2024MNRAS.528.5990S

Query : 2024MNRAS.528.5990S

2024MNRAS.528.5990S - Mon. Not. R. Astron. Soc., 528, 5990-6009 (2024/March-2)

Broad-band study of gamma-ray blazars at redshifts z = 2.0-2.5.

SAHAKYAN N., HARUTYUNYAN G., GASPARYAN S. and ISRAYELYAN D.

Abstract (from CDS):

High redshift blazars are among the most powerful non-explosive sources in the Universe and play a crucial role in understanding the evolution of relativistic jets. To understand these bright objects, we performed a detailed investigation of the multiwavelength properties of 79 γ-ray blazars with redshifts ranging from z = 2.0 to 2.5, using data from Fermi LAT, Swift XRT/UVOT, and NuSTAR observations. In the γ-ray band, the spectral analysis revealed a wide range of flux and photon indices, from 5.32 × 10–10 to 3.40 × 10–7 photon cm–2 s–1 and from 1.66 to 3.15, respectively, highlighting the diverse nature of these sources. The detailed temporal analysis showed that flaring activities were observed in 31 sources. Sources such as 4C+71.07, PKS 1329-049, and 4C + 01.02, demonstrated significant increase in the γ-ray luminosity and flux variations, reaching peak luminosity exceeding 1050 erg s–1. The temporal analysis extended to X-ray and optical/ultraviolet (UV) bands, showed clear flux changes in some sources in different observations. The time-averaged properties of high redshift blazars were derived through modeling the spectral energy distributions with a one-zone leptonic scenario, assuming the emission region is within the broad-line region (BLR) and the X-ray and γ-ray emissions are due to inverse Compton scattering of synchrotron and BLR-reflected photons. This modeling allowed us to constrain the emitting particle distribution, estimate the magnetic field inside the jet, and evaluate the jet luminosity, which is discussed in comparison with the disc luminosity derived from fitting the excess in the UV band.

Abstract Copyright: © 2024 Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): radiation mechanisms: non-thermal - galaxies: active - gamma-rays: galaxies - X-rays: galaxies

