2001MNRAS.327..771F

Query : 2001MNRAS.327..771F

2001MNRAS.327..771F - Mon. Not. R. Astron. Soc., 327, 771-780 (2001/November-1)

The BeppoSAX High Energy Large Area Survey (HELLAS) - II. Number counts and X-ray spectral properties.

FIORE F., GIOMMI P., VIGNALI C., COMASTRI A., MATT G., PEROLA G.C., LA FRANCA F., MOLENDI S., TAMBURELLI F. and ANTONELLI L.A.

Abstract (from CDS):

The BeppoSAX High Energy Large Area Survey (HELLAS) has surveyed about 85 deg2 of sky in the 5-10keV band down to a flux of 4-5.10–14erg.cm–2.s–1. The source surface density of 16.9±6.4deg–2 at the survey limit corresponds to a resolved fraction of the 5-10keV X-ray background (XRB) of the order of 20-30 per cent.

Hardness ratio analysis indicates that the spectra of a substantial fraction of the HELLAS sources (at least one-third) are harder than a alphaE=0.6 power law. This hardness may be caused by large absorbing columns. The hardness ratio analysis also indicates that many HELLAS sources may have a spectrum more complex than a single absorbed power law. A soft component, superimposed on a strongly cut-off power law, is likely to be present in several sources.


Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): galaxies: active - X-rays: diffuse background - X-rays: galaxies - X-rays: general

VizieR on-line data: <Available at CDS (J/MNRAS/327/771): table2.dat>

Nomenclature: Table 2: HELLAS NNN, HELLAS NNN.N, N=147 among (Nos 6-431).

