2014ApJ...794...75S


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.30CET21:10:31

2014ApJ...794...75S - Astrophys. J., 794, 75 (2014/October-2)

HST-COS observations of AGNs. II. Extended survey of ultraviolet composite spectra from 159 active galactic nuclei.

STEVANS M.L., SHULL J.M., DANFORTH C.W. and TILTON E.M.

Abstract (from CDS):

The ionizing fluxes from quasars and other active galactic nuclei (AGNs) are critical for interpreting their emission-line spectra and for photoionizing and heating the intergalactic medium. Using far-ultraviolet (FUV) spectra from the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST), we directly measure the rest-frame ionizing continua and emission lines for 159 AGNs at redshifts 0.001 < zAGN< 1.476 and construct a composite spectrum from 475 to 1875 Å. We identify the underlying AGN continuum and strong extreme ultraviolet (EUV) emission lines from ions of oxygen, neon, and nitrogen after masking out absorption lines from the H I Lyα forest, 7 Lyman-limit systems (NHI ≥ 1017.2/cm2) and 214 partial Lyman-limit systems (14.5 < logNHI < 17.2). The 159 AGNs exhibit a wide range of FUV/EUV spectral shapes, Fv ∝ ναν^, typically with -2 ≤ αν ≤ 0 and no discernible continuum edges at 912 Å (H I) or 504 Å (He I). The composite rest-frame continuum shows a gradual break at λbr~ 1000 Å, with mean spectral index αν= -0.83±0.09 in the FUV (1200-2000 Å) steepening to αν= -1.41±0.15 in the EUV (500-1000 Å). We discuss the implications of the UV flux turnovers and lack of continuum edges for the structure of accretion disks, AGN mass inflow rates, and luminosities relative to Eddington values.

Abstract Copyright:

Journal keyword(s): galaxies: active - line: profiles - quasars: emission lines - ultraviolet: galaxies

