2017MNRAS.467.4674L

Query : 2017MNRAS.467.4674L

2017MNRAS.467.4674L - Mon. Not. R. Astron. Soc., 467, 4674-4710 (2017/June-1)

A catalogue of optical to X-ray spectral energy distributions of z ~= 2 quasars observed with Swift - I. First results.

LAWTHER D., VESTERGAARD M., RAIMUNDO S. and GRUPE D.

Abstract (from CDS):

We present the Swift optical to X-ray spectral energy distributions (SEDs) of 44 quasars at redshifts z ≃ 2 observed by Swift, part of a larger program to establish and characterize the optical through X-ray SEDs of moderate-redshift quasars. Here, we outline our analysis approach and present preliminary analysis and results for the first third of the full quasar sample. Not all quasars in the sample are detected in X-rays; all of the X-ray-detected objects so far are radio loud. As expected for radio-loud objects, they are X-ray bright relative to radio-quiet quasars of comparable optical luminosities, with an average αox =1.39 ± 0.03 (where αox is the power-law slope connecting the monochromatic flux at 2500 Å and at 2 keV), and display hard X-ray spectra. We find integrated 3000 Å-25 keV accretion luminosities of between 0.7 x 1046 erg s–1 and 5.2 x 1047 erg s–1. Based on single-epoch spectroscopic virial black hole mass estimates, we find that these quasars are accreting at substantial Eddington fractions, 0.1 <= L/LEdd <= 1.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): catalogues - quasars: general - quasars: general

Simbad objects: 47

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Number of rows : 47
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 B2359+002 QSO 00 02 12.0166235736 +00 32 53.388915972   20.0 20.0     ~ 18 0
2 QSO B0002-008 QSO 00 05 00.4263073920 -00 33 48.323226024   19.14 18.88     ~ 42 0
3 LBQS 0015+0239 QSO 00 18 11.3891130384 +02 56 40.101656244     18.7     ~ 28 1
4 LBQS 0020+0217 QSO 00 23 24.8775423312 +02 33 58.559931540     18.6     ~ 19 0
5 4C -02.04B QSO 00 41 26.0088824640 -01 43 15.682809108   16 15.0     ~ 98 2
6 QSO B0040-017 QSO 00 42 55.2686476752 -01 25 37.862263416   18 18     ~ 21 0
7 4C 01.02 Bla 01 08 38.77110544 +01 35 00.3171844   18.54 18.39 19.05   ~ 589 1
8 QSO B0115-0108 QSO 01 18 27.9892034376 -00 52 39.850060944   18.54 18.32     ~ 51 0
9 4C 25.05 Bla 01 26 42.79263357 +25 59 01.3001559     17.50 17.86   ~ 177 1
10 [VV2006] J014725.5-101439 QSO 01 47 25.5113330400 -10 14 39.005518128   17.82 17.50     ~ 23 0
11 4C -03.07 Bla 02 28 53.2110624600 -03 37 37.123953384   17.03 16.96 16.8   ~ 162 1
12 QSO B0238+100 QSO 02 41 22.2845936928 +10 18 47.013289164     18     ~ 37 1
13 US 3152 QSO 02 46 57.6023422800 +01 59 11.552486280   19.6 18.58     ~ 15 0
14 QSO B0249-184 QSO 02 51 48.0484881504 -18 14 28.737306096     18.6     ~ 30 0
15 PB 6929 QSO 02 55 15.2058379392 +01 48 28.684266840   18.23 18.07     ~ 39 0
16 4C 09.17 QSO 04 48 21.73843453 +09 50 51.4600564   20.2 19.55     ~ 86 1
17 4C -02.19 Bla 05 01 12.80988538 -01 59 14.2564557   19.1 18.06 19.04   ~ 624 1
18 4C 03.10 QSO 05 07 36.5037518903 +03 07 52.043712642     19.4     ~ 56 1
19 7C 0808+2854 QSO 08 11 36.8956979880 +28 45 03.617834976   18.75 18.49     ~ 64 1
20 [VV2006] J082328.6+061146 QSO 08 23 28.6182328320 +06 11 46.117419324   18.45 18.23     ~ 35 1
21 [VV2006] J094853.6+085514 BLL 09 48 53.6043539664 +08 55 14.410234056   17.84 17.47     ~ 37 0
22 QSO J1049-0110 QSO 10 49 15.4370453448 -01 10 38.189586468   18.34 18.13     ~ 42 0
23 2MASS J11060748-1731134 QSO 11 06 07.4741993496 -17 31 13.582491492           ~ 12 0
24 [VV2006] J111159.7+023719 QSO 11 11 59.6984343480 +02 37 19.656575184   18.02 17.85     ~ 29 0
25 UM 427 Bla 11 25 42.2899807440 +00 01 01.399121364   18.38 18.10 17.51   ~ 58 1
26 [VV2006] J114449.4+032752 QSO 11 44 49.3311132144 +03 27 51.722388180   18.03 17.70     ~ 23 0
27 [HCP84] 27 QSO 12 29 41.4591901382 +11 49 19.152632069           ~ 11 1
28 QSO B1311-270 QSO 13 13 47.3611661832 -27 16 49.201190364   17.80 17.43     ~ 64 1
29 LBQS 1315+0127 QSO 13 18 10.7425680000 +01 11 40.903477260   18.25 18.08     ~ 33 0
30 QSO B1402-012 BLL 14 04 45.89545125 -01 30 21.9471571   18.70 18.45 17.9   ~ 176 1
31 NGC 5506 Bla 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1173 1
32 NGC 5548 Sy1 14 17 59.5400291832 +25 08 12.603122268   14.35 13.73     ~ 2895 0
33 [VV2006] J142923.9+024023 QSO 14 29 23.9184944928 +02 40 23.189292480   17.77 17.39     ~ 25 0
34 QSO B1445+101 Bla 14 45 16.46525080 +09 58 36.0727447   18.58 17.78     ~ 408 2
35 [VV2006] J145717.8+024747 QSO 14 57 17.8622853648 +02 47 47.433704352   17.34 16.96     ~ 31 0
36 4C 04.53 QSO 15 44 59.4272243880 +04 07 46.357850496   18.0 20.0     ~ 78 1
37 QSO B1614+051 Bla 16 16 37.55681923 +04 59 32.7365717   19.60 19.17 19.49   ~ 195 2
38 4C 12.59 QSO 16 31 45.1708807968 +11 56 03.203387592   18.38 18.40     ~ 122 1
39 6C 165641+474241 Bla 16 58 02.77959206 +47 37 49.2308569   17.93 17.70 17.02   ~ 123 1
40 7C 172601.50+342502.00 QSO 17 27 49.9245000696 +34 22 39.304917660   19.27 19.01     ~ 43 1
41 QSO J2215-2944 BLL 22 15 16.0346800104 -29 44 23.328587400   17.58 17.44 16.9   ~ 81 1
42 QSO J2225+2118 Bla 22 25 38.0470440264 +21 18 06.414418332     18.19 17.65   ~ 180 1
43 4C 24.61 QSO 22 54 09.34189937 +24 45 23.4229729     17.8     ~ 149 1
44 QSO B2334+019 QSO 23 36 55.9697852664 +02 12 13.369224996     18.5     ~ 13 0
45 QSO B2341+010 QSO 23 44 23.2906793832 +01 20 04.186459932   18 18.6     ~ 19 0
46 QSO B2345+003 QSO 23 48 30.4169166984 +00 39 18.541251252   18.07 17.88     ~ 46 0
47 LBQS 2350-0045A QSO 23 52 53.5177514496 -00 28 50.433172356   18.73 18.41     ~ 86 0

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