Simbad objects: 148

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Number of rows : 148
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 [VV2006c] J002636.1-194416 Sy2 00 26 33.4 -19 44 07     18.1     ~ 5 0
2 6dFGS gJ002709.9-192613 Sy1 00 27 09.8 -19 26 12   18.34 18 18.11   ~ 11 0
3 HELLAS 121 X 00 27 43.9 -19 30 29           ~ 2 0
4 SAX J0045.7-2515 Sy2 00 45 46.28759280 -25 15 49.6505880   19.110 17.9 17.817   ~ 13 0
5 HELLAS 107 X 00 48 05.8 -25 04 32           ~ 3 0
6 HELLAS 431 X 01 18 03.9 +89 20 12           ~ 2 0
7 SAX J0122.1-5845 Sy2 01 21 56.9500305768 -58 44 41.273336436           ~ 8 0
8 HELLAS 99 X 01 34 14.3 -29 45 41           ~ 2 0
9 HELLAS 90 X 01 34 28.6 -30 06 34           ~ 2 0
10 HELLAS 93 AGN 01 34 33.3 -29 58 38           ~ 3 0
11 HELLAS 91 X 01 34 49.6 -30 02 34           ~ 2 0
12 [VV2006] J013532.7-295202 QSO 01 35 32.7247656744 -29 52 01.451813772   18.44       ~ 8 0
13 HELLAS 20 * 01 40 08.9 -67 48 13           ~ 4 0
14 HELLAS 426 X 01 53 03.9 +89 12 20           ~ 2 0
15 QSO B0239-0012 QSO 02 42 00.9178726608 +00 00 21.099306708   18.70 18.70     ~ 47 0
16 HELLAS 174 X 02 42 09.4 +00 02 29           ~ 3 0
17 HELLAS 424 X 03 08 08.5 +89 08 41           ~ 2 0
18 HELLAS 195 X 03 08 19.0 +02 46 27           ~ 2 0
19 HELLAS 45 Sy1 03 15 47.5 -55 29 03     21.85 19.66   ~ 11 0
20 QSO B0316-5531 QSO 03 17 32.7 -55 20 25     17.97     ~ 11 0
21 1RXS J033311.8-361942 BLL 03 33 12.2677895088 -36 19 46.662911112   19.94   17.99   ~ 59 0
22 LEDA 74733 Sy1 03 34 07.9 -36 04 12   19.7 20.10     ~ 18 0
23 QSO B0335-364 Bla 03 36 54.0235343784 -36 16 06.220332408   18.40 18 18.7   ~ 80 1
24 HELLAS 203 X 04 32 27.9 +05 13 05           ~ 2 0
25 LEDA 499934 Sy1 04 37 11.7 -47 31 47     17.3     ~ 8 0
26 HELLAS 54 AGN 04 38 47.9 -47 29 06           ~ 4 0
27 HELLAS 220 X 05 02 15.5 +12 04 07           ~ 2 0
28 HELLAS 185 X 05 15 13.7 +01 08 07           ~ 3 0
29 HELLAS 57 X 05 20 48.3 -45 42 00           ~ 3 0
30 SAX J0548.6-6052 X 05 48 37.9 -60 52 17           ~ 3 0
31 SAX J0549.9-6102 X 05 49 59.5 -61 02 49           ~ 3 0
32 HELLAS 30 X 05 52 06.1 -60 59 48           ~ 2 0
33 HELLAS 31 X 05 52 51.3 -60 57 18           ~ 2 0
34 HELLAS 6 X 06 23 56.6 -69 21 13           ~ 2 0
35 HELLAS 8 X 06 25 31.3 -69 19 09           ~ 2 0
36 [VV2006] J064637.6-441533 QSO 06 46 37.6550238600 -44 15 34.606918548   18.43 16.60 17.39   ~ 11 0
37 HELLAS 58 X 06 46 42.7 -44 32 29           ~ 2 0
38 HELLAS 405 X 06 55 39.6 +79 10 48           ~ 2 0
39 2XMM J072135.9+711322 AGN 07 21 36.1924158312 +71 13 22.633697820           ~ 12 0
40 ZwCl 0735+7421 ClG 07 41 40.3 +74 14 58     17.70     ~ 273 0
41 HELLAS 393 X 07 41 45.2 +74 26 23           ~ 3 0
42 2E 1852 Sy1 07 43 12.5393029560 +74 29 36.758906988     17.53     ~ 27 0
43 2MASX J08373702+2547507 Sy1 08 37 37.0388008224 +25 47 50.539297812   19.19 18.33     ~ 31 0
44 LEDA 1764122 Sy2 08 38 59.2789772232 +26 08 13.073863380           ~ 27 0
45 HELLAS 138 X 09 46 05.3 -14 02 59           ~ 2 0
46 HELLAS 136 X 09 46 17.9 -14 10 27           ~ 2 0
47 HELLAS 137 X 09 46 32.8 -14 06 15           ~ 3 0
48 HELLAS 299 X 10 29 19.1 +50 48 15           ~ 2 0
