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Query : 1999ApJ...513...76W |
1999ApJ...513...76W - Astrophys. J., 513, 76-107 (1999/March-1)
Investigation of the relation between the spectral energy distributions and the emission lines in low-redshift quasars.
WILKES B.J., KURASZKIEWICZ J., GREEN P.J., MATHUR S. and McDOWELL J.C.
Abstract (from CDS):
Our data do not favor a model in which changes in continuum shape (due to, e.g., a decreasing ionization parameter) cause the Baldwin effect. The data can instead be explained by an accretion disk (AD) model in which limb darkening and the projected surface area of an optically thick, geometrically thin disk combine to cause a viewing-angle-dependent UV luminosity and a more isotropic X-ray luminosity. The scatter in our correlations is larger than that expected from this AD model, suggesting the presence of dust, which reddens both the continuum and the broad emission lines. The C IV and C III] lines show flatter slopes and larger scatter in the line-continuum relations than predicted by the AD+dusty torus model. This may be due to a significant contribution from collisional excitation that is not directly related to the ionizing continuum.
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Active - Galaxies: Quasars: Emission Lines - Galaxies: Quasars: General
Simbad objects: 40
Number of rows : 40 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Mrk 1501 | Sy1 | 00 10 31.00590413 | +10 58 29.5042981 | 15.96 | 15.40 | 12.22 | ~ | 717 | 0 | ||
2 | LEDA 1790 | Sy1 | 00 29 13.7012449608 | +13 16 03.947778264 | 15.70 | 15.41 | ~ | 444 | 0 | |||
3 | 87GB 004432.0+030343 | Sy1 | 00 47 05.9186531064 | +03 19 54.784830324 | 16.2 | 16.37 | ~ | 146 | 2 | |||
4 | Mrk 1502 | Sy1 | 00 53 34.9331107632 | +12 41 35.929269132 | 14.41 | 14.03 | ~ | 1168 | 1 | |||
5 | [OKM2018] SWIFT J0056.9+1472 | Sy1 | 00 57 09.9306975096 | +14 46 10.142054004 | 16.56 | 16.29 | ~ | 165 | 0 | |||
6 | 2E 437 | Sy1 | 01 36 24.4208152464 | +20 57 27.522990972 | 18.15 | 18.10 | ~ | 360 | 2 | |||
7 | 3C 48 | QSO | 01 37 41.2996631208 | +33 09 35.080388820 | 16.62 | 16.20 | ~ | 2815 | 2 | |||
8 | Mrk 586 | Sy1 | 02 07 49.8619039200 | +02 42 55.876760568 | 15.67 | 15.41 | ~ | 191 | 0 | |||
9 | QSO J0311-7651 | BLL | 03 11 55.2496997640 | -76 51 50.848335324 | 15.27 | 16.09 | 16.10 | 15.33 | ~ | 225 | 1 | |
10 | QSO J0635-7516 | Bla | 06 35 46.5079301472 | -75 16 16.816418256 | 15.96 | 15.75 | 15.82 | ~ | 588 | 1 | ||
11 | 2MASS J08105865+7602424 | Sy1 | 08 10 58.6641543864 | +76 02 42.450451260 | 15.03 | 14.71 | ~ | 469 | 0 | |||
12 | 3C 206 | Sy1 | 08 39 50.5829445936 | -12 14 34.327188564 | 15.78 | 15.76 | ~ | 246 | 0 | |||
13 | Ton 951 | Sy1 | 08 47 42.4485615096 | +34 45 04.482515304 | 14.83 | 14.50 | ~ | 466 | 0 | |||
14 | LB 9308 | Sy1 | 09 06 31.8732919056 | +16 46 11.785679112 | 18.48 | 18.27 | ~ | 298 | 3 | |||
