2004ApJ...608..208N

Query : 2004ApJ...608..208N

2004ApJ...608..208N - Astrophys. J., 608, 208-219 (2004/June-2)

An X-ray investigation of the NGC 346 field in the Small Magellanic Cloud. III. XMM-Newton data.

NAZE Y., MANFROID J., STEVENS I.R., CORCORAN M.F. and FLORES A.

Abstract (from CDS):

We present new XMM-Newton results on the field around the NGC 346 star cluster in the SMC. This continues and extends previously published work on Chandra observations of the same field. The two XMM-Newton observations were obtained, respectively, 6 months before and 6 months after the previously published Chandra data. Of the 51 X-ray sources detected with XMM-Newton, 29 were already detected with Chandra. Comparing the properties of these X-ray sources in each of our three data sets has enabled us to investigate their variability on timescales of a year. Changes in the flux levels and/or spectral properties were observed for 21 of these sources. In addition, we discovered long-term variations in the X-ray properties of the peculiar system HD 5980, a luminous blue variable star that is likely to be a colliding wind binary system, which displayed the largest luminosity during the first XMM-Newton observation.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Individual: NGC Number: NGC 346 - Galaxies: Magellanic Clouds - X-Rays: Binaries - X-Rays: Individual: NGC Number: NGC 346

Nomenclature: Table 1: [NMS2004] A (Nos A-V).