VizieR on-line data: <Available at CDS (J/ApJ/794/75): table1.dat table2.dat>

Simbad objects: 162

goto Full paper

goto View the reference in ADS

Number of rows : 162

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 2E 12 Sy1 00 05 59.2379634379 +16 09 49.023089304   16.51 16.40     ~ 268 1
2 Mrk 335 Sy1 00 06 19.5371542746 +20 12 10.617456059   14.19 13.85     ~ 1107 0
3 2MASX J00122399-1022269 Sy1 00 12 24.0233964115 -10 22 26.552087384   17.59 17.25     ~ 47 0
4 2MASS J00362300+4316402 Sy1 00 36 23.0045982246 +43 16 40.144133040   17.2       ~ 15 0
5 PB 8488 QSO 00 42 22.2910586608 -10 37 43.823652636   16.83 16.61     ~ 37 0
6 2MASX J00481899+3941118 Sy1 00 48 18.9833315944 +39 41 11.720719092   16.2       ~ 47 0
7 2MASX J01013113+4229356 Sy1 01 01 31.1690801863 +42 29 35.586681108   16.7       ~ 17 0
8 LBQS 0107-0235 QSO 01 10 13.1605010207 -02 19 52.838365692   18.39 17.80 17.61   ~ 75 1
9 QSO J0110-0218 QSO 01 10 16.2699632294 -02 18 50.763174832   17.4 17.3     ~ 55 1
10 2E 357 Sy1 01 19 35.6919706175 -28 21 31.421837195   18.13 16.3 16.58   ~ 48 0
11 Ton S 210 QSO 01 21 51.5135355520 -28 20 57.802649318   15.38 15.19     ~ 83 0
12 QSO B0120-28 QSO 01 22 36.7682338442 -28 43 21.540163420   16.5 15.71     ~ 23 0
13 [VV2000] J015513.2-450612 QSO 01 55 13.2178793125 -45 06 11.577605988   15.1       ~ 36 0
14 6dFGS gJ015530.0-085704 Sy1 01 55 30.0258117157 -08 57 04.129972505   17.26 17.02 16.89   ~ 52 0
15 ICRF J020157.1-113233 Sy1 02 01 57.1798202842 -11 32 33.436998341   16.54 16.40 16.073   ~ 195 1
16 ICRF J020213.6-762003 Sy1 02 02 13.6940093296 -76 20 03.062346923   16.95 16.90     ~ 94 1
17 [VV2006] J020930.8-043827 QSO 02 09 30.7663695306 -04 38 26.145159788   17.5       ~ 45 0
18 6dFGS gJ021218.3-073720 Sy1 02 12 18.3262838627 -07 37 19.807933718   17.97 17.73 17.38   ~ 35 0
19 QSO J0226+0015 QSO 02 26 14.4683552796 +00 15 29.790703005   17.28 17.10     ~ 28 0
20 HE 0226-4110 Sy1 02 28 15.2391451958 -40 57 14.763446404   17.68 15.2 16.22   ~ 119 1
21 Mrk 1044 Sy1 02 30 05.5224714146 -08 59 53.208069457   14.74 14.29 13.981 13.585 ~ 223 0
22 4C -04.06 QSO 02 35 07.3417120791 -04 02 05.319157399   16.61 16.46 16.2   ~ 188 1
23 QSO B0238-1904 QSO 02 40 32.5842021129 -18 51 51.373815629     15.00     ~ 47 0
24 QSO J0242-0759 QSO 02 42 50.8575251399 -07 59 14.226037813   17.36 17.19     ~ 34 1
25 2MASX J02430962-7216476 Sy1 02 43 09.6128590493 -72 16 48.432281446 15.43 16.34 15.86 16.14   ~ 20 0
26 LB 2845 QSO 02 59 37.4643867588 +00 37 36.377346990   16.79 16.72     ~ 68 0
27 ESO 31-8 Sy1 03 07 35.3443011815 -72 50 02.595498156   15.11 14.98 14.58   ~ 45 0
28 6dFGS gJ031027.9-004951 Sy1 03 10 27.8269735962 -00 49 50.803371896   16.59 16.33 15.3   ~ 50 0
29 QSO J0401-0540 QSO 04 01 48.9807303403 -05 40 56.560549957   16.7 17.01 16.6   ~ 34 0
30 PKS 0405-123 Sy1 04 07 48.4309594137 -12 11 36.660481492   15.09 14.86 14.7   ~ 472 1
31 LB 1727 Sy1 04 26 00.7188445954 -57 12 01.772037544 13.68 14.58 14.37 14.8   ~ 235 0
