589424424 -00 54 04.710232836   19.58 18.96 18.3   ~ 46 1
26 RX J0314.3+0620 BLL 03 14 23.9279493480 +06 19 56.525566764       17.5   ~ 45 1
27 PMN J0325-5635 BLL 03 25 23.5266207528 -56 35 44.648467836 17.55 16.56 15.89 13.2   ~ 36 0
28 1RXS J032540.8-164607 BLL 03 25 41.0966464392 -16 46 16.854374712           ~ 67 1
29 1RXS J033810.1-244337 BLL 03 38 12.5471299248 -24 43 50.093102640       18.6   ~ 46 0
30 1RXS J035855.6-305437 BLL 03 58 56.1047599056 -30 54 47.886192072           ~ 28 0
31 PMN J0416+0105 BLL 04 16 52.4945693352 +01 05 23.899102620   16.86 16.38 16   ~ 302 1
32 1RXS J050335.6-111504 BLL 05 03 35.4199786056 -11 15 06.738530040       19.9   ~ 27 0
33 PMN J0505+0416 BLL 05 05 34.7693853576 +04 15 54.577536876 18.07 17.80 17.56 16.8   ~ 83 1
34 RX J0506.9-5435 BLL 05 06 57.8154316665 -54 35 03.822937816 17.60 17.25 17.14   15.822 ~ 62 0
35 RX J0507.9+6737 BLL 05 07 56.1631660632 +67 37 24.225299292       17.2   ~ 196 1
36 1RXS J053629.4-334302 BLL 05 36 29.0674147920 -33 43 02.465333796 17.11 16.97 16.93 16.8   ~ 58 1
37 PMN J0544-5532 BLL 05 43 57.2123766984 -55 32 07.327939200 17.34 17.18 17.09 16.5   ~ 84 1
38 PMN J0558-3839 BLL 05 58 06.4316057352 -38 38 31.590709152   17.50 17.1     ~ 93 1
39 1RXS J060409.4-481726 BLL 06 04 08.6207497217 -48 17 25.157359371 17.96 17.91 17.79     ~ 51 1
40 2MASS J06071437-2518593 BLL 06 07 14.3762931000 -25 18 59.352566472       17.7   ~ 26 0
41 1RXS J062150.0-341140 BLL 06 21 49.7056934664 -34 11 49.346560176       20.2   ~ 26 0
42 1RXS J062338.8-525750 BLL 06 23 37.8767751144 -52 57 56.162758536       17.7   ~ 38 0
43 2MASS J06262650-1710467 Bla 06 26 26.50968 -17 10 46.7292           ~ 12 0
44 1RXS J064444.2-285120 BLL 06 44 43.7639388123 -28 51 16.720471211           ~ 31 1
45 RX J0650.7+2502 BLL 06 50 46.4900658984 +25 02 59.625654828 16.17 15.97 15.79 16.3   ~ 175 2
46 RX J0731.8+2804 BLL 07 31 52.7289827136 +28 04 32.936159892       16.2   ~ 44 1
47 NVSS J073326+515355 BLL 07 33 26.7912880992 +51 53 55.910791896           ~ 64 0
48 QSO B0737+744 BLL 07 44 05.3750968872 +74 33 58.256429832     16.89 16.6   ~ 144 0
49 RX J0749.4+7451 BLL 07 49 29.5562134632 +74 51 44.707966308     18.90     ~ 33 1
50 1RXS J080458.3-062432 BLL 08 04 57.7391420976 -06 24 26.201080368   18.9   17.0   ~ 31 1
51 RX J0806.4+5931 BLL 08 06 25.9488552792 +59 31 06.910219092       15.7   ~ 64 1
52 PMN J0816-1311 BLL 08 16 27.2037492048 -13 11 52.623678156 17.15 17.09 17.00 16.93   ~ 80 1
53 PMN J0827-0708 BLL 08 27 06.1674878360 -07 08 45.896270800           ~ 34 1
54 SDSS J083724.71+145819.8 BLL 08 37 24.7133427936 +14 58 19.762029480       14.7   ~ 41 1
55 NVSS J090535+135803 BLL 09 05 34.9904763192 +13 58 06.327510888 17.12 16.83 16.82 16.3   ~ 67 1
56 RX J0909.8+3105 BLL 09 09 53.2839851256 +31 06 03.167783208   18.74 17.98     ~ 61 0
57 Ton 1015 BLL 09 10 37.0353299208 +33 29 24.418940568   16.19 15.71 15.9   ~ 100 2
58 RX J0912.5+1555 BLL 09 12 30.6092069976 +15 55 28.012892088       17.4   ~ 47 1
59 1RXS J091714.7-034302 BLL 09 17 14.5955965464 -03 43 14.436960996           ~ 35 0