Simbad objects: 117

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Number of rows : 117
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 SDSS J000359.23+084138.1 BLL 00 03 59.2306767898 +08 41 38.200805464           ~ 21 1
2 [VV2006] J003906.3-094247 QSO 00 39 06.29166353 -09 42 46.8896508   21.40 20.87     ~ 62 1
3 4C 01.02 Bla 01 08 38.77110544 +01 35 00.3171844   18.54 18.39 19.05   ~ 589 1
4 PSO J021.2103-06.4169 BLL 01 24 50.4851504351 -06 25 00.943106646       18.4   ~ 46 1
5 QSO J0134-3843 Bla 01 34 32.0301210552 -38 43 33.386211696   17.76   17.71   ~ 61 1
6 AT20G J015751-461423 Bla 01 57 51.11586 -46 14 23.2611       21.40   ~ 63 1
7 6C 021252+733537 BLL 02 17 30.81335327 +73 49 32.6217355     19.00 18.97   ~ 485 1
8 QSO B0226-559 Bla 02 28 21.5992002288 -55 46 03.292197564     19.0 19.76   ~ 55 1
9 QSO B0227-369 Bla 02 29 28.44905708 -36 43 56.8223412     19.0 20.4   ~ 113 1
10 4C 13.14 Bla 02 31 45.89405619 +13 22 54.7162847   17.96 17.71 17.93   ~ 291 1
11 4FGL J0231.8+1322 AG? 02 31 50.8 +13 22 09           ~ 18 0
12 ICRF J024516.8+240535 Bla 02 45 16.85598149 +24 05 35.1729817   19.5   18.8   ~ 84 1
13 1RXS J032342.6-011131 BLL 03 23 43.6189299792 -01 11 46.206256992 17.67 17.48 16.96 17.4   ~ 27 1
14 1FGL J0323.7-0106 mul 03 23 45.3 -01 11 25           ~ 57 0
15 QSO J0325+2224 Bla 03 25 36.81435345 +22 24 00.3656161     18.90 19.14   ~ 135 1
16 4FGL J0347.0+4844 AG? 03 47 00.6 +48 44 15           ~ 16 0
17 ICRF J034711.6+484237 Bla 03 47 11.61335546 +48 42 37.4733046           ~ 12 0
18 QSO B0400+258 Bla 04 03 05.58608082 +26 00 01.5027775     18 19.00   ~ 220 1
19 4FGL J0403.3+2601 AG? 04 03 21.4 +26 01 14           ~ 15 0
20 QSO B0420+022 BLL 04 22 52.21465085 +02 19 26.9307480     19.5 19.41   ~ 115 1
21 QSO B0437-454 BLL 04 39 00.85466368 -45 22 22.5631875   20.44 20.6 19.48   ~ 121 1
22 QSO B0446+113 BLL 04 49 07.67110194 +11 21 28.5963618     20.00 18.58   ~ 305 1
23 4C -02.19 Bla 05 01 12.80988538 -01 59 14.2564557   19.1 18.06 19.04   ~ 624 1
24 PMN J0509+0541 BLL 05 09 25.9644373872 +05 41 35.333820420 15.32 14.95 14.78 15.12   ~ 589 2
25 QSO J0530+13 Bla 05 30 56.41674741 +13 31 55.1494688     20.00 19.35   ~ 1004 1
26 QSO B0549-575 Bla 05 50 09.58019747 -57 32 24.3965358   20.26 19.5 18.81   ~ 56 1
27 4FGL J0550.3-5733 AG? 05 50 20.3 -57 33 13           ~ 12 0
28 7C 055201.39+394824.00 Bla 05 55 30.80561419 +39 48 49.1649683     18.30 17.5   ~ 527 2
29 4FGL J0555.6+3947 AG? 05 55 36.4 +39 47 16           ~ 20 0
30 ICRF J060111.2-703608 Bla 06 01 11.2488493488 -70 36 08.802829692           ~ 117 2
31 ICRF J062552.2-543850 Bla 06 25 52.2308551104 -54 38 50.708996916       18.95   ~ 70 1
32 4FGL J0728.0-4740 AG? 07 28 04.0 -47 40 12           ~ 5 0
33 [VV2006] J072823.5-474516 Bla 07 28 23.51373 -47 45 17.0233     22.40 20   ~ 24 1
34 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 1045 1
35 QSO B0738+491 Bla 07 42 02.74895098 +49 00 15.6089311   22.33 21.75 21.33   ~ 62 1
36 4FGL J0742.1+4902 AG? 07 42 08.7 +49 02 34           ~ 21 0
37 ICRF J074320.4-561932 Bla 07 43 20.4846975000 -56 19 32.958109236   19.38   19.44   ~ 43 1
38 4FGL J0806.5+4503 AG? 08 06 30.8 +45 03 38           ~ 20 0
