2024MNRAS.529.1019D

Query : 2024MNRAS.529.1019D

2024MNRAS.529.1019D - Mon. Not. R. Astron. Soc., 529, 1019-1034 (2024/April-1)

High energy gamma-ray sources in the VVV survey - II. The AGN counterparts.

DONOSO L.G., PICHEL A., BARAVALLE L.D., ALONSO M.V., SCHMIDT E.O., MINNITI D., MASETTI N., SMITH L.C., LUCAS P.W., VILLALON C., ROVERO A.C. and COLDWELL G.

Abstract (from CDS):

We identified Active Galactic Nuclei (AGN) candidates as counterparts to unidentified gamma-ray sources (UGS) from the Fermi-LAT Fourth Source Catalogue at lower Galactic latitudes. Our methodology is based on the use of near- and mid-infrared photometric data from the VISTA Variables in the Vía Láctea (VVV) and Wide-field Infrared Survey Explorer (WISE) surveys. The AGN candidates associated with the UGS occupy very different regions from the stars and extragalactic sources in the colour space defined by the VVV and WISE infrared colours. We found 27 near-infrared AGN candidates possibly associated with 14 Fermi-LAT sources using the VVV survey. We also found 2 blazar candidates in the regions of 2 Fermi-LAT sources using WISE data. There is no match between VVV and WISE candidates. We have also examined the Ks light curves of the VVV candidates and applied the fractional variability amplitude (σrms) and the slope of variation in the Ks passband to characterise the near-infrared variability. This analysis shows that more than 85 per cent of the candidates have slopes in the Ks passband >10–4 mag/day and present σrms values consistent with a moderate variability. This is in good agreement with typical results seen from type-1 AGN. The combination of YJHKs colours and Ks variability criteria was useful for AGN selection, including its use in identifying counterparts to Fermi γ-ray sources.

Abstract Copyright: © The Author(s) 2024. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): galaxies: active - infrared: galaxies - surveys - catalogues