60 RX J0925.7+5958 BLL 09 25 42.9046376928 +59 58 16.315644540     19.27     ~ 36 0
61 RX J0940.3+6148 BLL 09 40 22.4527825176 +61 48 26.262994536   19.67 18.69 16.9   ~ 71 0
62 RX J0946.3+0104 BLL 09 46 20.2166039496 +01 04 52.099953780   20.92 20.17 19.6   ~ 67 1
63 RX J0952.2+3936 BLL 09 52 14.7062206776 +39 36 15.873340932   20.47 20.23 19.4   ~ 38 0
64 RX J0955.1+3550 BLL 09 55 07.8818398488 +35 51 00.885435048   21.04 20.36 19.1   ~ 68 0
65 1RXS J095806.4-031729 BLL 09 58 05.9867161608 -03 17 40.210851552       18.9   ~ 32 0
66 RX J1006.1+6440 BLL 10 06 12.2278824240 +64 40 11.568599364   19.48 19.00 18.6   ~ 29 1
67 RX J1012.7+4229 BLL 10 12 44.3054821248 +42 29 57.094313532   19.01 18.43     ~ 93 1
68 7C 101354.60+521750.00 BLL 10 17 06.6710434968 +52 02 47.177106252   20.43 19.51 18.3   ~ 32 1
69 RX J1023.6+3001 BLL 10 23 39.7366248552 +30 00 57.751171200   19.31 18.77 18.2   ~ 58 0
70 RX J1031.3+5053 BLL 10 31 18.5251007784 +50 53 35.817278064   17.25 16.98 16.3   ~ 210 2
71 RX J1033.7+3708 BLL 10 33 46.3947713592 +37 08 25.141905816   20.96 20.14     ~ 32 0
72 RX J1041.8+3901 BLL 10 41 49.1517748896 +39 01 19.504469928   19.91 18.77     ~ 55 1
73 RX J1046.8-2535 BLL 10 46 51.4790946960 -25 35 45.973237416       18.3   ~ 43 0
74 RX J1048.9+5010 BLL 10 48 57.6133743624 +50 09 45.261947376   20.78 19.84 18.5   ~ 33 0
75 PB 667 BLL 10 51 25.3596469512 +39 43 25.687370028   19.26 18.77 18.8   ~ 65 0
76 RX J1101.4+4108 BLL 11 01 24.7255808544 +41 08 47.386625064   19.44 18.96     ~ 45 1
77 RX J1103.9+2611 Bla 11 03 57.2998502169 +26 11 19.203908324           ~ 15 0
78 RX J1107.8+1502 BLL 11 07 48.0634235400 +15 02 10.558629456     18.20     ~ 70 1
79 SDSS J111224.60+175121.8 BLL 11 12 24.6107538288 +17 51 21.801119364       18.5   ~ 33 0
80 1RXS J111941.0-304652 BLL 11 19 39.5943677976 -30 47 20.814964404       19.9   ~ 45 0
81 RX J1124.8+4934 BLL 11 24 53.8282836744 +49 34 09.779986740   19.06 18.64     ~ 56 1
82 PMN J1125-0743 BLL 11 25 51.9717660528 -07 42 21.201664500   18.71   17.17   ~ 53 1
83 1RXS J113443.6-172853 BLL 11 34 44.6993489376 -17 29 01.733715888       19.2   ~ 25 0
84 RX J1149.5+2439 BLL 11 49 30.3540653568 +24 39 26.958921660   18.86 18.35 18.1   ~ 58 1
85 RX J1150.5+4154 BLL 11 50 34.7545571856 +41 54 40.046355864   17.58 17.13     ~ 73 1
86 2MASS J11540456-0010096 BLL 11 54 04.5561127560 -00 10 09.869511036   19.08 18.62     ~ 87 0
87 RX J1158.8+0819 BLL 11 58 53.1939112872 +08 19 43.216013352           ~ 29 0
88 RX J1204.2+1145 BLL 12 04 12.1161519696 +11 45 55.333894824   18.63 18.05 16.6   ~ 63 0
89 RX J1211.9+2242 BLL 12 11 58.6306591752 +22 42 32.946579432   19.13 18.66 18.7   ~ 51 0
90 6dFGS gJ121945.7-031424 BLL 12 19 45.7121486064 -03 14 23.984898756   18.57 17.95 17.45   ~ 72 1
91 RX J1223.1+1100 BLL 12 23 07.2414796416 +11 00 38.272957308   20.13 19.84     ~ 24 0
92 RX J1224.4+2436 BLL 12 24 24.1862962656 +24 36 23.499792828   17.93 17.37     ~ 162 1
93 RX J1226.7+0639 BLL 12 26 44.2250718816 +06 38 53.206321596   17.63 17.22     ~ 47 0