32 [VV2000] J043650.8-525849 QSO 04 36 50.8453545254 -52 58 48.019841035     16.40     ~ 21 0
33 2MASX J04382919-6147587 Sy1 04 38 29.1942159073 -61 47 58.978420291   17.82 16.56 16.63   ~ 23 0
34 [VV98] J043938.7-531131 Sy1 04 39 38.7158844487 -53 11 31.246585806     16.2     ~ 37 0
35 [VV2000] J044011.9-524818 QSO 04 40 12.0483632663 -52 48 17.513621270     16.10     ~ 25 0
36 6dFGS gJ050304.0-663346 Sy1 05 03 03.968 -66 33 45.60   13.9   14.5   ~ 34 0
37 2MASS J05522451-6402108 Sy1 05 52 24.5027349529 -64 02 10.759884103     15.04     ~ 36 1
38 QSO B0558-5026 BLL 05 59 47.3917733375 -50 26 52.026945176   15.18 14.97     ~ 245 1
39 [VV98] J062309.1-643624 BLL 06 23 07.6967637429 -64 36 20.719136879   17.06 14.80 13.59   ~ 72 0
40 QSO J0635-7516 QSO 06 35 46.5080299 -75 16 16.815501   15.96 15.75 15.82   ~ 513 1
41 QSO B0748+295 QSO 07 51 12.3037392178 +29 19 38.280101321   16.28 16.18     ~ 51 0
42 2MASSI J0803592+433258 Sy1 08 03 59.2330929588 +43 32 58.355694676   17.78 17.72     ~ 32 0
43 [VV2006] J080908.1+461925 QSO 08 09 08.1368585497 +46 19 25.571615204   16.83 16.72     ~ 37 0
44 2MAXI J0808+757 Sy1 08 10 58.6637281539 +76 02 42.449416413   15.03 14.71     ~ 417 0
45 QSO J0820+2334 QSO 08 20 24.2211128975 +23 34 50.451518259   17.87 17.74     ~ 25 0
46 [VV2000] J082633.5+074248 QSO 08 26 33.5092361257 +07 42 48.413118150   17.31 16.99     ~ 31 0
47 QSO B0832+2510 QSO 08 35 35.8060255677 +24 59 40.185975439   16.30 16.00     ~ 54 0
48 [VV2006] J084349.5+411741 QSO 08 43 49.4976449374 +41 17 41.598281988   17.66 17.41     ~ 34 1
49 MCG+13-07-002 Sy1 08 44 45.3000235915 +76 53 09.466820353     15.7     ~ 172 0
50 QSO J0910+1014 QSO 09 10 29.7513564363 +10 14 13.589584020   18.17 18.08     ~ 37 0
51 2MASS J09123540+2957252 QSO 09 12 35.4244347418 +29 57 25.468187322   18.21 17.97     ~ 17 0
52 QSO J0914+2823 QSO 09 14 40.3893443424 +28 23 30.632427766   17.5 18.10 17.6   ~ 30 0
53 Mrk 106 Sy1 09 19 55.3490445149 +55 21 37.127610378   16.34 16.15     ~ 106 0
54 [VV2006] J092554.5+453544 QSO 09 25 54.4407292844 +45 35 44.426408169   17.97 17.75     ~ 34 0
55 QSO J0925+4004 QSO 09 25 54.7066238132 +40 04 14.172232118   17.98 17.92     ~ 54 0
56 SBSG 0924+606B Sy1 09 28 37.9890360592 +60 25 21.019960119   17.53 17.20     ~ 72 1
57 2MASS J09290979+4644240 Sy1 09 29 09.7920854587 +46 44 24.057254508   16.66 16.49     ~ 43 0
58 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 1007 1
59 4C 02.27 QSO 09 35 18.1943431119 +02 04 15.564759828   17.31 17.16     ~ 103 1
60 QSO J0943+0531 QSO 09 43 31.6146386142 +05 31 31.475492151   17.50 17.30     ~ 41 0
61 2MASX J09473320+1005093 Sy1 09 47 33.2202200272 +10 05 08.795765859   17.30 17.09     ~ 34 0
62 QSO B0946+3916 QSO 09 49 52.9154374536 +39 02 03.943926817   16.92 16.83     ~ 37 0
63 QSO B0946+487 QSO 09 50 00.7415496103 +48 31 29.337328558   17.56 17.47     ~ 56 0
64 PG 0953+414 Sy1 09 56 52.3930851607 +41 15 22.212153978 14.710 15.611 15.546 15.294 14.720 ~ 418 0
