2004A&A...418..841N


Query : 2004A&A...418..841N

2004A&A...418..841N - Astronomy and Astrophysics, volume 418, 841-855 (2004/5-2)

XMM-Newton observations of the giant HII region N11 in the LMC.

NAZE Y., ANTOKHIN I.I., RAUW G., CHU Y.-H., GOSSET E. and VREUX J.-M.

Abstract (from CDS):

Using the sensitive XMM-Newton observatory, we have observed the giant HII region N11 in the LMC for ∼30ks. We have detected several large areas of soft diffuse X-ray emission along with 37 point sources. One of the most interesting results is the possible association of a faint X-ray source with BSDL 188, a small extended object of uncertain nature. The OB associations in the field-of-view (LH9, LH10 and LH13) are all detected with XMM-Newton, but they appear very different from one another. The diffuse soft X-ray emission associated with LH9 peaks near HD 32228, a dense cluster of massive stars. The combined emission of all individual massive stars of LH9 and of the superbubble they have created is not sufficient to explain the high level of emission observed: hidden SNRs, colliding-wind binaries and the numerous pre-main sequence stars of the cluster are most likely the cause of this discrepancy. The superbubble may also be leaking some hot gas in the ISM since faint, soft emission can be observed to the south of the cluster. The X-ray emission from LH10 consists of three pointlike sources and a soft extended emission of low intensity. The two brightest point sources are clearly associated with the fastest expanding bubbles blown by hot stars in the SW part of the cluster. The total X-ray emission from LH10 is rather soft, although it presents a higher temperature than the other soft emissions of the field. The discrepancy between the combined emission of the stars and the observed luminosity is here less severe than for LH9 and could be explained in terms of hot gas filling the wind-blown bubbles. On the other hand, the case of LH13 is different: it does not harbour any extended emission and its X-ray emission could most probably be explained by the Sk -66°41 cluster alone. Finally, our XMM-Newton observation included simultaneous observations with the OM camera that provide us with unique UV photometry of more than 6000 sources and enable the discovery of the UV emission from the SNR N11L.

Abstract Copyright:

Journal keyword(s): ISM: individual objects: LMC N11 - magellanic clouds - galaxies: star clusters - ultraviolet: stars - X-rays: general

VizieR on-line data: <Available at CDS (J/A+A/418/841): table4.dat>

Nomenclature: Fig.2, Table 2: [NAR2004] NN (Nos 1-37).

CDS comments: HD 268743 cluster = NAME SK -66 41 CLUSTER. Fig.13 : [HRR00] 204,207,211 are [L72] LH 13-204, 207, 211 in SIMBAD.