94 NVSS J123123+142123 BLL 12 31 23.9056875672 +14 21 24.429803472     17.70 16.9   ~ 75 0
95 RX J1237.6+6258 BLL 12 37 39.0753390528 +62 58 42.801146328   18.89 18.25 17   ~ 116 0
96 RX J1241.6+3440 BLL 12 41 41.3827131720 +34 40 31.005349824   20.21 19.70 19.4   DC 35 0
97 Ton 116 BLL 12 43 12.7362011736 +36 27 43.997592204   17.41 17.11 16.4   ~ 112 1
98 2MASS J12584805-0447450 BLL 12 58 48.0460059168 -04 47 45.263736096     20.40 18.9   ~ 38 0
99 RX J1301.7+4056 BLL 13 01 45.6483002736 +40 56 24.643449456     18.21     ~ 44 0
100 1RXS J131235.1-185908 Bla 13 12 34.7042272715 -18 59 01.307091516           ~ 14 0
101 RX J1315.5+1133 Bla 13 15 32.6158534392 +11 33 31.682583612           ~ 32 1
102 RX J1323.0+0440 BLL 13 23 01.0004175264 +04 39 51.412962744   20.22 18.80     ~ 53 1
103 RX J1323.9+1406 BLL 13 23 58.3628841792 +14 05 59.462518092           ~ 35 0
104 RX J1331.0+5655 BLL 13 31 02.9152240728 +56 55 41.759497704   20.49 19.45     ~ 33 0
105 RX J1340.4+4410 BLL 13 40 29.7996998664 +44 10 03.915874632   19.60 19.03 17.8   ~ 72 1
106 RX J1353.4+5601 BLL 13 53 28.0474623240 +56 00 56.986350984   19.31 18.92 16.4   ~ 43 0
107 RX J1404.8+0402 BLL 14 04 50.9113762032 +04 02 02.209070292   16.93 16.61     ~ 142 1
108 RX J1406.9+1642 BLL 14 06 59.1885066864 +16 42 07.836157008   18.63 18.26 18.5   ~ 42 0
109 RX J1417.9+2543 BLL 14 17 56.6706279264 +25 43 26.244368868   18.00 17.2 14.6   ~ 190 1
110 NVSS J141826-023336 BLL 14 18 26.3272568400 -02 33 34.142899320 16.00 15.85 15.63 16.62   ~ 63 0
111 RX J1419.0+7732 BLL 14 19 00.3556447992 +77 32 29.346440708           ~ 49 1
112 RX J1424.3+3705 BLL 14 24 21.1811236944 +37 05 52.878789528   20.36 19.13     ~ 29 1
113 RX J1436.9+5639 BLL 14 36 57.7190885904 +56 39 24.859811736   18.92 18.51 17.6   ~ 83 0
114 PG 1437+398 BLL 14 39 17.4789214824 +39 32 42.807064020   17.36 17.10 16.5   ~ 125 2
115 2MASS J14403782-3846549 BLL 14 40 37.8231625176 -38 46 54.978605004           ~ 38 0
116 7C 1441+2514 Bla 14 43 56.89220390 +25 01 44.4907165   19.5   19.7   ~ 179 1
117 1RXS J144505.9-032613 BLL 14 45 06.2306796384 -03 26 12.733498104     17.2 17.9   ~ 50 1
118 RX J1451.4+6354 BLL 14 51 27.7354582032 +63 54 19.249726032     19.60 19   ~ 37 1
119 RX J1501.0+2238 BLL 15 01 01.8350446584 +22 38 06.373155444   16.29 15.79     ~ 139 1
120 1RXS J150343.0-154107 BLL 15 03 40.6675186296 -15 41 14.140402188     18.10 17.2   ~ 79 1
121 RX J1507.2+1720 BLL 15 07 16.4108293200 +17 21 02.896352136           ~ 30 0
122 RX J1508.7+2709 BLL 15 08 42.6148930704 +27 09 07.709382576       17.9   ~ 65 1
123 RX J1529.2+3812 BLL 15 29 13.5612494904 +38 12 17.489639232   19.05 18.77     ~ 33 1
124 RX J1533.1+1854 BLL 15 33 11.2518579384 +18 54 29.054401704           ~ 64 0
125 RX J1535.0+5320 BLL 15 35 00.7962236712 +53 20 37.302992988   19.18 18.75 18.8   ~ 73 1
126 RX J1546.0+0819 BLL 15 46 04.2565732872 +08 19 13.431900864           ~ 51 2
127 1RXS J154711.8-280222 BLL 15 47 12.1334067054 -28 02 21.574954693           ~ 28 1
128 RX J1554.4+2011 BLL 15 54 24.1304763192 +20 11 25.399984632     17.70     ~ 112 1
