2001A&A...370..900V

Query : 2001A&A...370..900V

2001A&A...370..900V - Astronomy and Astrophysics, volume 370900-908 (2001/5-2)

The BeppoSAX High Energy Large Area Survey. IV. On the soft X-ray properties of the hard X-ray-selected HELLAS sources.

VIGNALI C., COMASTRI A., FIORE F. and LA FRANCA F.

Abstract (from CDS):

We present a comprehensive study of the soft X-ray properties of the BeppoSAX High-Energy Large Area Survey (HELLAS) sources. A large fraction (about 2/3) of the hard X-ray selected sources is detected by ROSAT. The soft X-ray colors for many of these objects, along with the 0.5-2 keV flux upper limits for those undetected in the ROSAT band, do imply the presence of absorption. The comparison with the ROSAT Deep Survey sources indicates that a larger fraction of absorbed objects among the HELLAS sources is present, in agreement with their hard X-ray selection and the predictions of the X-ray background synthesis models. Another striking result is the presence of a soft (additional) X-ray component in a significant fraction of absorbed objects.

Abstract Copyright: ∼

Journal keyword(s): surveys - galaxies: active - galaxies: nuclei - galaxies: starburst - X-rays: galaxies

VizieR on-line data: <Available at CDS (J/A+A/370/900): table1.dat>

Simbad objects: 69

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Number of rows : 69
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 6dFGS gJ002709.9-192613 Sy1 00 27 09.8 -19 26 12   18.34 18 18.11   ~ 11 0
2 SAX J0045.7-2515 Sy2 00 45 46.28759280 -25 15 49.6505880   19.110 17.9 17.817   ~ 13 0
3 HELLAS 107 X 00 48 05.8 -25 04 32           ~ 3 0
4 HELLAS 20 * 01 40 08.9 -67 48 13           ~ 4 0
5 QSO B0239-0012 QSO 02 42 00.9178726608 +00 00 21.099306708   18.70 18.70     ~ 47 0
6 HELLAS 174 X 02 42 09.4 +00 02 29           ~ 3 0
7 HELLAS 45 Sy1 03 15 47.5 -55 29 03     21.85 19.66   ~ 11 0
8 QSO B0316-5531 QSO 03 17 32.7 -55 20 25     17.97     ~ 11 0
9 1RXS J033311.8-361942 BLL 03 33 12.2677895088 -36 19 46.662911112   19.94   17.99   ~ 59 0
10 LEDA 74733 Sy1 03 34 07.9 -36 04 12   19.7 20.10     ~ 18 0
11 QSO B0335-364 Bla 03 36 54.0235343784 -36 16 06.220332408   18.40 18 18.7   ~ 80 1
12 LEDA 499934 Sy1 04 37 11.7 -47 31 47     17.3     ~ 8 0
13 HELLAS 54 AGN 04 38 47.9 -47 29 06           ~ 4 0
14 HELLAS 185 X 05 15 13.7 +01 08 07           ~ 3 0
15 HELLAS 57 X 05 20 48.3 -45 42 00           ~ 3 0
16 [VV2006] J064637.6-441533 QSO 06 46 37.6550238600 -44 15 34.606918548   18.43 16.60 17.39   ~ 11 0
17 2XMM J072135.9+711322 AGN 07 21 36.1924158312 +71 13 22.633697820           ~ 12 0
18 ZwCl 0735+7421 ClG 07 41 40.3 +74 14 58     17.70     ~ 273 0
19 HELLAS 393 X 07 41 45.2 +74 26 23           ~ 3 0
20 2E 1852 Sy1 07 43 12.5393029560 +74 29 36.758906988     17.53     ~ 27 0
21 2MASX J08373702+2547507 Sy1 08 37 37.0388008224 +25 47 50.539297812   19.19 18.33     ~ 31 0
22 LEDA 1764122 Sy2 08 38 59.2789772232 +26 08 13.073863380           ~ 27 0
23 HELLAS 137 X 09 46 32.8 -14 06 15           ~ 3 0
24 LEDA 2383543 Sy1 10 32 16.1349757824 +50 51 19.690798320   18.20 17.98     ~ 53 0
