2026ApJS..282...35A


Query : 2026ApJS..282...35A

2026ApJS..282...35A - Astrophys. J., Suppl. Ser., 282, 35 (2026/February-0)

Hunting Very High-energy-emitting (>100 GeV) High-synchrotron-peaked Blazars.

AGARWAL S. and PALIYA V.S.

Abstract (from CDS):

Very high-energy (VHE; >100 GeV) γ-ray emission originates via some of the most extreme particle acceleration processes in the Universe. Considering beamed active galactic nuclei, i.e., blazars, only a small fraction, mainly high-synchrotron-peaked BL Lacertae (BL Lac) objects, have been detected in the VHE band with ground-based Cherenkov telescopes. We utilized ∼16 yr of Fermi Large Area Telescope (LAT) observations in the 0.1-2 TeV energy range to systematically search for potential VHE emitters in a sample of high-synchrotron-peaked (${\nu }_{{\rm{syn}}}^{{\rm{peak}}}\gt 1{0}^{15}$ Hz) BL Lac sources. We identified, for the first time, 92 VHE-emitting blazars at a ≥5σ confidence level. A significant VHE emission was also detected from 52 sources previously reported as VHE blazars. Comparing with the general blazar population, these VHE-emitting blazars are found to be located at low redshifts (mean z = 0.2 ± 0.1) and exhibit bright synchrotron emission (${\mathrm{log}}{F}_{{\rm{syn}}}^{{\rm{peak}}}=-11.2\pm 0.4$, in erg cm–2 s–1). We also investigated the coincidence of VHE photon arrivals with the source activity states and found that Fermi-LAT has detected VHE photons during both quiescent and elevated activity epochs. These VHE-emitting blazars represent promising targets for current and next-generation ground-based Cherenkov telescopes, and provide powerful laboratories for probing particle acceleration in relativistic jets, testing multimessenger connections, and constraining extragalactic background light models.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): BL Lacertae objects - Blazars - High energy astrophysics - Relativistic jets - Supermassive black holes - Catalogs

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR. // All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 114

