2014AJ....148...66M

Query : 2014AJ....148...66M

2014AJ....148...66M - Astron. J., 148, 66 (2014/October-0)

Optical spectroscopic observations of blazars and γ-ray blazar candidates in the Sloan Digital Sky Survey data release nine.

MASSARO F., MASETTI N., D'ABRUSCO R., PAGGI A. and FUNK S.

Abstract (from CDS):

We present an analysis of the optical spectra available in the Sloan Digital Sky Survey data release nine (SDSS DR9) for the blazars listed in the ROMA-BZCAT and for the γ-ray blazar candidates selected according to their IR colors. First, we adopt a statistical approach based on Monte Carlo simulations to find the optical counterparts of the blazars listed in the ROMA-BZCAT catalog. Then, we crossmatched the SDSS spectroscopic catalog with our selected samples of blazars and γ-ray blazar candidates, searching for those with optical spectra available to classify our blazar-like sources and, whenever possible, to confirm their redshifts. Our main objectives are to determine the classification of uncertain blazars listed in the ROMA-BZCAT and to discover new gamma-ray blazars. For the ROMA-BZCAT sources, we investigated a sample of 84 blazars, confirming the classification for 20 of them and obtaining 18 new redshift estimates. For the γ-ray blazars, indicated as potential counterparts of unassociated Fermi sources or with uncertain nature, we established the blazar-like nature of 8 out of the 27 sources analyzed and confirmed 14 classifications.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - quasars: general - methods: statistical - radiation mechanisms: non-thermal - surveys