15 | Mrk 704 | Sy1 | 09 18 25.9971991776 | +16 18 19.633269600 | 14.82 | 14.20 | ~ | 272 | 0 | |||
16 | ICRF J092703.0+390220 | Sy1 | 09 27 03.01394144 | +39 02 20.8518067 | 17.17 | 17.00 | 16.486 | ~ | 1001 | 1 | ||
17 | LEDA 29208 | Sy1 | 10 04 20.1379926888 | +05 13 00.400882728 | 16.73 | 16.55 | ~ | 247 | 1 | |||
18 | 4C 13.41 | Sy1 | 10 07 26.0965408440 | +12 48 56.184940764 | 15.81 | 15.68 | ~ | 408 | 2 | |||
19 | 2MASS J10145491+0033374 | Sy1 | 10 14 54.9035635608 | +00 33 37.366161048 | 20.23 | 18.94 | 16.104 | ~ | 160 | 0 | ||
20 | ICRF J103059.0+310255 | Sy1 | 10 30 59.0936990784 | +31 02 55.723145964 | 17.07 | 16.71 | 16.1 | ~ | 187 | 1 | ||
21 | [OKM2018] SWIFT J1104.8+7689 | Sy1 | 11 04 13.8611496720 | +76 58 58.194549084 | 15.70 | 15.72 | 15.40 | ~ | 543 | 1 | ||
22 | Ton 1388 | Sy1 | 11 19 08.6786220240 | +21 19 17.987085948 | 14.91 | 14.80 | ~ | 466 | 0 | |||
23 | 2MASS J11243917+4201450 | Sy1 | 11 24 39.1797883104 | +42 01 45.014547252 | 16.45 | 16.28 | ~ | 157 | 0 | |||
24 | ICRF J113957.0+654749 | Sy1 | 11 39 57.0254367168 | +65 47 49.483232880 | 16.50 | 16.32 | ~ | 518 | 1 | |||
25 | LEDA 38224 | Sy1 | 12 04 42.1097215992 | +27 54 11.869350264 | 15.64 | 15.60 | ~ | 405 | 0 | |||
26 | PB 3894 | Sy1 | 12 14 17.6738687784 | +14 03 13.182723144 | 14.46 | 14.19 | ~ | 821 | 0 | |||
27 | ICRF J122011.8+020342 | Sy1 | 12 20 11.8846520568 | +02 03 42.223956876 | 16.15 | 15.97 | 15.6 | ~ | 326 | 1 | ||
28 | 3C 273 | BLL | 12 29 06.6998257176 | +02 03 08.597629980 | 13.05 | 14.830 | 14.11 | ~ | 5798 | 1 | ||
29 | LEDA 45656 | Sy1 | 13 09 47.0031619008 | +08 19 48.212362524 | 16.04 | 15.89 | ~ | 389 | 0 | |||
30 | 2XMM J135315.8+634546 | Sy1 | 13 53 15.8311116864 | +63 45 45.683126676 | 14.54 | 14.28 | ~ | 385 | 0 | |||
31 | QSO J1409+2618 | QSO | 14 09 23.9085820008 | +26 18 21.056458176 | 16.07 | 15.74 | ~ | 191 | 0 | |||
32 | [OKM2018] SWIFT J1419.0-1323 | Sy1 | 14 19 03.8170514760 | -13 10 44.785212600 | 16.46 | 16.10 | 16.50 | ~ | 235 | 0 | ||
33 | Mrk 841 | Sy1 | 15 04 01.1935384104 | +10 26 15.780409692 | 14.50 | 14.27 | ~ | 649 | 0 | |||
34 | Mrk 876 | Sy1 | 16 13 57.1795021224 | +65 43 09.952685328 | 16.03 | 15.49 | ~ | 583 | 0 | |||
35 | 3C 351.0 | Sy1 | 17 04 41.3742408840 | +60 44 30.520617000 | 15.65 | 15.40 | 15.30 | ~ | 757 | 1 | ||
36 | ICRF J172320.7+341757 | Sy1 | 17 23 20.7958610952 | +34 17 57.967381860 | 15.58 | 15.46 | ~ | 308 | 1 | |||
37 | QSO B1803+6737 | QSO | 18 03 28.8923260440 | +67 38 10.561677936 | 16.04 | 15.78 | ~ | 97 | 0 | |||
38 | Mrk 1513 | Sy1 | 21 32 27.8162556672 | +10 08 19.252365396 | 14.92 | 14.64 | ~ | 611 | 0 | |||
39 | ICRF J213745.1-143255 | Sy1 | 21 37 45.1959922824 | -14 32 55.695508728 | 15.41 | 15.63 | 15.53 | 15.0 | ~ | 372 | 0 | |
40 | LEDA 70504 | Sy1 | 23 07 02.9147133288 | +04 32 57.101475624 | 16.32 | 15.50 | ~ | 117 | 0 |
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