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Number of rows : 114
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 2MASX J00135605-1854066 BLL 00 13 56.0426451480 -18 54 06.702770232   17.01   15.82   ~ 86 1
2 1RXS J001442.2+580201 BLL 00 14 42.1250143528 +58 02 01.219861211           ~ 29 0
3 RX J0015.6+5551 BLL 00 15 40.1501873433 +55 51 44.665947351           ~ 40 1
4 RX J0022.0+0006 BLL 00 22 00.9557660688 +00 06 57.945375828   20.56 19.63     ~ 52 0
5 KUV 00311-1938 BLL 00 33 34.3800569400 -19 21 33.134193864       16.6   ~ 125 0
6 RX J0035.8+5950 BLL 00 35 52.6448284115 +59 50 04.513482441     19.5 17.2   ~ 195 1
7 1RXS J004754.5+544758 BLL 00 47 52.0376461233 +54 47 45.909202284           ~ 25 0
8 PMN J0051-6242 BLL 00 51 16.6464761530 -62 42 04.408098612 17.50 17.42 17.38   16.493 ~ 59 1
9 RX J0115.7+2520 BLL 01 15 46.1420552904 +25 19 53.344003368 18.08 17.88 18.52     ~ 85 1
10 2MASS J01233839-2310585 BLL 01 23 38.3498181576 -23 10 58.873955124     19.00 17.6   ~ 43 1
11 RX J0131.1+6120 BLL 01 31 07.2257589038 +61 20 33.372505609           ~ 54 0
12 1RXS J013632.9+390556 BLL 01 36 32.5983798936 +39 05 59.199517428       15.5   ~ 146 2
13 RX J0137.7+5814 BLL 01 37 50.4761854680 +58 14 11.321731860           ~ 66 2
14 SUMSS J014347-584550 BLL 01 43 47.4327895920 -58 45 51.366823488         16.442 ~ 57 1
15 PMN J0152+0146 BLL 01 52 39.6109440384 +01 47 17.385104112       11.8   ~ 155 1
16 2MASS J01530732+7517429 BLL 01 53 07.3819815144 +75 17 42.924650784     18.90 18.3   ~ 33 0
17 PMN J0156-5302 BLL 01 56 58.0038753524 -53 01 59.958409848 18.53 18.36 18.46     ~ 60 1
18 PMN J0209-5229 BLL 02 09 21.6157612080 -52 29 22.788843756 17.30 17.00 16.69 14.5   ~ 62 1
19 RX J0212.3-0222 Bla 02 12 16.8834524928 -02 21 55.817658756           ~ 22 0
20 RX J0214.2+5144 BLL 02 14 17.9358553848 +51 44 51.945795816       16.5   ~ 133 1
21 RX J0216.5+2314 BLL 02 16 32.0944044336 +23 14 50.353758528       18.4   ~ 36 0
22 RX J0232.8+2017 BLL 02 32 48.6148874688 +20 17 17.486717388     18.00 13.96   ~ 387 1
23 1RXS J024439.8-581953 BLL 02 44 40.3008303168 -58 19 54.629552928   18.66   17.05   ~ 60 0
24 ZW V 326 BLL 03 12 50.2876842864 +36 15 19.539047556     17.60     ~ 50 1
25 RX J0316.1+0904 BLL 03 16 12.7326021672 +09 04 43.281750684       17.2   ~ 73 1
26 LEDA 398865 Bla 03 25 22.67270 -56 29 04.9753       17.9   ~ 58 0
27 1RXS J033623.3-034727 BLL 03 36 23.8026141624 -03 47 38.594258592   18.53   16.91   ~ 38 0
28 NVSS J033859-284619 BLL 03 38 59.5833592026 -28 46 19.734768082           ~ 22 0
29 LEDA 135030 BLL 03 39 13.7028495360 -17 36 00.782534268   16.27       ~ 78 1
30 QSO B0347-121 BLL 03 49 23.1862105584 -11 59 27.366035532   18.74 18.2 17.46   ~ 245 1
31 RX J0350.0+0640 BLL 03 49 57.8422507176 +06 41 26.196005796   19.3 19.14     ~ 27 1
32 PKS J0352-6831 BLL 03 52 57.4833917712 -68 31 17.019422256   13.7   12.3   ~ 81 1
33 PMN J0448-1632 BLL 04 48 37.6263575616 -16 32 43.246837104 17.77   17.59 16.6   ~ 61 1
34 AX J0050.3+5238 BLL 05 00 21.4163213773 +52 38 02.158896356           ~ 31 1
35 RX J0506.0+6113 BLL 05 05 58.7847983400 +61 13 35.957739216           ~ 50 2
36 RX J0507.9+6737 BLL 05 07 56.1631660632 +67 37 24.225299292       17.2   ~ 196 1
37 1RXS J051631.7+735115 BLL 05 16 31.2308430864 +73 51 08.659789740           ~ 46 1