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 SDSS J000121.46-001140.2 BLL 00 01 21.4678641576 -00 11 40.314481656     19.97 19.1   ~ 19 1
2 2MASX J00260834-0005471 BLL 00 26 08.3791080792 -00 05 47.009009076   20.11 19.17 17.4   ~ 10 0
3 2MASS J01005819-0055478 BLL 01 00 58.1885127528 -00 55 47.803460808   20.21 19.47 19.5   ~ 18 0
4 87GB 010628.1+175958 BLL 01 09 08.1769512984 +18 16 07.501949256     16.6 16.3   ~ 76 2
5 FBQS J0127-0821 BLL 01 27 16.3110986760 -08 21 28.895695128   20.15 19.40 18.50   ~ 36 1
6 1RXS J014126.8-092857 BLL 01 41 25.83216015 -09 28 43.6742470   16.94 16.55 17.21   ~ 302 1
7 PMN J0158+0101 BLL 01 58 52.7700514128 +01 01 32.909527020           ~ 44 1
8 2XMM J025315.6-012405 BLL 02 53 15.6056961960 -01 24 05.429068380   18.8   18.5   ~ 16 1
9 [VV96] J031049.8+381453 BLL 03 10 49.87992240 +38 14 53.8378761     19.70 19.21   ~ 127 1
10 1RXS J032342.6-011131 BLL 03 23 43.6189299792 -01 11 46.206256992 17.67 17.48 16.96 17.4   ~ 27 1
11 1FGL J0323.7-0106 mul 03 23 45.3 -01 11 25           ~ 57 0
12 1RXS J032354.4-010821 BLL 03 23 56.6340475446 -01 08 29.672594965           ~ 34 1
13 NVSS J044023+260458 rG 04 40 23.88 +26 05 01.2           ~ 8 0
14 RX J0731.8+2804 BLL 07 31 52.7289827136 +28 04 32.936159892       16.2   ~ 44 1
15 7C 075105.29+483138.00 BLL 07 54 45.6705975216 +48 23 50.749279404   17.97 17.55 16.4   ~ 88 2
16 RX J0755.3+3726 BLL 07 55 23.1141620856 +37 26 18.824469468   21.45 20.82 19.7   ~ 12 0
17 [MML2015] 5BZB J0801+1336 BLL 08 01 15.0197753808 +13 36 42.242140620       18.8   ~ 7 0
18 1REX J081421+0857.0 BLL 08 14 21.671 +08 57 06.33     19.90 17.3   ~ 11 1
19 7C 081451.89+423206.00 BLL 08 18 15.99961476 +42 22 45.4148987   18.88 18.18 17.81   ~ 429 1
20 6C 081935+405144 Bla 08 22 57.55595483 +40 41 49.7667568   19.48 19.20     ~ 101 1
21 4C 22.21 BLL 08 23 24.7592164368 +22 23 03.287299236   20.22 19.57 19.7   ~ 186 1
22 1RXS J082904.5+175415 BLL 08 29 04.8275335680 +17 54 15.865834356           ~ 63 1
23 7C 082754.29+242103.00 Bla 08 30 52.08619250 +24 10 59.8202919   17.62 17.26 16.30   ~ 563 1
24 2MASX J08310034+5400235 BLL 08 31 00.3661190406 +54 00 23.237646052       13.5   ~ 26 1
25 2MASS J08354322+0937177 BLL 08 35 43.2119638416 +09 37 17.979053988       18.1   ~ 41 1
26 NVSS J083903+401546 BLL 08 39 03.0835285944 +40 15 45.596941128       15.3   ~ 31 1
27 2MASS J08401304+3440269 BLL 08 40 13.0375057872 +34 40 26.913963468   20.23 19.67 19.4   ~ 13 1
28 2FGL J0844.9+6214 gam 08 44 55 +62 14.9           ~ 9 0
29 SDSS J085639.74+205743.3 BLL 08 56 39.7406794656 +20 57 43.398504468 18.90 18.67 18.51 19.5   ~ 58 1
30 2MASX J09053640+4705462 BLL 09 05 36.4463296848 +47 05 46.348420992       15.5   ~ 17 1
31 [YHW2016] 138.11346+42.59587 BLL 09 12 27.229 +42 35 45.12       17.5   ~ 9 0
32 7C 092054.7+282821 Bla 09 23 51.52339821 +28 15 25.0219334   19.70 19.48 19.00   ~ 112 1
33 87GB 092305.1+542503 BLL 09 26 38.8802071032 +54 11 26.589134364   20.21 19.60 19.4   ~ 19 1
34 1RXS J093310.2+000316 BLL 09 33 10.57 +00 03 23.5   23.45 21.59 20.7   ~ 9 0
35 9C J0940+2603 BLL 09 40 14.72278286 +26 03 29.9461593   20.32 19.62 19.21   ~ 53 1
36 7C 094111.09+561152.00 BLL 09 44 41.4718854432 +55 57 52.944009012   20.77 20.11 19.8   ~ 14 1
37 US 1015 BLL 09 50 11.8169003520 +45 53 20.052168648   19.64 19.00     ~ 59 1
38 2MASS J09512783+0102103 BLL 09 51 27.8210864760 +01 02 10.296540168   19.99 19.41 19.3   ~ 14 0