39 6C 080308+451300 Bla 08 06 33.47254918 +45 04 32.2727960   19.83 19.54 19.39   ~ 64 1
40 NVSS J080941+534124 Bla 08 09 41.7314407307 +53 41 25.085077319       19.62   ~ 84 1
41 4C 71.07 Bla 08 41 24.36528508 +70 53 42.1730435     17.30 16.8   ~ 818 1
42 ATO J135.6121+20.8462 BLL 09 02 26.9116467072 +20 50 46.396146264 16.91 16.74 16.69 17.4   ~ 60 1
43 6C 091740+445437 Bla 09 20 58.45848666 +44 41 53.9850947   18.40 18.16 16.55   ~ 407 1
44 4FGL J1003.4+0205 BLL 10 03 26.6372116104 +02 04 55.633275840   19.0 19.58 18.9   ~ 28 0
45 [VV98] J104609.1-292036 QSO 10 45 40.6258416480 -29 27 26.335017288     19.40     ~ 57 1
46 87GB 105148.6+222705 BLL 10 54 30.6250887672 +22 10 54.796074852 17.67 17.39 17.20 17.1   ~ 68 1
47 6C 105327+702759 Bla 10 56 53.61750640 +70 11 45.9155652   18.5 18.5 19.32   ~ 124 1
48 RX J1057.1+5510 Bla 10 57 07.4774341848 +55 10 32.202410280           ~ 19 1
49 ICRF J111432.5-081639 Bla 11 14 32.55065710 -08 16 39.0032289       20.90   ~ 30 1
50 4FGL J1114.5-0819 AG? 11 14 34.1 -08 19 21           ~ 11 0
51 4C 12.39 Bla 11 18 57.30143432 +12 34 41.7179609   19.39 19.25 19.10   ~ 267 1
52 4FGL J1119.0+1235 AG? 11 19 03.7 +12 35 12           ~ 21 0
53 7C 113623.30+404933.00 QSO 11 39 02.73424186 +40 32 54.8414557   20.42 20.25     ~ 50 1
54 4FGL J1139.0+4033 Bz? 11 39 03.3 +40 33 42           ~ 15 0
55 QSO B1149-084 Bla 11 52 17.20951637 -08 41 03.3139769     18.50 18   ~ 123 1
56 6C 115551+484221 Bla 11 58 26.76951190 +48 25 16.2295188   20.55 20.41 19.86   ~ 59 2
57 4FGL J1158.5+4824 AG? 11 58 32.8 +48 24 58           ~ 19 0
58 SDSS J120542.82+332146.9 QSO 12 05 42.827 +33 21 46.95           ~ 3 0
59 3FGL J1205.9+3315 Bla 12 05 50.3 +33 21 17           ~ 22 0
60 QSO B1318-263 Bla 13 21 14.03692236 -26 36 10.4646221   21.10   21.4   ~ 43 1
61 4FGL J1321.3-2641 AG? 13 21 19.6 -26 41 59           ~ 16 0
62 7C 132221.89+475852.00 Bla 13 24 29.34246541 +47 43 20.6244152   21.13 20.89 20.60   ~ 42 1
63 4FGL J1324.9+4748 AG? 13 24 57.6 +47 48 31           ~ 11 0
64 QSO J1332-0509 Bla 13 32 04.46468002 -05 09 43.3058094     18.5 18.37   ~ 169 1
65 ICRF J134414.4-172340 Bla 13 44 14.40245387 -17 23 40.3956453       19.55   ~ 109 1
66 7C 134328.69+450758.00 Bla 13 45 33.17247907 +44 52 59.5725560       19.6   ~ 138 1
67 [VV96] J135104.4+003119 Bla 13 51 04.4343223609 +00 31 19.506369980     21.9 21.2   ~ 57 1
68 QSO B1351-018 Bla 13 54 06.89532721 -02 06 03.1904962   20.62 19.91 19.277   ~ 177 1
69 4FGL J1402.6-3330 AG? 14 02 39.6 -33 30 16           ~ 16 0
70 PMN J1402-3334 Bla 14 02 41.3310 -33 34 07.691     23.00 20.5   ~ 12 1
71 QSO B1412-096 Bla 14 15 20.83393426 -09 55 58.3305593     17.50 18.6   ~ 60 1
72 4FGL J1428.3+5635 AG? 14 28 19.9 +56 35 41           ~ 12 0
73 7C 142652.20+564942.00 QSO 14 28 24.7555 +56 36 11.242   19.63 19.50     ~ 31 1
74 QSO B1430-178 Bla 14 32 57.69062795 -18 01 35.2488081   17.8 19.5 18.4   ~ 95 1
75 4FGL J1433.0-1801 AG? 14 33 00.8 -18 01 11           ~ 17 0
76 6C 143651+372332 Bla 14 38 53.61097349 +37 10 35.4166935       19.11   ~ 98 1
77 [VV2006] J145100.0+520111 BLL 14 50 59.9882223456 +52 01 11.714469096   19.39 19.02 19.2   ~ 68 2