38 1RXS J054030.8+582339 BLL 05 40 30.0094967101 +58 23 38.459367179       16.065   ~ 51 1
39 PMN J0544-5532 BLL 05 43 57.2123766984 -55 32 07.327939200 17.34 17.18 17.09 16.5   ~ 84 1
40 1RXS J060014.8+124341 Bla 06 00 14.9961644636 +12 43 43.180285042           ~ 22 1
41 RX J0620.6+2643 BLL 06 20 40.0590573192 +26 43 31.898449668           ~ 38 1
42 PMN J0640-1253 BLL 06 40 07.1821661088 -12 53 15.408624624           ~ 52 1
43 1RXS J065033.9+205603 BLL 06 50 35.3520080787 +20 55 57.363171447           ~ 23 0
44 NVSS J072348+205131 BLL 07 23 48.3422454960 +20 51 30.778951284           ~ 35 1
45 PMN J0730-6602 BLL 07 30 49.5588000264 -66 02 18.881436948   17.98   16.44   ~ 46 1
46 QSO B0737+744 BLL 07 44 05.3750968872 +74 33 58.256429832     16.89 16.6   ~ 144 0
47 PMN J0746-4755 BLL 07 46 42.3051126696 -47 54 55.164019968           ~ 42 1
48 1RXS J074725.1-492626 BLL 07 47 24.7487371977 -49 26 33.292444057           ~ 26 0
49 RX J0805.4+7534 BLL 08 05 26.6463654144 +75 34 25.040530200       15.2   ~ 69 1
50 PMN J0816-1311 BLL 08 16 27.2037492048 -13 11 52.623678156 17.15 17.09 17.00 16.93   ~ 80 1
51 PMN J0847-2337 Bla 08 47 01.5666850056 -23 37 01.670193084       13   ~ 65 1
52 RX J0847.2+1133 BLL 08 47 12.9303893448 +11 33 50.153057640       16.6   ~ 121 1
53 1RXS J093430.2-172117 BLL 09 34 30.1620445536 -17 21 21.470293944   20.32 18.10 18.95   ~ 35 0
54 RX J0940.3+6148 BLL 09 40 22.4527825176 +61 48 26.262994536   19.67 18.69 16.9   ~ 71 0
55 RX J0952.4+7502 BLL 09 52 24.2117512536 +75 02 13.168604688     19.90 15.6   ~ 37 0
56 RX J0953.1-7657 BLL 09 53 04.3615472853 -76 58 02.120566089           ~ 38 0
57 RX J1037.7+5711 BLL 10 37 44.3078432736 +57 11 55.629345156   17.05 16.54 16.7   ~ 131 1
58 PMN J1103-2329 BLL 11 03 37.6150845072 -23 29 31.203773520   17.00 16.55 16.61   ~ 405 1
59 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
60 RX J1117.1+2014 BLL 11 17 06.2512673640 +20 14 07.380923028           ~ 159 1
61 RX J1120.7+4212 BLL 11 20 48.0624161160 +42 12 12.465387612   17.55 17.11 16.9   ~ 130 2
62 PMN J1130-7801 BLL 11 30 31.9491810471 -78 01 05.537610658           ~ 34 1
63 PMN J1203-3926 BLL 12 03 17.8841329030 -39 26 21.070223927           ~ 36 1
64 RX J1230.2+2518 BLL 12 30 14.0893292232 +25 18 07.136022996   15.6   14.78   ~ 177 1
65 1RXS J124015.2-714859 BLL 12 40 21.1849275886 -71 48 57.789188630           ~ 36 1
66 Ton 116 BLL 12 43 12.7362011736 +36 27 43.997592204   17.41 17.11 16.4   ~ 112 1
67 2FGL J1256.5-1145 BLL 12 56 15.9520325496 -11 46 37.335959904   16.39   15.07   ~ 67 1
68 RX J1340.4+4410 BLL 13 40 29.7996998664 +44 10 03.915874632   19.60 19.03 17.8   ~ 72 1
69 7C 1338+4015 BLL 13 41 05.1067840920 +39 59 45.418368768   18.93 18.24 14.9   ~ 91 2
70 PMN J1353-6640 Bla 13 53 40.14159 -66 39 57.6631           ~ 40 1
71 NVSS J141826-023336 BLL 14 18 26.3272568400 -02 33 34.142899320 16.00 15.85 15.63 16.62   ~ 63 0
72 2MASS J14403782-3846549 BLL 14 40 37.8231625176 -38 46 54.978605004           ~ 38 0
73 RX J1442.8+1200 BLL 14 42 48.2771008152 +12 00 40.348597716   18.34 17.63 15.2   ~ 189 1
74 RX J1448.0+3608 BLL 14 48 00.5826450192 +36 08 31.165443852   17.31 16.88 16.2   ~ 89 1
75 PMN J1506+0814 BLL 15 06 44.4736388448 +08 14 00.721409964       17   ~ 53 2
76 PMN J1518-2731 BLL 15 18 03.6003266832 -27 31 31.191934728           ~ 72 1