39 RX J1006.9+3454 BLL 10 06 56.4721611528 +34 54 45.192297024   19.48 19.03 18.2   ~ 59 0
40 2MASX J10071041+5023565 BLL 10 07 10.4503116744 +50 23 56.564981232       15.4   ~ 11 1
41 ATO J153.0556+06.5158 BLL 10 12 13.3484443872 +06 30 57.192683436   17.72 17.39 16.9   ~ 105 1
42 7C 1015+3557 Bla 10 18 10.98810472 +35 42 39.4409041   18.62 18.07 17.65   ~ 212 1
43 4C 40.25 Bla 10 23 11.56566843 +39 48 15.3853581   17.5 17.5 17.18   ~ 182 1
44 [VV2000] J102333.5+395312 QSO 10 23 33.5049708288 +39 53 12.687555732   18.68 18.43     ~ 39 1
45 RX J1031.3+5053 BLL 10 31 18.5251007784 +50 53 35.817278064   17.25 16.98 16.3   ~ 210 2
46 [MML2015] 5BZB J1032+0309 BLL 10 32 20.2838049720 +03 09 49.254397416   18.95 18.42 18.2   ~ 11 0
47 RX J1057.3+2303 BLL 10 57 23.0982216336 +23 03 18.740261592       18.6   ~ 27 0
48 RX J1058.5+2817 BLL 10 58 29.8948700640 +28 17 46.215179520   19.23 18.62 17.6   ~ 48 1
49 1RXS J110021.9+421059 BLL 11 00 20.9953307016 +42 10 53.252371704           ~ 14 0
50 RX J1100.3+4019 BLL 11 00 21.0622217352 +40 19 28.049163780   17.67 17.27 17.8   ~ 67 0
51 [MML2015] 5BZB J1107+5010 BLL 11 07 04.7763712632 +50 10 37.928317656   20.54 19.79 19.5   ~ 14 1
52 SDSS J111056.83+353907.2 BLL 11 10 56.8320912816 +35 39 07.301465244   19.65 19.12 18.3   ~ 23 0
53 RX J1111.5+3452 BLL 11 11 30.8991225240 +34 52 03.412837704   19.96 19.52 19.3   ~ 25 0
54 2MASS J11174041+2548468 BLL 11 17 40.3948878936 +25 48 46.641183840   17.26 16.77 17   ~ 16 0
55 RX J1120.7+4212 BLL 11 20 48.0624161160 +42 12 12.465387612   17.55 17.11 16.9   ~ 130 2
56 SDSS J112903.24+375656.7 BLL 11 29 03.2509775616 +37 56 56.742130896           ~ 35 0
57 ICRF J113245.6+003427 BLL 11 32 45.6184743144 +00 34 27.830851248 18.98 18.54 18.08 17.5   ~ 131 1
58 QSO B1133+16 BLL 11 36 17.5377147576 +16 01 52.252739544     20.04 19.5   ~ 39 0
59 2MASS J11381218+4113531 BLL 11 38 12.1516765320 +41 13 52.810666176   20.53 20.03 19.1   ~ 22 0
60 2MASS J11521070+2837212 BLL 11 52 10.7055861216 +28 37 21.273917772   19.57 19.00 17.8   ~ 15 0
61 6C 115106+383936 BLL 11 53 42.9121435152 +38 23 05.910339588   19.44 18.96 18   ~ 23 1
62 ICRF J120922.7+411941 BLL 12 09 22.7879963712 +41 19 41.371293540   18.42 17.83 16.74   ~ 133 2
63 RX J1211.9+2242 BLL 12 11 58.6306591752 +22 42 32.946579432   19.13 18.66 18.7   ~ 51 0
64 4FGL J1219.7+0444 BLL 12 19 44.9787913752 +04 46 22.484154180   18.59 18.04 18.6   ~ 23 0
65 QSO B1217+023 BLL 12 20 11.8846520568 +02 03 42.223956876   16.15 15.97 15.6   ~ 338 2
66 4C 04.42 Bla 12 22 22.54962606 +04 13 15.7760715   17.88 17.98 17.06   ~ 354 1
67 4FGL J1224.1+2239 BLL 12 24 01.0361366328 +22 39 39.556803996       19   ~ 31 1
68 2MASX J12260416+2604278 BLL 12 26 04.1264268360 +26 04 27.860878452     18.37 17   ~ 14 0
69 7C 122915.40+290414.00 BLL 12 31 43.5724342752 +28 47 49.770870684   17.90 17.38     ~ 99 2
70 RX J1237.0+3020 BLL 12 37 05.6098555320 +30 20 04.993401156   20.35 19.93 19.2   ~ 24 0
71 1RXS J123826.1+443125 BLL 12 38 26.0214197304 +44 31 37.162153092   21.21 20.33 19   ~ 11 0
72 RX J1239.3+4132 BLL 12 39 22.7388903768 +41 32 51.503851572   20.14 19.79 19.7   ~ 15 0
73 Ton 116 BLL 12 43 12.7362011736 +36 27 43.997592204   17.41 17.11 16.4   ~ 112 1
74 RX J1247.0+4423 BLL 12 47 00.7255670496 +44 23 18.804333912   19.35 19.02     ~ 49 0
75 RX J1253.0+3826 BLL 12 53 00.9494091024 +38 26 25.794336156   19.80 19.24 19   ~ 24 0
76 [MML2015] 5BZB J1255+3848 BLL 12 55 55.4017492224 +38 48 11.321221896       18.9   ~ 8 0