Simbad objects: 100

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Number of rows : 100
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 XMMU J045349.8-661928 X 04 53 50.090 -66 19 30.45   18.60       ~ 1 0
2 GSC2 S013232036227 X 04 54 04.8356389272 -66 16 53.887631520   18.07       ~ 1 0
3 XMMU J045423.4-663349 X 04 54 23.201 -66 33 46.58   13.80       ~ 1 0
4 2MASS J04542631-6625330 ISM 04 54 26.3092440048 -66 25 33.401780328           ~ 4 0
5 CXOU J045427.4-662518 G 04 54 27.48 -66 25 18.0           ~ 2 1
6 2MASX J04542820-6625275 G 04 54 28.2309415416 -66 25 28.419824064 18.409 15.26 16.871 14.77 15.454 ~ 13 0
7 XMMU J045429.4-661510 X 04 54 29.4 -66 15 10           ~ 1 0
8 2RXP J045431.1-661530 X 04 54 31.1 -66 15 30           ~ 1 0
9 XMMU J045434.2-661537 X 04 54 34.59 -66 15 35.5   20.1       ~ 1 0
10 2XMM J045446.2-662003 Q? 04 54 46.6199046312 -66 20 04.162057836 18.868 19.429 19.092   18.155 ~ 4 0
11 SNR J045447-662528 SNR 04 54 48.00 -66 25 42.0           ~ 109 0
12 [NAR2004] 8 AG? 04 54 49.00 -66 31 20.4           ~ 2 0
13 2RXP J045455.2-663731 X 04 54 54.6 -66 37 31           ~ 2 0
14 XMMU J045454.6-663733 X 04 54 54.88 -66 37 29.7   20.47       ~ 1 0
15 GSC2 S013232019743 X 04 55 01.67 -66 33 48.1   17.99       ~ 2 0
16 GSC2 S013232022208 AG? 04 55 01.86 -66 31 47.2           ~ 2 0
17 CXOU J045501.9-663122 * 04 55 01.8703479408 -66 31 22.374948288   17.60       ~ 2 0
18 2RXP J045502.5-663126 X 04 55 02.5 -66 31 26           ~ 1 0
19 CXOU J045509.2-663018 X 04 55 09.1540061664 -66 30 17.242030440   15.76       ~ 2 0
20 USNO-B1.0 0234-00051275 X 04 55 13.36 -66 32 26.1   15.69       ~ 2 0
21 2RXP J045516.1-663041 X 04 55 15.02 -66 30 39.3           ~ 2 0
22 2RXP J045518.4-661738 AG? 04 55 18.07 -66 17 35.4           ~ 2 0
23 2RXP J045523.9-662232 X 04 55 23.9 -66 22 32           ~ 1 0
24 CXOU J045524.4-662223 AGN 04 55 24.46 -66 22 23.8           ~ 2 0
25 [NAR2004] 18 AG? 04 55 33.84 -66 30 15.2           ~ 2 0
26 HD 268670 SB* 04 55 34.8832195800 -66 15 24.891367104   11.29 10.55     K0 11 0
27 1WGA J0455.6-6626 X 04 55.6 -66 26           ~ 1 0
28 XMMU J045536.4-662526 X 04 55 36.85 -66 25 30.8   20.24       ~ 1 0
29 [NAR2004] 21 AG? 04 55 38.99 -66 25 50.2           ~ 2 0
30 2RXP J045540.5-662958 AGN 04 55 39.7078345224 -66 29 59.357184612           ~ 3 0
31 2RXP J045553.6-661709 X 04 55 53.6 -66 17 09           ~ 1 0
32 [NAR2004] 23 X 04 55 54.75 -66 27 14.7           ~ 2 0
33 CXOU J045554.8-661701 * 04 55 55.1204649312 -66 17 00.955813056           ~ 2 0
34 2RXP J045555.3-661715 X 04 55 55.3 -66 17 15           ~ 1 0
35 1WGA J0456.3-6622 X 04 56.3 -66 22           ~ 1 0
36 [NAR2004] 25 X 04 56 19.49 -66 26 31.0           ~ 2 0
37 PGMW 1052 * 04 56 22.3102142640 -66 28 05.083058244 12.899 13.665 13.764   13.730 B0III 10 0
38 [NAR2004] 26 AGN 04 56 24.56 -66 22 06.7           ~ 2 0
39 [L72] LH 9-73 EB* 04 56 29.5593006240 -66 28 20.980326828 12.994 13.821 14.035   14.247 O7.5V 7 0
40 PGMW 2088 * 04 56 29.58 -66 26 59.9   18.564 18.778     ~ 2 0
41 [NAR2004] 27 X 04 56 29.74 -66 27 02.7           ~ 2 1
42 [L72] LH 9-67 * 04 56 30.9913107552 -66 28 41.271275820 13.188 14.012 14.194   14.443 O9V 8 0
43 [NAR2004] 28 X 04 56 32.32 -66 19 05.4           ~ 2 0
44 [L72] LH 9-66 * 04 56 32.8852861632 -66 28 52.673333772 13.847 14.606 14.775   14.978 B1III 11 0
45 PGMW 1194 * 04 56 34.1980686528 -66 28 52.101759036 13.204 14.046 14.215   14.256 O9.5:IV 3 0
46 DEM L 34 HII 04 56 34.3 -66 26 52           ~ 101 0
47 PGMW 1198 * 04 56 34.45 -66 28 26.8   13.36 13.57     O7.5III 6 0
48 [L72] LH 9-58 * 04 56 34.4566089840 -66 29 21.367887036 12.903 13.888 13.852   13.657 O6::V:p 3 0
49 HD 32228 WR* 04 56 34.666 -66 28 26.34   10.685 10.830     WC4+O9.5II: 93 0
50 PGMW 1208 * 04 56 34.73 -66 28 27.0   13.30 13.39     ~ 6 0
