2024RAA....24j5006S

Query : 2024RAA....24j5006S

2024RAA....24j5006S - Research in Astron. and astroph., 24, part no 10, 5006 (2024/October-0)

Fermi Blazars in the Zwicky Transient Facility Survey: Properties of Large Optical Variations.

SUN S.-S., WANG Z.-X. and JI S.-H.

Abstract (from CDS):

We analyze the optical light curve data, obtained with the Zwicky Transient Facility (ZTF) survey, for 47 γ-ray blazars monitored by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope (Fermi). These 47 sources are selected because they are among the Fermi blazars with the largest optical variations in the ZTF data. Two color-magnitude variation patterns are seen in them, with one being redder-to-stable-when-brighter (RSWB; in 31 sources) and the other being stable when brighter (in 16 sources). The patterns fit with the results recently reported in several similar studies with different data. Moreover, we find that the colors in the stable state of the sources share similar values, for which (after being corrected for the Galactic extinction) most sources are in a range of 0.4-0.55. This feature could be intrinsic and may be applied in, for example, study of the intragalactic medium. We also determine the turning points for the sources showing the RSWB pattern, after which the color changes saturate and become stable. We find a correlation between optical fluxes and γ-ray fluxes at the turning points. The physical implications of the correlation remain to be investigated, probably better with a sample of high-quality γ-ray flux measurements.

Abstract Copyright: © 2024 National Astronomical Observatories, CAS and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Journal keyword(s): (galaxies:) BL Lacertae objects: general - (galaxies:) quasars: general - gamma-rays: galaxies