129 PG 1553+113 BLL 15 55 43.0440048528 +11 11 24.365649948 14.91 14.72 14.57 13.99   ~ 672 1
130 RX J1602.2+3050 BLL 16 02 18.0690481440 +30 51 09.537519708   18.56 18.10     ~ 45 1
131 RX J1606.3+5630 BLL 16 06 20.8776138432 +56 30 17.501388876       19.2   ~ 36 0
132 RX J1626.4+3513 BLL 16 26 25.8603470616 +35 13 41.454253488   19.05 18.54 18.1   ~ 66 1
133 RX J1642.3+2211 BLL 16 42 20.3168665176 +22 11 43.397477484   19.37 18.86     ~ 30 0
134 RX J1644.3+4546 BLL 16 44 19.9733510880 +45 46 44.350987764   19.44 18.50 15.2   ~ 70 1
135 RX J1652.8+4022 BLL 16 52 49.9253988240 +40 23 10.106804256   18.98 18.50 17.6   ~ 44 0
136 RX J1702.6+3115 BLL 17 02 38.5361606136 +31 15 43.651519344   19.46 19.03 18.4   ~ 38 1
137 RX J1747.0+4938 BLL 17 47 02.4777986448 +49 38 01.630465440       19.3   ~ 26 0
138 RX J1756.2+5522 BLL 17 56 15.8816206632 +55 22 18.090129072   17.23 16.87 18   ~ 72 1
139 RX J1757.2+7033 BLL 17 57 13.0521071712 +70 33 37.820087172       18   ~ 87 1
140 RX J1838.7+4802 BLL 18 38 49.1550459624 +48 02 34.274232744     17.60 15.671   ~ 89 0
141 1RXS J184822.6+653700 BLL 18 48 22.4966893920 +65 36 57.823557264       18.6   ~ 31 0
142 2MASS J19445517-2143190 BLL 19 44 55.1660261454 -21 43 19.323697347           ~ 31 1
143 PMN J2014-0047 BLL 20 14 28.6431711443 -00 47 22.899671451           ~ 44 1
144 PMN J2016-0903 BLL 20 16 24.0367778290 -09 03 33.467036321           ~ 55 1
145 1RXS J203650.9-332817 Bla 20 36 49.5067800072 -33 28 30.648490788           ~ 38 0
146 1RXS J205528.2-002123 BLL 20 55 28.2308834496 -00 21 17.159442048   18.3 18.07 18.5   ~ 65 1
147 1RXS J213103.5-274702 BLL 21 31 03.2389690560 -27 46 58.010351196     18.30 17.4 17.394 ~ 39 1
148 1RXS J213135.5-091525 BLL 21 31 35.4233915640 -09 15 23.693668272     18.00 17.5   ~ 73 1
149 1RXS J213151.7-251602 BLL 21 31 51.5402789448 -25 15 58.637833884       18.5 17.43 ~ 39 0
150 1RXS J213852.9-205354 BLL 21 38 52.7560723272 -20 53 47.713911720     19.20 17.4   ~ 35 0
151 PMN J2145+0720 BLL 21 45 52.2999532008 +07 19 27.205685508       16   ~ 120 1
152 PHL 1744 BLL 21 46 36.9607739613 -13 44 00.663328644   17.6       ~ 46 0
153 PMN J2150-1411 BLL 21 50 15.5181024144 -14 10 49.960467192   18.65   17.03   ~ 61 0
154 1RXS J215305.2-004227 BLL 21 53 05.3444767848 -00 42 30.732948648   19.14 18.48     ~ 54 1
155 PMN J2221-5224 BLL 22 21 29.3103906816 -52 25 27.833229372 16.81 16.57 16.9 16.7   ~ 58 0
156 1RXS J224911.1-130005 BLL 22 49 10.7315054688 -13 00 03.068180892       18.2   ~ 35 0
157 1RXS J225146.9-320614 BLL 22 51 47.5594856352 -32 06 12.723850044     20.00 18.7   ~ 46 0
158 PMN J2258-5526 BLL 22 58 18.9908859024 -55 25 37.397815356           ~ 61 1
159 1RXS J230722.5-120520 BLL 23 07 22.0954892304 -12 05 17.668798368       19.6   ~ 38 1
160 RX J2324.7-4040 BLL 23 24 44.6723616768 -40 40 49.444171248 15.88 15.72 15.54 16.84   ~ 88 1
161 LEDA 3231681 BLL 23 50 34.3076444448 -30 06 04.457526408   18.738   17.132   ~ 13 1
162 NVSS J235612+403648 Bla 23 56 12.7423370256 +40 36 46.976785524           ~ 40 1

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