78 4FGL J1454.0+4927 Bz? 14 54 05.9 +49 27 32           ~ 16 0
79 SDSS J145412.85+492640.4 QSO 14 54 12.8493 +49 26 40.378           ~ 12 1
80 QSO B1508+572 QSO 15 10 02.92237321 +57 02 43.3759220   22.73 21.38 19.23   ~ 223 1
81 9C J1521+4336 Bla 15 21 49.61387806 +43 36 39.2681695   19.30 18.95 18.09   ~ 129 1
82 ICRF J153939.1+274438 Bla 15 39 39.13713864 +27 44 38.2113620   19.13 18.76 17.29   ~ 118 1
83 4FGL J1627.3+4758 Bz? 16 27 23.8 +47 58 56           ~ 15 0
84 SDSS J162746.20+480324.9 QSO 16 27 46.2130925954 +48 03 24.939298162           ~ 12 1
85 7C 1645+6335 Bla 16 45 58.55268458 +63 30 10.9228284   19.87 19.77 19.5   ~ 80 1
86 2MASS J16561677-3302127 Bla 16 56 16.78 -33 02 12.7   18.4 17.8 17.5   ~ 90 0
87 [VV2006] J172240.0+610559 Bla 17 22 40.05935485 +61 05 59.7873567   19.35 19.07 19.42   ~ 70 1
88 ICRF J173628.5+063147 Bla 17 36 28.58371178 +06 31 47.5266928       20.70   ~ 58 1
89 4FGL J1747.4+2330 AG? 17 47 28.5 +23 30 17           ~ 5 0
90 [VV98] J174750.1+232439 Bla 17 47 50.0546 +23 24 39.714     19.90 17.8   ~ 16 1
91 [VV2006] J191916.6-454338 Bla 19 19 16.6923889512 -45 43 38.581901868     21.00 18.8   ~ 27 1
92 4FGL J1919.4-4550 AG? 19 19 25.1 -45 50 38           ~ 5 0
93 AT20G J195913-424607 Bla 19 59 13.2766751832 -42 46 07.517478900       19.79   ~ 69 1
94 [VV96] J202510.8+031645 Bla 20 25 09.63216676 +03 16 44.5045130     19.4 20.09   ~ 43 1
95 4FGL J2025.2+0317 AG? 20 25 14.0 +03 17 21           ~ 14 0
96 4FGL J2108.5+1434 AG? 21 08 35.4 +14 34 52           ~ 14 0
97 OHIO X 110 Rad 21 08 45.59 +14 24 05.1           ~ 4 0
98 4FGL J2114.8+2831 AG? 21 14 52.0 +28 31 20           ~ 12 0
99 ICRF J211458.3+283257 Bla 21 14 58.33362526 +28 32 57.1966465   18.6   18.91   ~ 48 1
100 ICRF J212100.6+190128 Bla 21 21 00.60664506 +19 01 28.2791111       20.3   ~ 89 1
101 AT20G J213520-500651 Bla 21 35 20.1514436040 -50 06 51.727733712           ~ 63 1
102 QSO B2149-306 Bla 21 51 55.52396937 -30 27 53.6980880   17.95 18.0 17.48   ~ 281 1
103 S3 2214+30 Rad 22 16 43.6 +31 02 35           ~ 4 0
104 4FGL J2216.8+3103 AG? 22 16 48.6 +31 03 32           ~ 11 0
105 4C 00.81 Bla 22 26 46.53701435 +00 52 11.3314982   21.64 20.97 19.62   ~ 93 1
106 4FGL J2226.8+0051 AG? 22 26 51.0 +00 51 44           ~ 20 0
107 NVSS J222752+004446 rG 22 27 43.65 +00 57 30.0           ~ 39 0
108 2MASS J22275812+0037055 BLL 22 27 58.1313623424 +00 37 05.426018868   18.00 17.46 18.5   ~ 35 2
109 QSO B2244-372 QSO 22 47 03.91732859 -36 57 46.3041035   18.70 19     ~ 59 1
110 4FGL J2247.5-3700 AG? 22 47 35.2 -37 00 15           ~ 13 0
111 QSO B2245-328 Bla 22 48 38.68573790 -32 35 52.1881477   18.38 18.6 18.63   ~ 132 1
112 QSO B2315-172 Bla 23 18 11.36139535 -16 59 29.1882572     19.5 19.7   ~ 31 1
113 3FGL J2318.6+1912 Bla 23 18 13.6 +19 15 22           ~ 22 0
114 BWE 2315+1858 QSO 23 18 22.9075445520 +19 14 52.160446212           ~ 12 1
115 4FGL J2318.6-1657 AG? 23 18 38.5 -16 57 22           ~ 5 0
116 ICRF J232339.1-061759 QSO 23 23 39.11376282 -06 17 59.2393982           ~ 25 1
117 4FGL J2323.6-0617 AG? 23 23 39.8 -06 17 43           ~ 18 0

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