Simbad objects: 58

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Number of rows : 58
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 QSO B0019+058 BLL 00 22 32.44121084 +06 08 04.2689202   19.2   19.07   ~ 152 1
2 ICRF J002829.8+200026 Bla 00 28 29.81848131 +20 00 26.7440093   19.5 19.5     ~ 76 1
3 PKS J0038-2459 Bla 00 38 14.73550152 -24 59 02.2352926   18.90   17.14   ~ 145 1
4 QSO B0047-051 Bla 00 50 21.5351538408 -04 52 20.592096492   18.5   18.59   ~ 84 1
5 4FGL J0107.4+0334 Bz? 01 07 24.2 +03 34 09           ~ 10 0
6 SDSS J010728.57+033348.6 QSO 01 07 28.5711865968 +03 33 48.606548256           ~ 13 1
7 4C 31.03 Bla 01 12 50.3328920232 +32 08 17.435303556     18.0 18.1   ~ 140 1
8 6C 013354+473615 Bla 01 36 58.59480326 +47 51 29.1000720     19.50 19.25 15.21 ~ 537 1
9 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
10 QSO J0401+2110 Bla 04 01 45.16607822 +21 10 28.5869751       20.32   ~ 75 1
11 PMN J0401-2034 Rad 04 01 52.70 -20 35 09.9           ~ 8 1
12 4FGL J0401.9-2034 Bz? 04 01 56.8 -20 34 49           ~ 14 0
13 [VV2006] J040729.1+074208 BLL 04 07 29.08668900 +07 42 07.4714246     17.59 17.28   ~ 100 1
14 PKS J0417-0250 rG 04 17 58.2596560512 -02 50 19.329608364           ~ 15 1
15 3FGL J0418.0-0251 Bla 04 18 07.7 -02 52 46           ~ 21 0
16 QSO B0446+113 BLL 04 49 07.67110194 +11 21 28.5963618     20.00 18.58   ~ 305 1
17 ICRF J063459.0-233511 QSO 06 34 59.00100130 -23 35 11.9573454   22.06   21.56   ~ 62 1
18 ICRF J071355.6+193500 Bla 07 13 55.67917496 +19 35 00.4089341       18   ~ 106 3
19 6C 073840+545153 BLL 07 42 39.79069953 +54 44 24.6671050     16.90     ~ 138 1
20 NVSS J080941+534124 Bla 08 09 41.7314407307 +53 41 25.085077319       19.62   ~ 84 1
21 6C 103031+610629 Bla 10 33 51.4290959304 +60 51 07.334442756   19.31 18.86 20.24   ~ 195 2
22 87GB 103758.5+063247 BLL 10 40 31.6262333280 +06 17 21.764932476   20.02 16.8 19.73   ~ 81 1
23 ICRF J104946.3+142938 BLL 10 49 46.32757946 +14 29 38.5737464           ~ 24 1
24 3FGL J1049.8+1425 Bla 10 49 52.2 +14 29 01           ~ 25 0
25 Ton 599 Bla 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 989 1
26 PMN J1251-0201 Rad 12 51 18.3824487720 -02 02 07.470601188           ~ 4 1
27 9Y-MST J1251-0202 Bla 12 51 20.6 -02 01 38           ~ 22 0
28 2MASS J13030321+2433558 BLL 13 03 03.2171262048 +24 33 55.735965792   20.09 19.54 18.2   ~ 84 1
29 5C 12.291 Bla 13 08 23.70913457 +35 46 37.1640036   20.95 20.22 19.43   ~ 110 1
30 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
31 [VV2006] J131250.9-042451 Bla 13 12 50.90123596 -04 24 49.8921276     18.7 19.29   ~ 86 1
32 [VV2006] J132111.2+221613 Bla 13 21 11.20255812 +22 16 12.1083023   19.59 19.23 19.37   ~ 133 1
33 ICRF J133239.2-125615 Bla 13 32 39.25140566 -12 56 15.3435472       18.7   ~ 90 1
34 ICRF J133353.7+505735 Bla 13 33 53.7823 +50 57 35.914   20.09 19.71 19.6   ~ 91 1
35 QSO B1334-127 Bla 13 37 39.78278132 -12 57 24.6933925   18.5 19.00 16.22   ~ 540 1
36 7C 134328.69+450758.00 Bla 13 45 33.17247907 +44 52 59.5725560       19.6   ~ 138 1
37 7C 134837.00+304924.00 Bla 13 50 52.73622485 +30 34 53.5906894   18.73 18.34 18.80   ~ 152 1
38 ICRF J145031.1+091027 Bla 14 50 31.16892968 +09 10 27.9547226       20.17   ~ 70 1
39 ICRF J145318.5+350539 Bla 14 53 18.54525010 +35 05 39.3633326   20.52 19.88 19.50   ~ 45 1
40 4FGL J1453.5+3505 AG? 14 53 34.1 +35 05 18           ~ 18 0
41 ICRF J153939.1+274438 Bla 15 39 39.13713864 +27 44 38.2113620   19.13 18.76 17.29   ~ 118 1
42 [VV2006] J163915.8+412833 QSO 16 39 15.8122 +41 28 33.702   19.36 19.16 19.04 18.90 ~ 43 1
43 3FGL J1639.8+4125 Bla 16 39 17.7 +41 29 47           ~ 25 0
44 6C 170021+683437 Bla 17 00 09.29285259 +68 30 06.9591278     17.00 18.47   ~ 143 1
45 87GB 184000.4+611120 Rad 18 40 34.0 +61 14 18           ~ 1 0
46 3FGL J1840.5+6116 Bz? 18 41 00.7 +61 15 08           ~ 19 0
47 QSO B1851+488 Bla 18 52 28.54781487 +48 55 47.4814782   19.0   18.77   ~ 121 1
48 ICRF J195441.1-112322 BLL 19 54 41.15572923 -11 23 22.6421728       19.02   ~ 108 1
49 6C 200700+660005 Bla 20 07 28.77109025 +66 07 22.5355796     18.20 20.30   ~ 66 1
50 [VV96] J202510.8+031645 Bla 20 25 09.63216676 +03 16 44.5045130     19.4 20.09   ~ 43 1
51 4FGL J2025.2+0317 AG? 20 25 14.0 +03 17 21           ~ 14 0
52 ICRF J224412.7+405713 BLL 22 44 12.7311667056 +40 57 13.619816316       19.7   ~ 110 1
53 4FGL J2301.0-0158 AG? 23 01 03.0 -01 58 33           ~ 24 0
54 [VV2006] J230108.0-015804 Bla 23 01 07.97847262 -01 58 04.5857764   19.23 19.10 20.04   ~ 66 1
55 4FGL J2322.6-0735 Bz? 23 22 37.8 -07 35 27           ~ 13 0
56 ICRF J232252.0-073705 QSO 23 22 52.09118138 -07 37 05.6183989           ~ 13 1
57 SDSS J232625.63+011208.6 Bz? 23 26 18.0 +01 13 18           ~ 21 0
58 QSO B2345-167 Bla 23 48 02.60851466 -16 31 12.0222546   18.00 18.41 16.86   ~ 432 1

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