65 2MASS J09591566+0503552 Sy1 09 59 15.6575685817 +05 03 55.115180576   17.58 17.32     ~ 29 0
66 QSO J1001+5944 QSO 10 01 02.5505167414 +59 44 14.375860747   16.44 16.27     ~ 44 0
67 Ton 28 Sy1 10 04 02.6101006271 +28 55 35.330362166   16.17 15.7     ~ 147 0
68 [VV2000] J100535.2+013444 QSO 10 05 35.2475686493 +01 34 45.713245906   17.21 16.89     ~ 39 0
69 QSO J1009+0713 QSO 10 09 02.0698 +07 13 43.810   17.41 17.27     ~ 57 0
70 Ton 488 Sy1 10 10 00.6873168839 +30 03 21.577466544   17.35 17.00     ~ 58 0
71 QSO B1011-040 Sy1 10 14 20.6737918236 -04 18 40.372348306   15.49 15.5     ~ 115 0
72 QSO J1016+4706 QSO 10 16 22.6163771760 +47 06 43.345280692   17.40 17.29     ~ 33 0
73 LBQS 1019+0147 QSO 10 22 18.9949610570 +01 32 18.808374473   16.98 16.82     ~ 40 0
74 2MASX J10321624+5051201 Sy1 10 32 16.1338770090 +50 51 19.688053970   18.20 17.98     ~ 44 0
75 QSO B1048+342 Sy1 10 51 43.8919513785 +33 59 26.686941538   17.11 16.79     ~ 166 0
76 PG 1049-005 Sy1 10 51 51.4474876950 -00 51 17.709169017   15.98 15.78     ~ 154 0
77 QSO J1059+1441 QSO 10 59 45.2327142168 +14 41 42.898439593   17.37 17.18     ~ 24 0
78 2MASS J10595880+2517089 QSO 10 59 58.8144271693 +25 17 08.866015237   17.82 17.71     ~ 17 0
79 2MASS J11031293+4141549 Sy1 11 03 12.9339502917 +41 41 54.958518075   17.04 16.76     ~ 33 1
80 Ton 52 QSO 11 04 06.9369550115 +31 41 11.527831286   17.46 17.26     ~ 36 0
81 Ton 1329 QSO 11 05 39.8135767806 +34 25 34.684245994   16.02 15.89     ~ 47 0
82 NGC 3516 Sy1 11 06 47.4596406816 +72 34 07.189563769   13.12 12.40     ~ 1426 0
83 [VV96] J111132.1+554725 QSO 11 11 32.1905428909 +55 47 26.087894257   17.20 17.02     ~ 45 0
84 QSO J1112+3539 QSO 11 12 39.1140455126 +35 39 28.196946732   16.9 18.06 17.1   ~ 27 0
85 Ton 576 Sy1 11 17 54.3258589805 +26 34 16.601128908   17.23 17.07     ~ 29 0
86 2MASSI J1118302+402553 Sy1 11 18 30.2896275867 +40 25 54.069567643   16.34 16.21     ~ 192 0
87 Ton 1388 Sy1 11 19 08.6786143504 +21 19 17.986556889   14.91 14.80     ~ 419 0
88 2MASS J11211423+0325466 Sy1 11 21 14.2217027310 +03 25 46.738587071   17.83 17.57     ~ 34 0
89 QSO J1122+5755 QSO 11 22 44.8870743927 +57 55 43.095845457   17.92 17.64     ~ 31 0
90 2MASSI J1124392+420144 Sy1 11 24 39.1798727783 +42 01 45.013639656   16.45 16.28     ~ 136 0
91 SBSG 1123+594A QSO 11 25 53.7897157999 +59 10 21.551797488   17.02 16.80     ~ 54 0
92 Ton 580 Sy1 11 31 09.4822135528 +31 14 05.506427771   16.22 16.05 15.8   ~ 132 1
93 QSO J1133+0327 QSO 11 33 27.7853369704 +03 27 19.291014177   17.80 17.74     ~ 41 0
94 2MASS J11345760+2555279 QSO 11 34 57.6248616898 +25 55 27.891343913   16.5 17.13 17.0   ~ 19 0
95 NGC 3783 Sy1 11 39 01.7095761008 -37 44 19.008597647   12.46 13.43 11.33 12.1 ~ 1496 0
96 2E 2503 Sy1 11 39 57.0253396181 +65 47 49.482487703   16.50 16.32     ~ 492 1
97 LB 2126 QSO 11 51 20.4599330347 +54 37 33.049735861   16.03 15.78     ~ 146 0
98 6dFGS gJ115758.8-002221 Sy1 11 57 58.7280127535 -00 22 20.903141806   17.65 17.27     ~ 51 0
