2010ApJ...715..412Y

Query : 2010ApJ...715..412Y

2010ApJ...715..412Y - Astrophys. J., 715, 412-420 (2010/May-3)

Searching for diffuse nonthermal x-rays from the superbubbles N11 and N51D in the Large Magellanic Cloud.

YAMAGUCHI H., SAWADA M. and BAMBA A.

Abstract (from CDS):

We report on observations of the superbubbles (SBs) N11 and N51D in the Large Magellanic Cloud (LMC) with Suzaku and XMM-Newton. The interior of both SBs exhibits diffuse X-ray emission, which is well represented by thin thermal plasma models with a temperature of 0.2-0.3 keV. The presence of nonthermal emission, claimed in previous works, is much less evident in our careful investigation. The 3σ upper limits of 2-10 keV flux are 3.6x10–14 erg/cm2/s and 4.7x10–14 erg/cm2/s for N11 and N51D, respectively. The previous claims of the detection of nonthermal emission are probably due to the inaccurate estimation of the non-X-ray background. We conclude that no credible nonthermal emission has been detected from the SBs in the LMC, with the exception of 30 Dor C.

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Journal keyword(s): ISM: bubbles - ISM: individual objects (N11, N1D (read: LHA 120-N 51D)) - X-rays: ISM

CDS comments: In keywords, N1D is a misprint for N51D.

Simbad objects: 22

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Number of rows : 22
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 SNR J045447-662528 SNR 04 54 48.00 -66 25 42.0           ~ 111 0
2 DEM L 34 HII 04 56 34.3 -66 26 52           ~ 103 0
3 HD 32228 WR* 04 56 34.666 -66 28 26.34   10.685 10.830     WC4+O9.5II: 96 0
4 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 103 0
5 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 275 0
6 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 169 3
7 HD 268743 ** 04 57 44.22312 -66 27 40.1724 10.035 11.466 11.541 11.933   ~ 44 0
8 NGC 1769 As* 04 57 44.5 -66 27 42           ~ 73 1
9 NGC 1773 HII 04 58 12.0 -66 21 36           ~ 55 1
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
11 LHA 120-N 51D HII 05 25 17.3 -67 22 47           ~ 119 0
12 KMHK 879 As* 05 25 26 -67 28.4     11.75     ~ 39 0
13 HD 36402 WR* 05 26 03.9637892880 -67 29 57.087864096   11.25 11.621 11.65   (WC) 143 0
14 NGC 1955 As* 05 26 12 -67 29.9   8.95 8.87     ~ 66 0
15 NAME LMC 4 Supergiant Shell sh 05 31 33 -66 40.5           ~ 183 0
16 NAME 30 Dor C Rad 05 36 07.70 -69 11 52.6           ~ 87 1
17 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 327 2
18 Cl Westerlund 2 OpC 10 23 58.1 -57 45 49           ~ 400 0
19 Cl Westerlund 1 OpC 16 47 02.4 -45 51 07           ~ 655 1
20 NGC 6334 HII 17 20 53 -36 07.9           ~ 740 0
21 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
22 NAME NEP reg 18 00 00.000 +66 33 38.55           ~ 430 0

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