Simbad objects: 109

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Number of rows : 109
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 PSR J1203-6242 Psr 12 03 55.3491211 -62 42 44.785767           ~ 18 0
2 1FGL J1317.5-6318c gam 13 17 31.3 -63 16 43           ~ 16 0
3 2FGL J1329.7-6108 gam 13 29 48.42 -61 05 07.2           ~ 19 0
4 PSR J1447-5757 Psr 14 46 10.65 -57 54 58.2           ~ 16 0
5 3FGL J1456.7-6046 gam 14 56 45.1 -60 50 19           ~ 12 0
6 4FGL J1506.5-5708 gam 15 06 32.6 -57 08 51           ~ 5 0
7 4FGL J1622.0-5157c Q? 16 22 02.4 -51 57 05           ~ 5 0
8 4FGL J1622.5-4726 gam 16 22 32.4 -47 26 06           ~ 5 0
9 3FGL J1628.4-4546 gam 16 28 36.6 -45 53 47           ~ 8 0
10 2FGL J1639.8-4921c BLL 16 40 18.6 -49 17 19           ~ 15 0
11 2EG J1653-4604 Bz? 16 57 47.5 -45 20 18           ~ 29 1
12 4FGL J1712.9-4105 gam 17 12 56.8 -41 05 43           ~ 6 0
13 1FGL J1715.2-3319 gam 17 14 57.1 -33 24 49           ~ 17 0
14 4FGL J1717.5-4022 gam 17 17 34.6 -40 22 44           ~ 6 0
15 2AGL J1720-3859 gam 17 21.7 -39 17           ~ 13 0
16 4FGL J1722.1-3205 gam 17 22 06.7 -32 05 16           ~ 7 0
17 4FGL J1726.8-2659 gam 17 26 50.8 -26 59 56           ~ 7 0
18 4FGL J1730.3-2913 gam 17 30 18.4 -29 13 49           ~ 7 0
19 4FGL J1730.8-3806 gam 17 30 53.3 -38 06 47           ~ 6 0
20 4FGL J1731.9-2719 Bz? 17 31 55.7 -27 19 46           ~ 10 0
21 2FGL J1731.9-2703c BLL 17 32 00.0 -26 59 20           ~ 13 0
22 2FGL J1733.2-2913c gam 17 33 18.55 -29 13 46.9           ~ 14 0
23 4FGL J1734.0-2933 gam 17 34 03 -29 33.1           ~ 11 0
24 4FGL J1734.5-2818 gam 17 34 35.5 -28 18 08           ~ 8 0
25 PSR J1736-3422 Psr 17 36 10.8984375 -34 22 19.041138           ~ 11 0
26 WISE J173612.08-342204.6 MIR 17 36 12.088 -34 22 04.66           ~ 1 0
27 4FGL J1737.2-2421 gam 17 37 13.9 -24 21 59           ~ 6 0
28 4FGL J1737.3-3332 gam 17 37 22.3 -33 32 01           ~ 8 0
29 4FGL J1738.1-2453 gam 17 38 10.2 -24 53 37           ~ 6 0
30 4FGL J1738.8-3418 Bz? 17 38 53.4 -34 18 36           ~ 10 0
31 4FGL J1739.3-2531 gam 17 39 20.8 -25 31 34           ~ 8 0
32 2FGL J1739.6-2726 gam 17 39 31.22 -27 27 45.3           ~ 20 0
33 VVV J173934.82-283746.5 NIR 17 39 34.82 -28 37 46.5           ~ 1 0
34 4FGL J1739.7-2836 gam 17 39 44.4 -28 36 08           ~ 8 0
35 3FGL J1740.5-2642 gam 17 40 44.6 -26 40 37           ~ 15 0
36 4FGL J1741.1-3328 gam 17 41 10.4 -33 28 04           ~ 5 0
37 4FGL J1741.3-3357 gam 17 41 22.8 -33 57 23           ~ 7 0
38 4FGL J1742.8-2246 gam 17 42 53.9 -22 46 18           ~ 7 0
39 4FGL J1743.4-2406 gam 17 43 28.2 -24 06 14           ~ 7 0
40 4FGL J1743.6-3341 gam 17 43 38.5 -33 41 38           ~ 6 0
41 4FGL J1744.9-3322 gam 17 44 56.1 -33 22 20           ~ 7 0
42 4FGL J1745.6-3626 gam 17 45 39.3 -36 26 18           ~ 7 0
43 4FGL J1746.1-2541 gam 17 46 11.5 -25 41 17           ~ 6 0
44 2FGL J1747.2-3507 Bla 17 47 29.21 -35 03 29.7           ~ 20 0
45 4FGL J1747.7-2141 gam 17 47 45.6 -21 41 23           ~ 6 0
46 4FGL J1747.9-3224 gam 17 47 56.3 -32 24 45           ~ 5 0
47 4FGL J1748.2-1942 gam 17 48 17.1 -19 42 23           ~ 5 0
48 4FGL J1750.6-1906 gam 17 50 39.5 -19 06 36           ~ 6 0
49 4FGL J1750.9-3301 gam 17 50 55.2 -33 01 12           ~ 7 0
50 4FGL J1752.3-2914 gam 17 52 18.5 -29 14 57           ~ 5 0
51 4FGL J1752.3-3139 gam 17 52 20.3 -31 39 08           ~ 7 0
52 3FGL J1754.0-3321 Bz? 17 53 23.9 -33 25 01           ~ 13 0
53 2FGL J1754.1-2930 gam 17 53 56.59 -29 29 53.5           ~ 23 0
54 4FGL J1754.8-3200 gam 17 54 48.8 -32 00 03           ~ 7 0
55 3FGL J1757.8-3126 gam 17 57 24.9 -31 25 07           ~ 7 0
56 4FGL J1758.0-2953 gam 17 58 02.5 -29 53 21           ~ 5 0