99 NGC 4051 Sy1 12 03 09.6098828919 +44 31 52.693714606   11.08 12.92 9.94   ~ 2014 1
100 2E 2584 Sy1 12 04 42.1097577213 +27 54 11.867990165   15.64 15.60     ~ 355 0
101 2MASS J12072101+2624292 QSO 12 07 20.9951422741 +26 24 29.094831204   17.67 17.45     ~ 13 0
102 QSO J1208+4540 QSO 12 08 58.0106507296 +45 40 35.422302500   16.00 15.70     ~ 179 0
103 2E 1208.0+3213 Sy1 12 10 37.5725267804 +31 57 06.020132087   16.91 16.68     ~ 80 1
104 2MASS J12111454+3657395 Sy1 12 11 14.5641470315 +36 57 39.515047736   17.10 16.78     ~ 28 0
105 PG 1216+069 Sy1 12 19 20.9316038223 +06 38 38.467864632   15.68 15.65     ~ 259 0
106 2MASSI J1220351+385316 Sy1 12 20 35.1004384704 +38 53 16.470092455   17.23 16.83     ~ 34 0
107 NGC 4395 Sy2 12 25 48.8639154223 +33 32 48.694684028 10.84 10.54 10.11 9.98   ~ 1015 1
108 2MASS J12305003+0115226 Sy1 12 30 50.0333182740 +01 15 22.597395500   14.44 14.42     ~ 88 0
109 LBQS 1230-0015 QSO 12 33 04.0514027570 -00 31 34.181064160   18.02 17.87 16.8   ~ 61 0
110 QSO J1233+4758 QSO 12 33 35.0739816672 +47 58 00.440212874   17.69 17.67     ~ 52 0
111 2MASS J12360401+2641358 Sy1 12 36 04.0250156300 +26 41 35.938376993   18.15 17.85     ~ 23 0
112 QSO J1241+5721 QSO 12 41 54.0240181142 +57 21 07.363873070   18.03 17.94     ~ 38 0
113 QSO J1245+3356 QSO 12 45 11.2585553606 +33 56 10.100141682   17.06 16.88     ~ 46 0
114 LB 2522 Sy1 13 01 12.9251198286 +59 02 06.693745440   16.04 15.89     ~ 250 0
115 ICRF J130533.0-103319 Sy1 13 05 33.0149111397 -10 33 19.430590671   15.18 15.23 14.46   ~ 505 1
116 PB 159 QSO 13 22 22.6817331287 +46 45 35.257304134   17.80 17.69     ~ 40 0
117 [VV2000] J132704.1+443504 QSO 13 27 04.1363651299 +44 35 05.006976342   18.56 18.34     ~ 30 0
118 2MASS J13304515+2813216 QSO 13 30 45.1502448460 +28 13 21.554549070   18.25 18.05     ~ 24 0
119 2E 3076 Sy1 13 30 53.2739768644 +31 19 30.578416257   17.65 17.41     ~ 45 0
120 QSO J1341+4123 QSO 13 41 00.7893963759 +41 23 14.131471417   17.04 16.76     ~ 117 0
121 2E 3124 Sy1 13 42 06.5683065662 +05 05 23.910605861   17.54 17.32     ~ 57 0
122 2MASS J13423123+3829032 Sy1 13 42 31.2263963819 +38 29 03.324625083   17.67 17.42     ~ 31 0
123 PB 4055 QSO 13 42 46.8915916745 +18 44 43.680385203           ~ 19 0
124 LBQS 1340-0038 QSO 13 42 51.6063318816 -00 53 45.389329298   17.15 16.98 17.418 16.198 ~ 68 0
125 Mrk 279 Sy1 13 53 03.4356451470 +69 18 29.410672989   15.15 14.46     ~ 699 0
126 2MASS J13562557+2515238 Sy1 13 56 25.5588219980 +25 15 23.681884580   20.82 20.08     ~ 24 1
127 2MASX J13571258+1704438 Sy1 13 57 12.6119439013 +17 04 44.090816548   18.30 17.87     ~ 17 0
128 QSO B1354+0450 QSO 13 57 26.2747676191 +04 35 41.512784629   17.59 17.23     ~ 39 0
129 QSO J1409+2618 QSO 14 09 23.9086975485 +26 18 21.053512073   16.07 15.74     ~ 181 0
130 NGC 5548 Sy1 14 17 59.5401093128 +25 08 12.600227883   14.35 13.73     ~ 2424 0
131 PB 2049 QSO 14 19 10.2070716029 +42 07 46.910320933   16.9 17.31 17.1   ~ 39 0