49 LEDA 2383543 Sy1 10 32 16.1349757824 +50 51 19.690798320   18.20 17.98     ~ 53 0
50 HELLAS 273 X 10 34 43.1 +39 29 18           ~ 2 0
51 HELLAS 278 X 10 34 52.0 +39 40 12           ~ 3 0
52 HELLAS 321 rG 10 52 45.4 +57 30 42           ~ 3 0
53 2MASS J10542112+5725431 Sy1 10 54 21.1984001400 +57 25 44.284004364       18.80   ~ 47 1
54 HELLAS 323 X 10 54 21.7 +57 36 24           ~ 2 0
55 4C 72.16 Bla 11 01 48.8056968600 +72 25 37.118997552   17.1 17.9 16.7   ~ 87 1
56 LEDA 33335 Sy1 11 02 36.7931619240 +72 46 38.509502016   17.09 16.40     ~ 61 0
57 [VV98] J110615.9+724413 QSO 11 06 16.0796544024 +72 44 13.901990676   18.4 19.10 18.5   ~ 19 1
58 HELLAS 131 X 11 07 04.9 -18 16 28           ~ 2 0
59 2XMM J111813.7+402837 Sy1 11 18 13.8324608136 +40 28 38.009871768     20.9     ~ 14 0
60 [VV2000] J111848.7+402647 QSO 11 18 48.6771237168 +40 26 47.861867220   19.30 19.02     ~ 35 1
61 HELLAS 380 X 11 34 52.7 +70 23 09           ~ 2 0
62 HELLAS 372 X 11 56 39.2 +65 17 57           ~ 2 0
63 SAX J1156.9+6527 X 11 56 59.9 +65 27 48           ~ 3 0
64 HELLAS 252 ClG 12 04 07.6 +28 08 30           ~ 4 0
65 Ton 605 HB* 12 16 53.6748432768 +30 04 08.692883544   16.110 15.98     B 223 0
66 HELLAS 292 X 12 17 45.1 +47 29 55           ~ 3 0
67 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
68 2MASS J12185468+2958067 Sy1 12 18 54.6852101520 +29 58 06.638486016   20.1 21     ~ 23 0
69 [WMR2006] NGC4258 XMM4 X 12 19 23.20 +47 09 37.2           ~ 4 0
70 QSO J1219+473 QSO 12 19 51.5 +47 21 09     19.4     ~ 13 0
71 1AXG J122155+7525 BLL 12 22 06.5665656120 +75 26 15.144120672     18.70 17.40   ~ 33 0
72 HELLAS 186 X 12 29 23.7 +01 51 38           ~ 2 0
73 SDSS J124027.76-051400.7 Sy1 12 40 27.76008 -05 14 00.7080     18.8     ~ 7 0
74 HELLAS 169 EmG 12 40 29.6 -05 07 46           ~ 3 0
75 HELLAS 324 X 12 54 28.0 +59 21 01           ~ 2 0
76 HELLAS 161 X 12 55 16.6 -05 39 22           ~ 2 0
77 HELLAS 157 X 12 56 09.9 -05 54 30           ~ 3 0
78 HELLAS 151 X 13 04 24.3 -10 23 53           ~ 3 0
79 HELLAS 155 AGN 13 04 38.2 -10 15 47           ~ 3 0
80 HELLAS 162 X 13 04 45.1 -05 33 37           ~ 2 0
81 SAX J1305.5-1032 Bla 13 05 32.4 -10 32 46           ~ 5 0
82 HELLAS 160 X 13 05 36.5 -05 43 30           ~ 2 0
83 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
84 HELLAS 295 X 13 38 34.1 +48 21 05           ~ 2 0
85 HELLAS 180 X 13 42 47.9 +00 21 09           ~ 2 0
86 QSO B1340+0016 QSO 13 42 56.5179998064 +00 00 57.266019144   19.09 18.90     ~ 52 0
87 2MASX J13481941-3012017 Sy2 13 48 19.4115734304 -30 12 01.486438740   18.86 17.71     ~ 33 0
88 HELLAS 94 X 13 48 24.3 -30 25 47           ~ 2 0
89 HELLAS 101 X 13 48 37.9 -30 09 11           ~ 2 0
90 2XMM J134844.7-302943 Sy1 13 48 44.7007958808 -30 29 44.185887564     17.10     ~ 13 0
91 HELLAS 97 EmG 13 50 09.4 -30 19 55           ~ 3 0
92 2MASX J13535438+1820158 Sy1 13 53 54.4019994192 +18 20 16.074646764   19.55 18.15     ~ 16 0
93 HELLAS 226 X 13 55 54.1 +18 13 35           ~ 2 0
94 HELLAS 171 X 14 11 58.7 -03 07 02           ~ 2 0
95 HELLAS 239 AGN 14 17 12.5 +24 59 28           ~ 4 0
96 BAX 214.6296+25.1806 ClG 14 18 31.2 +25 10 47           ~ 34 0
97 HELLAS 364 X 14 38 30.1 +64 30 25           ~ 3 0