Simbad objects: 66

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Number of rows : 66
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
2 2MASS J00565129-7208034 RB? 00 56 51.3341829312 -72 08 03.359058828 19.09 18.59 17.70   16.78 ~ 2 0
3 RX J0056.9-7211 * 00 56 54.1 -72 11 57   21.87 21.32     F5III 4 0
4 2MASS J00571280-7210421 AG? 00 57 12.80 -72 10 42.2   17.68 17.14     ~ 3 0
5 XMMU J005722.7-721757 AG? 00 57 22.768 -72 17 57.13           ~ 3 0
6 XMMU J005725.6-721646 X 00 57 26.015 -72 16 48.53           ~ 2 0
7 2E 238 AG? 00 57 32.7654620568 -72 13 02.183006892   15.4       ~ 15 0
8 [MA93] 1020 HXB 00 57 36.0162576624 -72 19 34.056483744 14.89 15.95 16.008 15.79 15.806 B0/4e 42 0
9 XMMU J005741.8-720902 AG? 00 57 41.836 -72 09 02.94           ~ 3 0
10 [MA93] 1036 HXB 00 57 49.5745148088 -72 02 35.873596896   15.52 15.64     B0-B2III-V 54 0
11 [MA93] 1038 HXB 00 57 50.3868809664 -72 07 56.130650112 14.63 15.64 15.69   15.420 B1-2(Be-Fe) 42 0
12 GSC2 S01020205791 X 00 58 01.7 -72 13 51   19.36 19.11     ~ 3 0
13 XMMU J005802.4-721205 AG? 00 58 02.5439729328 -72 12 06.613706844           ~ 5 0
14 XMMU J005809.2-720827 AG? 00 58 09.211 -72 08 27.05           ~ 3 0
15 2XMM J005816.7-721806 X 00 58 16.860 -72 18 05.50           ~ 3 0
16 SNR B0056-72.5 SNR 00 58 18.40 -72 17 22.7   20.58 20.70     ~ 54 1
17 XMMU J005827.7-720458 AG? 00 58 27.718 -72 04 58.04           ~ 3 0
18 RX J0058.5-7208 AG? 00 58 30.101 -72 08 41.56   22.16 20.88     ~ 5 0
19 [NHS2003] 23 X 00 58 31.630 -72 09 51.48           ~ 3 0
20 RX J0058.6-7203 X 00 58 37.0 -72 03 11           ~ 4 0
21 XMMU J005839.5-720227 AG? 00 58 39.564 -72 02 27.46   19.97 20.05     ~ 3 0
22 XMMU J005846.1-715810 AG? 00 58 46.109 -71 58 10.26           ~ 2 0
23 XMMU J005900.8-721329 * 00 59 00.744 -72 13 28.75           A1III 2 0
24 [SBW2007b] 18 Y*O 00 59 03.34 -72 12 24.3           ~ 3 0
25 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 490 0
26 RX J0059.1-7216 * 00 59 08.7 -72 16 27   14.1       O7III 3 1
27 [SBW2007b] 30 Y*O 00 59 13.33 -72 16 19.1   19.39 19.29     ~ 3 0
28 OGLE SMC-SC8 151926 * 00 59 14.31 -72 22 45.5 14.56 15.55 15.57   15.76 B1-3(IV) 8 0
29 2MASS J00591439-7222322 AG? 00 59 14.40 -72 22 32.3           ~ 2 0
30 XMMU J005916.7-715629 AG? 00 59 16.772 -71 56 29.54           ~ 2 0
31 XMMU J005918.0-721112 X 00 59 18.146 -72 11 14.90   19.53 18.73     ~ 2 0
32 SXP 202 HXB 00 59 21.0398312736 -72 23 17.305459368 13.81 14.96 14.97   15.07 B0-B1V 42 0
33 [NHS2003] 40 RB? 00 59 25.0382315472 -72 14 32.189875548 19.56 18.77 17.68   16.45 ~ 3 0
34 HD 5980 WR* 00 59 26.5838833944 -72 09 53.927337312   11.13 11.31   11.029 WN4+O7I: 393 1
35 SNR B0057-72.2 SNR 00 59 27.40 -72 10 10.7   12.37 12.57     ~ 240 0
36 [SBW2007b] 107 Y*? 00 59 31.60 -72 14 18.6           ~ 3 0
37 XMMU J005935.0-720210 AG? 00 59 35.100 -72 02 10.57   19.97 19.42     ~ 3 0
38 [NHS2003] 47 X 00 59 35.530 -72 08 34.73           ~ 3 0
39 XMMU J005946.7-720056 AG? 00 59 46.723 -72 00 56.96           ~ 2 0
40 [HFP2000] 102 X 00 59 47.5 -72 00 46           ~ 2 0
41 XMMU J005952.8-721531 AG? 00 59 52.865 -72 15 31.69           ~ 3 0
42 OGLE SMC108.4 11919 Q? 01 00 05.10 -71 59 21.7     20.52   19.95 ~ 3 0
43 XMMU J010005.8-715725 QSO 01 00 05.70 -71 57 23.5     19.09   18.66 ~ 7 0
44 XMMU J010011.8-722013 Rad 01 00 11.5 -72 20 07           ~ 4 0
45 XMMU J010012.0-722014 AG? 01 00 11.9695270344 -72 20 14.024611356           ~ 2 0
46 RX J0100.2-7204 HXB 01 00 15.752 -72 04 43.40   22.39 21.32     ~ 10 0
47 [NHS2003] 61 AG? 01 00 17.681 -72 10 51.52   18.80 18.87     ~ 3 0
48 [SG2005] SMC 45 HXB 01 00 22.9 -72 11 27     17.0     ~ 3 0
49 [HFP2000] 207 X 01 00 25.3 -72 20 32           ~ 3 0
50 LIN 365 HXB 01 00 30.0419190960 -72 20 33.457757496   14.53 14.6     B1.5e 21 0
51 [HFP2000] 103 X 01 00 34.4 -72 00 59           ~ 2 0
52 [SG2005] SMC 39 HX? 01 00 37.3 -72 13 17   16.62 16.7     B2V 6 0
53 PSR J0100-7211 Psr 01 00 42.86 -72 11 33.3   17.69 17.82     B3V 95 0
54 XMMU J010049.2-720347 X 01 00 49.2 -72 03 46           ~ 2 0
55 XMMU J010049.9-720351 X 01 00 49.9 -72 03 51           ~ 1 0
56 RX J0100.8-7214 AG? 01 00 50.026 -72 14 08.34           ~ 4 0
57 USNO-B1.0 0176-00047908 QSO 01 00 57.77 -72 22 30.8     21.85   20.73 ~ 7 0
58 [MA93] 1240 HXB 01 01 02.8880678424 -72 06 58.964665824   15.68 15.757 15.52 15.576 B0-B2III-V 48 0
59 RX J0101.0-7211 X 01 01 03.2 -72 11 29           ~ 3 0
60 [NMS2004] R X 01 01 03.672 -72 15 35.98           ~ 2 0
61 XMMU J010103.8-721007 * 01 01 07.9 -72 10 26   18.47 18.42     B6V 3 0
62 [MA93] 1257 HXB 01 01 20.6635900032 -72 11 18.965108724 14.41 15.36 15.49   15.53 B0.5-B2IV-V 47 0
63 MQS J010127.42-721306.4 QSO 01 01 27.75 -72 13 06.2     20.58   19.79 ~ 4 0
64 RX J0101.6-7204 HXB 01 01 29.80 -72 04 02.0   16.4 17.7     Be 16 0
65 XMMU J010133.3-721319 AG? 01 01 33.395 -72 13 19.22           ~ 2 0
66 [MA93] 1277 Em* 01 01 36.8929963272 -72 04 15.009765564   15.42 16.3     B1V 8 0

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