25 HELLAS 278 X 10 34 52.0 +39 40 12           ~ 3 0
26 HELLAS 321 rG 10 52 45.4 +57 30 42           ~ 3 0
27 2MASS J10542112+5725431 Sy1 10 54 21.1984001400 +57 25 44.284004364       18.80   ~ 47 1
28 4C 72.16 Bla 11 01 48.8056968600 +72 25 37.118997552   17.1 17.9 16.7   ~ 87 1
29 LEDA 33335 Sy1 11 02 36.7931619240 +72 46 38.509502016   17.09 16.40     ~ 61 0
30 [VV98] J110615.9+724413 QSO 11 06 16.0796544024 +72 44 13.901990676   18.4 19.10 18.5   ~ 19 1
31 2XMM J111813.7+402837 Sy1 11 18 13.8324608136 +40 28 38.009871768     20.9     ~ 14 0
32 [VV2000] J111848.7+402647 QSO 11 18 48.6771237168 +40 26 47.861867220   19.30 19.02     ~ 35 1
33 HELLAS 252 ClG 12 04 07.6 +28 08 30           ~ 4 0
34 Ton 605 HB* 12 16 53.6748432768 +30 04 08.692883544   16.110 15.98     B 223 0
35 HELLAS 292 X 12 17 45.1 +47 29 55           ~ 3 0
36 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
37 2MASS J12185468+2958067 Sy1 12 18 54.6852101520 +29 58 06.638486016   20.1 21     ~ 23 0
38 [WMR2006] NGC4258 XMM4 X 12 19 23.20 +47 09 37.2           ~ 4 0
39 QSO J1219+473 QSO 12 19 51.5 +47 21 09     19.4     ~ 13 0
40 1AXG J122155+7525 BLL 12 22 06.5665656120 +75 26 15.144120672     18.70 17.40   ~ 33 0
41 SDSS J124027.76-051400.7 Sy1 12 40 27.76008 -05 14 00.7080     18.8     ~ 7 0
42 HELLAS 157 X 12 56 09.9 -05 54 30           ~ 3 0
43 HELLAS 151 X 13 04 24.3 -10 23 53           ~ 3 0
44 SAX J1305.5-1032 Bla 13 05 32.4 -10 32 46           ~ 5 0
45 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
46 QSO B1340+0016 QSO 13 42 56.5179998064 +00 00 57.266019144   19.09 18.90     ~ 52 0
47 2XMM J134844.7-302943 Sy1 13 48 44.7007958808 -30 29 44.185887564     17.10     ~ 13 0
48 HELLAS 239 AGN 14 17 12.5 +24 59 28           ~ 4 0
49 BAX 214.6296+25.1806 ClG 14 18 31.2 +25 10 47           ~ 34 0
50 HELLAS 364 X 14 38 30.1 +64 30 25           ~ 3 0
51 NAME VLA J1528.7+1945 GrG 15 28 45.4 +19 45 04           ~ 13 0
52 SDSS J152847.68+193854.6 QSO 15 28 47.6903432592 +19 38 54.655560456   20.08 19.94     ~ 16 0
53 HELLAS 307 X 16 26 59.9 +55 28 20           ~ 3 0
54 HELLAS 201 X 16 49 57.9 +04 53 32           ~ 3 0
55 HELLAS 190 Sy1 16 52 38.0 +02 22 18     20.7     ~ 6 0
56 HELLAS 279 X 16 54 41.1 +40 02 10           ~ 3 0
57 HELLAS 375.2 X 17 42 36.3 +68 00 44           ~ 3 0
58 HELLAS 296 X 18 15 17.5 +49 44 51           ~ 3 0
59 HELLAS 147 AGN 20 42 47.6 -10 38 30           ~ 4 0
60 [VV2000] J204439.0-102800 QSO 20 44 34.9574809536 -10 28 09.074357616     17.79     ~ 9 0
61 HELLAS 85 X 22 03 00.5 -32 04 18           ~ 3 0
62 QSO B2224+2056 QSO 22 26 31.749 +21 11 37.71     17.70     ~ 12 0
63 1RXS J224123.5+294244 BL? 22 41 23.5354797865 +29 42 47.688450691           ~ 18 0
64 HELLAS 254 X 22 42 51.5 +29 35 32           ~ 3 0
65 HELLAS 212 X 23 02 36.2 +08 56 42           ~ 4 0
66 HELLAS 66 EmG 23 19 22.1 -42 41 50           ~ 4 0
67 HELLAS 209 Sy1 23 27 28.7 +08 49 25     18.5     ~ 7 0
68 [VV2006] J233154.3+193836 QSO 23 31 54.2943435528 +19 38 34.674145620     18.80     ~ 7 0
69 4C 28.59 BLL 23 55 54.2853293928 +28 35 57.938867880   18.1 17.8     ~ 64 1

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