132 QSO J1435+3604 QSO 14 35 11.5257790930 +36 04 37.175185990   17.30 17.22     ~ 50 0
133 Mrk 817 Sy1 14 36 22.0820075123 +58 47 39.395406826   14.19 13.79     ~ 429 0
134 2MASS J14372609+5045556 Sy1 14 37 26.1400363588 +50 45 55.886189649   17.89 17.67     ~ 38 0
135 LBQS 1435-0134 QSO 14 37 48.2856366322 -01 47 10.817420126   16.11 15.78 16.39   ~ 68 0
136 QSO J1445+3428 QSO 14 45 11.2761938501 +34 28 25.458412453   17.82 17.73     ~ 28 0
137 2MASX J14510879+2709272 Sy1 14 51 08.7649690311 +27 09 26.964855405   15.01 15.01     ~ 158 0
138 [VV2006] J151428.6+361958 QSO 15 14 28.6533954139 +36 19 57.986587699   18.11 18.04     ~ 28 0
139 2MASS J15213967+0337292 Sy1 15 21 39.6660499907 +03 37 29.244576287   17.56 17.22     ~ 32 0
140 QSO B1521+1009 QSO 15 24 24.5235638849 +09 58 29.086612264   15.74 16.2     ~ 113 0
141 Ton 236 Sy1 15 28 40.6110393109 +28 25 29.843980426   16.44 16.39     ~ 65 0
142 Mrk 290 Sy1 15 35 52.4036488200 +57 54 09.516647866   15.55 15.27     ~ 457 0
143 2MASS J15455347+0936205 QSO 15 45 53.4846811241 +09 36 20.501145402   16.93 16.87     ~ 15 0
144 QSO J1550+4001 QSO 15 50 48.3037879593 +40 01 44.916428482   17.36 17.30     ~ 39 0
145 QSO J1553+3548 QSO 15 53 04.9286795051 +35 48 28.559705264   16.93 16.73     ~ 39 0
146 QSO J1555+3628 QSO 15 55 04.4020212990 +36 28 47.958676692   17.3 18.10 17.6   ~ 33 0
147 Mrk 876 Sy1 16 13 57.1791807197 +65 43 09.953889666   16.03 15.49     ~ 518 0
148 QSO J1616+4154 QSO 16 16 49.4248503286 +41 54 16.353947335   17.41 17.29     ~ 45 0
149 QSO J1619+3342 QSO 16 19 16.5425919659 +33 42 38.374637994   17.30 17.26     ~ 49 0
150 QSO B1626+5529 Sy1 16 27 56.1124169072 +55 22 31.559608363   15.79 15.68     ~ 188 0
151 QSO B1630+3744 QSO 16 32 01.1118986024 +37 37 49.980862599   16.50 16.30     ~ 163 0
152 2E 4066 Sy1 18 21 57.2365 +64 20 36.226   14.23 14.24     ~ 540 1
153 Mrk 509 Sy1 20 44 09.7504131334 -10 43 24.724854084   13.35 13.12 10.7   ~ 1140 0
154 Mrk 1513 Sy1 21 32 27.8163185343 +10 08 19.250705656   14.92 14.64     ~ 547 0
155 2MASS J21545109-4414057 Sy1 21 54 51.1074676203 -44 14 05.746197801     15.80     ~ 24 0
156 QSO J2155-0922 Sy1 21 55 01.5123415724 -09 22 24.351917710   13.9 16.8 14.1   ~ 159 1
157 UGC 12163 Sy1 22 42 39.3364258078 +29 43 31.301194419   14.86 14.16     ~ 621 1
158 2MASS J22484115-5109532 Sy1 22 48 41.1703517984 -51 09 53.324132792   15.60 15.43 15.5   ~ 64 0
159 NAME MR 2251-178 Sy1 22 54 05.8858021308 -17 34 55.403006841   14.99 14.36 15.12   ~ 379 3
160 QSO J2257+1340 QSO 22 57 38.2065477484 +13 40 45.502611146   17.25 17.15     ~ 38 0
161 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1907 3
162 PB 5524 QSO 23 45 00.4379710330 -00 59 36.071162685   17.66 17.44     ~ 47 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2014ApJ...794...75S and select 'bookmark this link' or equivalent in the popup menu


2020.11.30-21:10:31

© Université de Strasbourg/CNRS

    • Contact