51 PGMW 1212 * 04 56 34.84 -66 28 28.7   14.40 14.66     O8V 6 0
52 [L72] LH 9-57 * 04 56 36.2806033056 -66 29 25.508743800 13.528 14.378 14.501   14.717 O7-O8:V: 3 0
53 USNO-B1.0 0236-00040143 X 04 56 37.489 -66 18 30.11   14.9   16.9   ~ 2 0
54 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 99 0
55 PGMW 1288 * 04 56 39.0892827432 -66 28 54.310807596 14.309 15.111 15.310   15.544 O9V 3 0
56 [L72] LH 9-51 * 04 56 39.3386279568 -66 29 29.309803800 14.699 15.524 15.507   14.847 O9:III: 3 0
57 [L72] LH 9-50 Pu* 04 56 40.6817710632 -66 29 30.750024048 13.563 14.399 14.518   14.665 B0.5:V 3 0
58 [L72] LH 9-53 SB* 04 56 40.9576309608 -66 27 40.090528476 11.925 12.707 12.937   12.654 O9.5III+B1-2: 7 0
59 [L72] LH 9-42 * 04 56 41.9878268016 -66 28 35.951274912 14.641 15.582 15.639   15.248 B1:V 3 0
60 PGMW 3058 Pu* 04 56 42.1339871825 -66 24 54.713617412 12.901 14.092 14.089   13.991 O3V((f*)) 16 0
61 XMMU J045643.0-662504 X 04 56 43.0 -66 25 04           ~ 1 0
62 [HT83] alf mul 04 56 43.231560 -66 25 02.58708 11.057 11.884 11.894 12.518 10.944 O6V 11 0
63 PGMW 3073 * 04 56 43.334 -66 24 54.55 12.895 14.734 13.868   14.181 O6.5V 12 0
64 [L72] LH 9-44 * 04 56 43.5719788032 -66 29 23.296432812 13.909 14.728 14.826   14.963 B0V 3 0
65 [L72] LH 9-41 * 04 56 43.7015625504 -66 28 36.745839912 13.916 14.562 14.840   14.962 B1V 10 0
66 [L72] LH 9-43 * 04 56 44.4919148592 -66 29 05.776709712 14.429 15.218 15.442   15.653 B1:V: 3 0
67 PGMW 3090 * 04 56 44.536 -66 24 56.28 12.522 14.311 13.303   13.764 B0:V 5 0
68 PGMW 1357 * 04 56 44.8632435312 -66 28 15.248815860 14.021 14.799 15.054   15.223 B0V 3 0
69 [L72] LH 9-40 * 04 56 45.3106509624 -66 28 31.330707024 14.179 14.944 15.201   15.419 O9V 3 0
70 XMMU J045646.1-662447 X 04 56 46.1 -66 24 47           ~ 1 0
71 1RXS J045635.6-662819 X 04 56 46.2 -66 28 27           ~ 2 1
72 [L72] LH 9-38 * 04 56 46.7242440792 -66 28 33.524806080 13.786 14.580 14.840   15.017 O8:V 3 0
73 PGMW 3120 * 04 56 46.7984540280 -66 24 46.862515368 11.700 12.496 12.466   12.464 O5.5V((f*)) 29 0
74 XMMU J045648.3-662400 X 04 56 48.22 -66 24 01.0           ~ 2 0
75 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 255 0
76 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 162 3
77 PGMW 3204 * 04 56 58.7897 -66 24 40.710   13.85 14.02     O6.5V((f)) 15 0
78 HD 268721 * 04 56 58.971 -66 24 38.16 11.374 11.935 11.859   11.281 O3III(f*)+OB 21 0
79 CXOU J045706.9-662705 X 04 57 07.3486551024 -66 27 06.948764136           ~ 2 0
80 [NAR2004] 31 X 04 57 28.37 -66 22 32.0           ~ 2 0
81 XMMU J045728.1-663302 X 04 57 28.469 -66 33 00.98           ~ 1 0
82 XMMU J045729.2-662256 X 04 57 29.2 -66 22 56           ~ 1 0
83 XMMU J045732.2-662856 X 04 57 32.2 -66 28 56           ~ 1 0
84 1WGA J0457.7-6627 X 04 57.7 -66 27           ~ 1 0
85 NAME HNT 1 Cl* 04 57 42.936 -66 28 31.26           ~ 5 0
86 2RXP J045744.0-662739 X 04 57 44.0 -66 27 39           ~ 1 0
87 HD 268743 ** 04 57 44.22312 -66 27 40.1724 10.035 11.466 11.541 11.933   ~ 44 0
88 NGC 1769 As* 04 57 44.5 -66 27 42           ~ 70 2
89 2RXP J045744.9-662744 X 04 57 44.9 -66 27 44           ~ 1 0
90 GSC 08889-00537 * 04 57 45.1130385648 -66 27 53.942200884   13.72 13.85     ~ 6 0
91 [ELS2006] N11 099 * 04 57 46.6973130744 -66 28 28.165736352   14.82 14.93     B0.2V 6 0
92 XMMU J045749.2-662726 X 04 57 49.2 -66 27 26           ~ 1 0
93 XMMU J045749.2-662210 X 04 57 49.2 -66 22 10           ~ 1 0
94 NGC 1773 HII 04 58 12.0 -66 21 36           ~ 53 1
95 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17416 0
96 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1187 2
97 [L72] LH 13-204 * ~ ~           O8.5:V 2 0
98 [L72] LH 13-207 * ~ ~           B1-2:V 2 0
99 [W63b] 597 * ~ ~   14.18 14.33     ~ 2 0
100 [L72] LH 13-211 * ~ ~   12.43 12.44     B1V 3 0

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