2001A&A...371..527W


Query : 2001A&A...371..527W

2001A&A...371..527W - Astronomy and Astrophysics, volume 371, 527-537 (2001/5-4)

An X-ray selected sample of radio-loud quasars.

WOLTER A. and CELOTTI A.

Abstract (from CDS):

We construct the first X-ray selected sample of broad line radio-loud AGN from the EMSS survey. In order to test unifying schemes for radio-loud objects, their spectral and statistical properties (both flat and steep spectrum objects) are examined and compared with those of other samples of blazars. The X-ray selection allows us to explore properties of radio-loud quasars 10-100 weaker in the radio band than classical samples. The most convincing interpretation of our results is that there are no radio-loud quasars whose synchrotron emission peak reaches the EUV-soft X-ray band at these (radio) flux levels. Moreover, due to the comparatively weak non-thermal emission, a quasi-thermal component appears to contribute at optical-UV energies. The detection of sources at low radio fluxes also reveals a large population of steep spectrum quasars and the lack of the predicted turnover in the quasar (radio) counts. The evolution of X-ray selected radio-loud quasars does not significantly differ from that of radio-selected ones, and flat spectrum and steep spectrum sources appear to behave quite similarly.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: luminosity function - quasars: general - radio continuum: galaxies - X-rays: galaxies

Simbad objects: 39

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Number of rows : 39
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 LBQS 0012-0024 QSO 00 15 07.0091850480 -00 08 00.972641868   18.96 18.56     ~ 49 0
2 4C -02.04B QSO 00 41 26.0088824640 -01 43 15.682809108   16 15.0     ~ 93 2
3 [VV96] J004146.4-014944 QSO 00 41 46.8524935728 -01 50 01.407672060   19.1 19.0 18.9   ~ 12 0
4 [VV96] J005549.3-101859 QSO 00 55 50.7585799272 -10 19 05.764020672   18.90 18.59     ~ 25 0
5 QSO B0136.3+0605 BLL 01 38 55.7186477424 +06 21 32.556834396     18.52     ~ 23 1
6 [VV96] J015503.7+043825 QSO 01 55 03.7253928816 +04 38 30.353943048     19.17     ~ 30 0
7 [VV96] J022759.2-103835 QSO 02 27 59.2770453024 -10 38 36.368919060     19.34     ~ 9 0
8 QSO B0226-1041 QSO 02 29 21.2140182240 -10 27 48.751224012     18.5     ~ 17 1
9 4C -04.06 QSO 02 35 07.3418452008 -04 02 05.317096956   16.61 16.46 16.2   ~ 197 1
10 [VV96] J031415.1-075033 QSO 03 14 13.7237361384 -07 50 23.668817316   19.15 18.74     ~ 25 0
11 QSO J0403-3605 QSO 04 03 53.7498574512 -36 05 01.915228284   17.04 17.17 16.67   ~ 254 1
12 QSO B0438.6-1049 QSO 04 40 59.3714333904 -10 44 38.313169440     18.97     ~ 15 0
13 [VV96] J053008.7+792105 QSO 05 30 07.9479148656 +79 20 54.133083132     17.45     ~ 13 0
14 7C 080759.79+484020.00 QSO 08 11 37.2227938536 +48 31 33.828308976   18.62 18.40     ~ 43 1
15 2E 0815.7+5233 ClG 08 19 32.9 +52 24 12     20.75     ~ 10 0
16 [VV96] J082442.4+030003 QSO 08 24 43.7227807392 +03 00 20.803559976   17.92 17.74     ~ 7 0
17 2E 0828.7+6601 Sy1 08 33 14.5 +65 51 08     20.21     ~ 7 0
18 3C 204 QSO 08 37 45.0013678200 +65 13 35.305376376   18.76 18.21     ~ 172 1
19 QSO B0849.0+2845 QSO 08 52 05.1696909672 +28 33 59.730083064   19.86 19.49 19.1   ~ 49 0
20 QSO B0850.2+2825 QSO 08 53 17.8287531816 +28 13 49.996624692   18.61 18.32 17.5   ~ 51 1
21 [VV96] J100226.4+685833 QSO 10 02 29.5075630560 +68 58 40.358250984   19.76 19.41     ~ 10 0
22 [VV96] J100621.7+124534 BLL 10 06 21.6907286352 +12 45 33.039367164   19.00 18.73     ~ 30 1
23 2E 1050.9+5418 AGN 10 53 58.0 +54 02 24     19.25     ~ 5 0
24 8C 1138+658 QSO 11 41 26.8123940880 +65 36 22.322676744     18.30     ~ 23 1
25 8C 1234+668 QSO 12 37 04.7685810888 +66 34 54.575633748   18.62 18.38     ~ 36 1
26 6C 131109+321122 BLL 13 13 27.4 +31 55 23   19.52 19.10 17.58   ~ 25 1
27 [VV96] J132903.1+253125 QSO 13 29 03.2089940496 +25 31 10.187755212   17.4 17.80 17.0   ~ 29 0
28 SDSS J134300.17+284407.5 Sy1 13 43 00.1795834440 +28 44 07.508553540   17.54 17.07 16.5   ~ 88 1
29 7C 144255.29+634509.00 QSO 14 43 58.6007128152 +63 32 26.364007788   18.33 17.77 17.1   ~ 55 1
30 4C 26.48B QSO 16 25 30.6871995120 +27 05 46.337820936   18.79 18.73     ~ 47 1
31 QSO B1640+396 QSO 16 41 47.5389998880 +39 35 03.321075804   20.01 19.83     ~ 60 1
32 [VV96] J165855.9+352005 QSO 16 58 57.711 +35 19 58.97     20.24     ~ 14 0
33 4C 45.38 QSO 18 39 16.6 +45 41 00     19.38     ~ 8 1
34 QSO B2037-005 QSO 20 39 52.1743522320 -00 24 47.101661280   18.29 18.19     ~ 31 0
35 [VV96] J211619.4+050726 QSO 21 16 19.3531999032 +05 07 26.484811536     20.37     ~ 9 0
36 ICRF J214335.5+174348 Sy1 21 43 35.5445200296 +17 43 48.786773700   15.91 15.73 15.17   ~ 362 1
37 [VV96] J214540.7+144325 QSO 21 45 41.6 +14 43 37     20.40     ~ 11 2
38 [VV96] J225027.7-064737 QSO 22 50 26.410 -06 47 42.91     20.82     ~ 9 0
39 QSO B2329-384 QSO 23 31 59.4760874208 -38 11 47.650824708   17.33 17.04     ~ 68 1

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2022.05.21-12:01:08

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