2010A&A...519A..96M

Query : 2010A&A...519A..96M

2010A&A...519A..96M - Astronomy and Astrophysics, volume 519, A96-96 (2010/9-1)

Unveiling the nature of INTEGRAL objects through optical spectroscopy. VIII. Identification of 44 newly detected hard X-ray sources.

MASETTI N., PARISI P., PALAZZI E., JIMENEZ-BAILON E., CHAVUSHYAN V., BASSANI L., BAZZANO A., BIRD A.J., DEAN A.J., CHARLES P.A., GALAZ G., LANDI R., MALIZIA A., MASON E., McBRIDE V.A., MINNITI D., MORELLI L., SCHIAVONE F., STEPHEN J.B. and UBERTINI P.

Abstract (from CDS):

Hard X-ray surveys performed by the INTEGRAL satellite have discovered a conspicuous fraction (up to 30%) of unidentified objects among the detected sources. Here we continue our program of identification of these objects by (i) selecting probable optical candidates by means of positional cross-correlation of the INTEGRAL detections with soft X-ray, radio, and/or optical archives and (ii) performing optical spectroscopy on them. As a result, we pinpointed and identified, or more accurately characterized, 44 definite or likely counterparts of INTEGRAL sources. Among them, 32 are active galactic nuclei (AGNs; 18 with broad emission lines, 13 with narrow emission lines only, and one X-ray bright, optically normal galaxy) with redshift 0.019<z<0.6058, 6 cataclysmic variables (CVs), 5 high-mass X-ray binaries (2 of which in the Small Magellanic Cloud), and 1 low-mass X-ray binary. This was achieved by using 7 telescopes of various sizes and archival data from two online spectroscopic surveys. The main physical parameters of these hard X-ray sources were also determined using the multiwavelength information available in the literature. In general, AGNs are the most abundant population among hard X-ray objects, and our results confirm the tendency of finding AGNs more frequently than any other type of hard X-ray emitting object among unidentified INTEGRAL sources when optical spectroscopy is used as an identification tool. Moreover, the deeper sensitivity of the more recent INTEGRAL surveys enables one to begin detecting hard X-ray emission above 20keV from sources such as LINER-type AGNs and non-magnetic CVs.

Abstract Copyright: ∼

Journal keyword(s): galaxies: Seyfert - quasars: emission lines - X-rays: binaries - novae, cataclysmic variables - X-rays: general - techniques: spectroscopic