57 4FGL J1758.3-1920 gam 17 58 23.1 -19 20 36           ~ 5 0
58 VVV J175837.75-411002.2 AG? 17 58 37.75 -41 10 02.2           ~ 1 0
59 VVV J175840.46-410757.8 AG? 17 58 40.46 -41 07 57.8           ~ 1 0
60 3FGL J1758.8-4108 gam 17 58 47.2 -41 09 10           ~ 11 0
61 VVV J175851.46-411016.0 AG? 17 58 51.46 -41 10 16.0           ~ 1 0
62 VVV J175854.48-410927.7 AG? 17 58 54.48 -41 09 27.7           ~ 1 0
63 2FGL J1759.2-3853 Bz? 17 59 25.82 -38 47 53.7           ~ 24 0
64 VVV J180027.63-291007.4 AG? 18 00 27.63 -29 10 07.4           ~ 1 0
65 4FGL J1800.5-2910 gam 18 00 30.1 -29 10 25           ~ 6 0
66 4FGL J1801.0-2802 gam 18 01 02.9 -28 02 21           ~ 5 0
67 4FGL J1802.1-2652 gam 18 02 10.5 -26 52 17           ~ 6 0
68 3FGL J1802.4-3043 gam 18 02 27.5 -30 41 57           ~ 12 0
69 4FGL J1805.1-3618 gam 18 05 06.4 -36 18 22           ~ 8 0
70 4FGL J1806.9-2824 gam 18 06 58.8 -28 24 57           ~ 5 0
71 VVV J180813.19-352208.2 AG? 18 08 13.19 -35 22 08.2           ~ 1 0
72 2FGL J1808.3-3356 gam 18 08 24.4 -33 58 54           ~ 22 0
73 WISE J180825.25-335615.1 MIR 18 08 25.251 -33 56 15.15           ~ 1 0
74 VVV J180826.32-352214.7 AG? 18 08 26.32 -35 22 14.7           ~ 1 0
75 3FGL J1808.4-3519 gam 18 08 28.5 -35 22 25           ~ 9 0
76 3FGL J1808.4-3703 gam 18 08 30.4 -37 01 50           ~ 12 0
77 IRAS 18052-3358 Mi* 18 08 35.9612595840 -33 57 52.322432148     19.758   13.320 ~ 5 0
78 3FGL J1809.2-2725 gam 18 09 13.8 -27 26 44           ~ 8 0
79 VVV J180923.48-272503.0 AG? 18 09 23.48 -27 25 03.0           ~ 1 0
80 4FGL J1811.0-2725 gam 18 11 03.4 -27 25 19           ~ 6 0
81 VVV J181105.59-272529.9 AG? 18 11 05.59 -27 25 29.9           ~ 1 0
82 4FGL J1812.8-3144 gam 18 12 52.7 -31 44 38           ~ 8 0
83 VVV J181252.80-314443.5 AG? 18 12 52.80 -31 44 43.5           ~ 1 0
84 VVV J181258.71-314346.7 AG? 18 12 58.71 -31 43 46.7           ~ 2 0
85 VVV J181300.69-314505.6 AG? 18 13 00.69 -31 45 05.6           ~ 1 0
86 VVV J181440.95-341915.4 AG? 18 14 40.95 -34 19 15.4           ~ 1 0
87 4FGL J1814.7-3420 gam 18 14 45.7 -34 20 28           ~ 6 0
88 VVV J181458.28-342052.1 AG? 18 14 58.28 -34 20 52.1           ~ 1 0
89 4FGL J1815.2-2715 Bz? 18 15 15.1 -27 15 27           ~ 10 0
90 3FGL J1816.2-2726 Bz? 18 16 25.5 -27 27 23           ~ 12 0
91 NVSS J181720-303257 Bla 18 17 20.40543360 -30 32 59.0884440           ~ 13 0
92 VVV J181751.39-333117.3 AG? 18 17 51.39 -33 31 17.3           ~ 1 0
93 4FGL J1817.9-3334 gam 18 17 55.2 -33 34 22           ~ 7 0
94 VVV J181803.69-333215.7 AG? 18 18 03.69 -33 32 15.7           ~ 1 0
95 VVV J181952.92-292447.2 AG? 18 19 52.92 -29 24 47.2           ~ 1 0
96 4FGL J1819.9-2926 gam 18 19 57.6 -29 26 21           ~ 6 0
97 VVV J182027.00-321931.1 AG? 18 20 27.00 -32 19 31.1           ~ 1 0
98 1FGL J1820.5-3216 gam 18 20 45.11 -32 16 08.2           ~ 20 0
99 VVV J182052.11-322058.3 AG? 18 20 52.11 -32 20 58.3           ~ 1 0
100 VVV J182807.31-325038.0 AG? 18 28 07.31 -32 50 38.0           ~ 1 0
101 VVV J182809.51-325239.3 AG? 18 28 09.51 -32 52 39.3           ~ 1 0
102 VVV J182809.69-324820.6 AG? 18 28 09.69 -32 48 20.6           ~ 1 0
103 4FGL J1828.2-3252 gam 18 28 13.5 -32 52 11           ~ 6 0
104 VVV J182826.63-325145.4 AG? 18 28 26.63 -32 51 45.4           ~ 1 0
105 VVV J182834.03-325437.9 AG? 18 28 34.03 -32 54 37.9           ~ 1 0
106 VVV J183051.88-313056.9 AG? 18 30 51.88 -31 30 56.9           ~ 1 0
107 2FGL J1830.9-3132 gam 18 31 02.26 -31 25 41.1           ~ 18 0
108 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
109 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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