77 RX J1540.2+8155 BLL 15 40 15.8786533752 +81 55 05.781420660       15.8   ~ 90 1
78 1RXS J154203.2-291516 Bla 15 42 03.0838729272 -29 15 08.999709228           ~ 29 0
79 PMN J1548-2251 BLL 15 48 49.7496670200 -22 51 02.517679080       15.9   ~ 64 1
80 2FGL J1553.5-3116 BLL 15 53 33.5452374288 -31 18 31.423004316       15.7   ~ 53 1
81 PMN J1610-6649 BLL 16 10 46.4616120633 -66 49 01.270817318       16.8   ~ 63 1
82 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
83 1RXS J174357.3+193505 BLL 17 43 57.8330083440 +19 35 09.018846384     16.80 12.7   ~ 190 1
84 1RXS J174459.5-172640 BLL 17 44 59.7929954069 -17 26 36.532260357           ~ 30 1
85 RX J1756.2+5522 BLL 17 56 15.8816206632 +55 22 18.090129072   17.23 16.87 18   ~ 72 1
86 7C 180718.39+642858.00 BLL 18 07 32.1722572560 +64 29 26.287089936           ~ 32 1
87 7C 181142.79+314318.00 BLL 18 13 35.2028439312 +31 44 17.620234836     17.4 15.2   ~ 116 1
88 PMN J1823-3453 BLL 18 23 38.5909469504 -34 54 12.040672189           ~ 56 1
89 RX J1838.7+4802 BLL 18 38 49.1550459624 +48 02 34.274232744     17.60 15.671   ~ 89 0
90 1RXS J184230.6-584202 BLL 18 42 29.8182908406 -58 41 57.947264504         17.709 ~ 39 0
91 1RXS J184919.7-164726 BLL 18 49 19.4661071194 -16 47 23.815576255           ~ 26 1
92 1RXS J185024.6+263159 Bla 18 50 24.0290262072 +26 31 53.688230364           ~ 21 0
93 RX J1904.2+3627 BLL 19 04 11.8663392936 +36 26 58.921335672           ~ 39 1
94 NVSS J191129-190823 BLL 19 11 29.7453785851 -19 08 24.638682574           ~ 44 1
95 87GB 192614.4+614823 BLL 19 26 49.8911645880 +61 54 42.345978048           ~ 54 1
96 RX J1931.1+0937 BLL 19 31 09.1653044561 +09 37 16.290078423           ~ 61 0
97 PMN J1933+0726 BLL 19 33 20.3032558244 +07 26 21.865764808           ~ 43 1
98 PMN J1936-4719 BLL 19 36 56.1055840632 -47 19 50.258710776   18.91   17.38   ~ 62 1
99 1RXS J194246.3+103339 BLL 19 42 47.4841298280 +10 33 27.102911688           ~ 63 1
100 1RXS J194356.1+211731 Bla 19 43 56.24400 +21 18 23.3784           ~ 99 1
101 2MASS J19445517-2143190 BLL 19 44 55.1660261454 -21 43 19.323697347           ~ 31 1
102 1RXS J195503.1-564031 BLL 19 55 02.8617649615 -56 40 28.814904257           ~ 41 1
103 1RXS J195815.6-301119 BLL 19 58 14.9123511384 -30 11 11.646174444   17.88   16.16   ~ 61 1
104 QSO B1959+650 BLL 19 59 59.8520303688 +65 08 54.652536492     12.8 11.21   ~ 699 2
105 MAGIC J2001+435 BLL 20 01 12.8737326408 +43 52 52.840241616   15.6   15   ~ 108 1
106 1RXS J202633.4+764432 BLL 20 26 30.7894405659 +76 44 48.488456231           ~ 28 0
107 LEDA 621219 Bla 20 41 50.2441037088 -37 33 39.982399236   17.45   15.95   ~ 33 1
108 1RXS J205528.2-002123 BLL 20 55 28.2308834496 -00 21 17.159442048   18.3 18.07 18.5   ~ 65 1
109 1RXS J210421.1-021233 BLL 21 04 21.9297718701 -02 12 39.017772325           ~ 32 1
110 1RXS J215305.2-004227 BLL 21 53 05.3444767848 -00 42 30.732948648   19.14 18.48     ~ 54 1
111 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1
112 RX J2247.8+4413 BLL 22 47 53.2057635432 +44 13 15.393598068           ~ 52 1
113 1RXS J232243.7+343616 BLL 23 22 44.0142017808 +34 36 13.873220208       13.2   ~ 87 1
114 1RXS J234332.5+343957 BLL 23 43 33.5859477792 +34 39 50.949452160           ~ 56 1

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