77 5C 12.170 QSO 13 01 29.1544244472 +33 37 00.382119168   20.54 20.16     ~ 67 1
78 LBQS 1308+0051 BLL 13 11 06.4762326096 +00 35 10.045283820   18.53 18.01     ~ 60 0
79 RX J1311.9+0853 BLL 13 11 55.7643949872 +08 53 41.074794564   20.41 19.69 18.9   ~ 19 0
80 7C 1312+2404 BLL 13 14 43.8062104200 +23 48 26.782554060 17.15 16.83 16.57 15.4   ~ 99 2
81 QSO B1324+224 Bla 13 27 00.86131319 +22 10 50.1628385     18.90 18.80   ~ 194 1
82 RX J1328.5+1145 BLL 13 28 33.5701523640 +11 45 20.523468276   19.71 19.20 19.4   ~ 22 0
83 7C 133039.60+473739.00 Bla 13 32 45.24642464 +47 22 22.6677558   18.34 17.94 18.57   ~ 147 1
84 7C 133927.00+373153.00 BLL 13 41 38.6633624640 +37 16 44.861633508       15.4   ~ 17 1
85 RX J1351.3+1114 BLL 13 51 20.8456353168 +11 14 52.980699588 17.97 17.82 17.87     ~ 72 1
86 87GB 135932.3+362554 BLL 14 01 38.7332404104 +36 11 21.902517312   19.91 19.41 19.2   ~ 18 1
87 2MASX J14043683+2701409 BLL 14 04 36.821 +27 01 40.96     18.40 14.7   ~ 17 0
88 RX J1404.8+0402 BLL 14 04 50.9113762032 +04 02 02.209070292   16.93 16.61     ~ 142 1
89 RX J1410.4+2821 BLL 14 10 29.5571107272 +28 20 55.651710012   17.97 17.52 18.5   ~ 55 0
90 87GB 142101.3+375014 BLL 14 23 04.6147460592 +37 37 30.571082328   19.08 18.66 18.3   ~ 53 1
91 2MASS J14233068+1412479 BLL 14 23 30.6795602496 +14 12 47.862715464       19.3   ~ 7 1
92 1WGA J1426.7+2415 BLL 14 26 45.5255143200 +24 15 23.087863188   19.51 19.19 20   ~ 15 0
93 NVSS J143626+412933 BLL 14 36 27.1621689312 +41 29 32.381007828   22.05 21.16 19.7   ~ 13 1
94 RX J1436.9+5639 BLL 14 36 57.7190885904 +56 39 24.859811736   18.92 18.51 17.6   ~ 83 0
95 7C 143529.00+473023.00 BLL 14 37 16.1464874760 +47 17 26.346171228   20.31 19.95 19.8   ~ 10 1
96 [VV2006] J144207.2+434836 BLL 14 42 07.1529491640 +43 48 36.713361024   18.94 18.58     ~ 46 0
97 SDSS J144334.40+251558.2 BLL 14 43 34.4086258272 +25 15 58.200477552       19.6   ~ 20 0
98 RX J1456.0+5048 BLL 14 56 03.6389208720 +50 48 25.975448676   19.84 19.51 18.1   ~ 41 0
99 PMN J1506+0814 BLL 15 06 44.4736388448 +08 14 00.721409964       17   ~ 53 2
100 9C J1521+4336 Bla 15 21 49.61387806 +43 36 39.2681695   19.30 18.95 18.09   ~ 129 1
101 [MML2015] 5BZB J1553+0601 BLL 15 53 31.0725538440 +06 01 43.848031008       19.6   ~ 6 0
102 ICRF J160341.9+110548 BLL 16 03 41.93125418 +11 05 48.6791330   18.41 17.82 16.66   ~ 77 2
103 2FGL J1612.0+1403 AGN 16 12 07.5 +14 07 00           ~ 23 0
104 NVSS J161505+470359 rG 16 15 04.872 +47 03 58.33           ~ 41 1
105 6C 161416+471901 BLL 16 15 41.2171778784 +47 11 11.765132412   18.77 17.98     ~ 43 2
106 RX J1623.5+2841 BLL 16 23 32.2598511600 +28 41 28.766530464   19.68 19.24 19.8   ~ 12 0
107 1FGL J1627.6+3218 gam 16 28 00.40656 +32 24 14.0328           ~ 35 0
108 SDSS J165248.44+363212.5 BLL 16 52 48.4450907424 +36 32 12.532985052   20.14 19.45 18.9   ~ 16 1
109 ICRF J170124.6+395437 BLL 17 01 24.63481525 +39 54 37.0915503   17.50 17.07 16.26   ~ 61 1
110 SDSS J211817.39+001316.8 Bla 21 18 17.3982630936 +00 13 16.811482440   18.7 19.29 18.6   ~ 109 1
111 RX J2129.6+0035 BLL 21 29 40.6778536704 +00 35 27.492208476   20.00   18.5   ~ 13 0
112 SDSS J222329.57+010226.6 BLL 22 23 29.5712726232 +01 02 26.654394588           ~ 46 0
113 2MASS J22275812+0037055 BLL 22 27 58.1313623424 +00 37 05.426018868   18.00 17.46 18.5   ~ 35 2
114 2MASX J23195280-0116262 BLL 23 19 52.8331323456 -01 16 26.825156580   20.05 18.96 17.58   ~ 14 0

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