98 HELLAS 10 X 14 48 21.8 -69 20 30           ~ 2 0
99 Z 319-7 Sy2 15 19 33.6695280336 +65 35 58.521788592   15.7 13.9     ~ 55 0
100 NAME VLA J1528.7+1945 GrG 15 28 45.4 +19 45 04           ~ 13 0
101 SDSS J152847.68+193854.6 QSO 15 28 47.6903432592 +19 38 54.655560456   20.08 19.94     ~ 16 0
102 HELLAS 305 X 16 26 56.8 +55 13 24           ~ 2 0
103 HELLAS 307 X 16 26 59.9 +55 28 20           ~ 3 0
104 SAX J1634.1+5938 X 16 34 10.7 +59 37 44           ~ 3 0
105 HELLAS 328 X 16 34 11.0 +59 48 15           ~ 2 0
106 [VV2006c] J163418.5+594544 Sy1 16 34 12.9 +59 45 04     21.1     ~ 6 0
107 HELLAS 201 X 16 49 57.9 +04 53 32           ~ 3 0
108 HELLAS 200 AGN 16 50 40.1 +04 37 17           ~ 3 0
109 HELLAS 187 X 16 52 12.5 +02 11 29           ~ 2 0
110 HELLAS 190 Sy1 16 52 38.0 +02 22 18     20.7     ~ 6 0
111 HELLAS 279 X 16 54 41.1 +40 02 10           ~ 3 0
112 HELLAS 375.1 X 17 40 10.7 +67 42 50           ~ 2 0
113 HELLAS 375.2 X 17 42 36.3 +68 00 44           ~ 3 0
114 HELLAS 340.2 X 17 50 25.4 +60 56 01           ~ 2 0
115 SAX J1751.5+6100 X 17 51 30.3 +61 00 43           ~ 3 0
116 SAX J1752.6+6105 X 17 52 36.5 +61 05 33           ~ 3 0
117 SAX J1753.8+6059 X 17 53 50.9 +60 59 37           ~ 3 0
118 SAX J1803.8+6110 X 18 03 53.1 +61 10 24           ~ 3 0
119 HELLAS 296 X 18 15 17.5 +49 44 51           ~ 3 0
120 SAX J1818.9+6114 X 18 18 59.7 +61 14 48           ~ 3 0
121 SAX J1819.3+6056 X 18 19 18.5 +60 56 24           ~ 3 0
122 HELLAS 345 X 18 19 35.5 +60 58 46           ~ 2 0
123 SAX J1819.6+6053 X 18 19 39.5 +60 53 24           ~ 3 0
124 HELLAS 25 X 18 36 11.3 -65 07 20           ~ 2 0
125 HELLAS 147 AGN 20 42 47.6 -10 38 30           ~ 4 0
126 [VV2000] J204439.0-102800 QSO 20 44 34.9574809536 -10 28 09.074357616     17.79     ~ 9 0
127 HELLAS 413 X 21 22 59.2 +89 01 58           ~ 2 0
128 HELLAS 134 X 21 38 08.9 -14 33 13           ~ 2 0
129 HELLAS 432 X 21 42 46.7 +89 35 30           ~ 2 0
130 HELLAS 410 X 21 59 52.1 +88 54 53           ~ 2 0
131 HELLAS 85 X 22 03 00.5 -32 04 18           ~ 3 0
132 QSO B2224+2056 QSO 22 26 31.749 +21 11 37.71     17.70     ~ 12 0
133 HELLAS 213 X 22 31 49.6 +11 32 08           ~ 2 0
134 1RXS J224123.5+294244 BL? 22 41 23.5354797865 +29 42 47.688450691           ~ 18 0
135 HELLAS 254 X 22 42 51.5 +29 35 32           ~ 3 0
136 HELLAS 258 X 22 44 11.4 +29 51 14           ~ 2 0
137 HELLAS 206 X 23 02 30.1 +08 37 06           ~ 2 0
138 HELLAS 212 X 23 02 36.2 +08 56 42           ~ 4 0
139 HELLAS 210 X 23 06 59.2 +08 48 40           ~ 2 0
140 HELLAS 37 EmG 23 15 36.4 -59 03 40           ~ 3 0
141 HELLAS 35 X 23 16 09.8 -59 11 24           ~ 2 0
142 HELLAS 66 EmG 23 19 22.1 -42 41 50           ~ 4 0
143 HELLAS 209 Sy1 23 27 28.7 +08 49 25     18.5     ~ 7 0
144 HELLAS 207 X 23 27 37.1 +08 38 56           ~ 2 0
145 [VV2006] J232905.8+083414 Bla 23 29 05.78674920 +08 34 15.8542268     20.50 19.01   ~ 44 1
146 [VV2006] J233154.3+193836 QSO 23 31 54.2943435528 +19 38 34.674145620     18.80     ~ 7 0
147 HELLAS 249 X 23 55 32.7 +28 35 11           ~ 2 0
148 4C 28.59 BLL 23 55 54.2853293928 +28 35 57.938867880   18.1 17.8     ~ 64 1

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