Simbad objects: 48

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Number of rows : 48
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 2MASS J00155418+5602575 Sy1 00 15 54.1825383768 +56 02 57.532099884   17.3   17.0   ~ 6 0
2 LEDA 590243 Sy2 00 46 20.7 -40 05 49           ~ 10 0
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
4 SXP 11.5 HXB 01 04 42.28 -72 54 03.7   14.81 14.81     O8.5-9.5IIIe 31 1
5 IRAS 01509+6423 Sy2 01 54 35.2698767112 +64 37 57.487321128           ~ 19 1
6 [DI91] 286 HXB 02 06 45.1771801848 -74 27 47.607216840   14.95 15.00 15.09 14.81 B1III 10 0
7 ICRF J020834.9-173934 Sy1 02 08 34.9432950096 -17 39 34.682556960           ~ 29 0
8 2MASX J03343279+1508012 Sy2 03 34 32.7684555624 +15 08 01.124445768           ~ 6 0
9 IGR J04451-0445 SyG 04 44 52.93 -04 46 39.5           ~ 3 1
10 USNO-A2.0 1350-05105569 CV* 04 57 06.9748962024 +45 27 48.560418072   18.3   17.5   ~ 9 0
11 USNO-A2.0 1500-04199448 SyG 05 24 28.6143115128 +64 44 43.738642968   17.9   15.7   ~ 2 0
12 LEDA 3707147 Sy1 06 05 48.9581853768 -27 54 39.994402968   17.46   16.39   ~ 33 0
13 GLEAM J062909-140445 Sy2 06 29 09.3 -14 04 52   20.8   18.8   ~ 5 1
14 IGR J06293-1359 Sy1 06 29 20.22 -13 55 23.9           ~ 4 0
15 PBC J0801.2-4625 CV* 08 01 16.873 -46 23 28.16   15.0 14.9 14.8   ~ 9 0
16 IGR J08023-6954 gam 08 02 41.6410941096 -69 53 37.790960064   16.0   13.3 13.18 ~ 7 0
17 SS 188 HXB 08 26 13.6542691584 -37 37 11.872602552   13.47 12.33     OB 15 0
18 2MASS J08452137-3530242 Sy1 08 45 21.3731814816 -35 30 24.207500052   17.5   17.2   ~ 23 0
19 MCG+11-11-032 Sy2 08 55 12.5539742880 +64 23 45.428865000   17       ~ 59 0
20 2MASS J09091875+2737337 Sy1 09 09 18.7517148216 +27 37 33.895181064   19.42 19.21 18.1   ~ 7 0
21 UGC 5881 Sy2 10 46 42.516 +25 55 53.57   15.0       ~ 83 0
22 ICRF J114553.6-695401 Sy1 11 45 53.6240870832 -69 54 01.798095240   16.90       ~ 63 1
23 Z 215-46 Sy1 12 10 44.2769901360 +38 20 10.198509684   16.49 15.92     ~ 83 0
24 IGR J12123-5802 CV* 12 12 26.2190499264 -58 00 20.501811108   17.2   15.4   ~ 13 0
25 IGR J12482-5828 Sy2 12 47 57.843 -58 29 59.97   16.1   14.8   ~ 25 0
26 LEDA 2827505 Sy1 13 16 54.3015736800 -71 55 27.022469556           ~ 29 0
27 [VV2006] J131831.2+031948 QSO 13 18 31.2176627856 +03 19 48.736043076   18.09 17.95     ~ 29 0
28 IGR J14301-4158 Sy2 14 30 12.17 -41 58 31.4           ~ 11 1
29 LEDA 225607 Sy1 15 14 41.9567366280 -81 23 38.013343188   17.30   15.83   ~ 43 0
30 2MASS J15305178-3734573 Sy1 15 30 51.7809455904 -37 34 57.323014860   17.5   16.7   ~ 10 0
31 LEDA 160710 Sy2 15 54 46.7509943640 -37 38 19.163805360   15.93   14.14   ~ 24 2
32 IGR J16287-5021 LXB 16 28 27 -50 22.7           ~ 18 0
33 IGR J16318-4848 HXB 16 31 48.3090342864 -48 49 00.665054832         16.217 B[e]I 172 0
34 EM* VRMF 55 HXB 16 32 39.9402289536 -49 42 13.686446160     15     OB 13 0
35 IGR J16547-1916 CV* 16 54 43.7313487104 -19 16 31.062050724   15.6   15.6   ~ 28 0
36 FIRST J170052.9+355956 Sy2 17 00 52.9940339712 +35 59 56.313083328   16.6   14.4   ~ 13 0
37 ATO J271.9579+11.3469 Sy1 18 07 49.9122459888 +11 20 49.040792988           ~ 32 0
38 LEDA 1365707 Sy2 18 30 50.6344608912 +09 28 41.902626540           ~ 40 0
39 LEDA 206628 Sy2 18 31 14.7432621360 -33 36 08.508146220   18.60   16.58   ~ 12 2
40 6dFGS gJ190750.4-392332 Sy1 19 07 50.3587824624 -39 23 31.810246980   17.29   15.51   ~ 24 0
41 [IC56] 31 HXB 19 11 18.8262927312 +15 32 32.775254916       14.33   Be 9 0
42 IGR J19118-1707 Sy2 19 11 42.64 -17 10 05.1           ~ 12 1
43 LEDA 2829969 Sy1 19 19 28.0442754000 -29 58 08.064829560   17.71   15.90   ~ 44 1
44 2MASS J19551247+0045365 CV* 19 55 12.4799164872 +00 45 36.864000540   15.6 16 16.0   ~ 27 0
45 1RXS J211336.1+542226 CV* 21 13 35.3828742552 +54 22 32.940457932   19.8 18.3 18.8   ~ 15 0
46 LEDA 2034356 Sy1 21 19 29.128 +33 32 56.67           ~ 41 0
47 2MASS J21394497+5950150 Sy1 21 39 44.9632626552 +59 50 15.025543152   20.7   18.7   ~ 26 0
48 8C 2227+665 Sy1 22 29 13.8516769920 +66 46 51.449969748           ~ 32 2

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