2015A&A...578A..66T

Query : 2015A&A...578A..66T

2015A&A...578A..66T - Astronomy and Astrophysics, volume 578A66-66 (2015/6-1)

WISE morphological study of Wolf-Rayet nebulae.

TOALA J.A., GUERRERO M.A., RAMOS-LARIOS G. and GUZMAN V.

Abstract (from CDS):

We present a morphological study of nebulae around Wolf-Rayet (WR) stars using archival narrow-band optical and Wide-field Infrared Survey Explorer (WISE) infrared images. The comparison among WISE images in different bands and optical images proves to be a very efficient procedure to identify the nebular emission from WR nebulae, and to disentangle it from that of the ISM material along the line of sight. In particular, WR nebulae are clearly detected in the WISE W4 band at 22 µm. Analysis of available mid-IR Spitzer spectra shows that the emission in this band is dominated by thermal emission from dust spatially coincident with the thin nebular shell or most likely with the leading edge of the nebula. The WR nebulae in our sample present different morphologies that we classified into well defined WR bubbles (bubble B-type nebulae), clumpy and/or disrupted shells (clumpy/disrupted C-type nebulae), and material mixed with the diffuse medium (mixed M-type nebulae). The variety of morphologies presented by WR nebulae shows a loose correlation with the central star spectral type, implying that the nebular and stellar evolutions are not simple and may proceed according to different sequences and time-lapses. We report the discovery of an obscured shell around WR35 only detected in the infrared.

Abstract Copyright: ∼

Journal keyword(s): stars: massive - stars: Wolf-Rayet - stars: winds, outflows - ISM: bubbles

Simbad objects: 50

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Number of rows : 50
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
2 HD 50896 WR* 06 54 13.0439608392 -23 55 42.023319852 5.74 6.63 6.91 7.74   WN4b 794 0
3 HD 56925 WR* 07 18 29.1311435688 -13 13 01.513932528 11.21 11.74 11.56 11.40   WN4b 181 0
4 NGC 2359 HII 07 18 30.000 -13 13 36.00           ~ 170 0
5 HD 62910 WR* 07 44 58.2217347768 -31 54 29.554957188 10.08 10.44 10.10 10.17   WN6/WC4 134 0
6 HD 86161 WR* 09 54 52.9033957968 -57 43 38.274644604 7.94 8.65 8.36 8.93   WN8h 230 0
7 NGC 3199 HII 10 16 32.8 -57 56 02           ~ 70 1
8 HD 89358 WR* 10 17 02.2743231360 -57 54 46.875258324 11.1 11.19 10.83 10.59   WN4-s 181 1
9 HD 92740 WR* 10 41 17.5158425712 -59 40 36.895992960 5.68 6.50 6.42 7.38   WN7h+O9III-V 426 0
10 HD 92809 WR* 10 41 38.3243333544 -58 46 18.723223308 8.95 9.28 9.03 9.60   WC6 163 0
11 HD 94305 WR* 10 51 06.0016671120 -62 17 01.650146136   11.69 11.35 11.32   WC6+O7.5V 103 0
12 WRAY 15-682 WR* 10 53 59.5777329720 -60 26 44.361095316   11.64 10.85 10.56   WN11h 155 3
13 WR 35 WR* 11 00 21.8549644416 -61 13 52.417245540   14.460 13.574 13.453   WN6h-w 36 0
14 SMSP 6 WR* 11 01 02.0908384608 -60 14 01.029637428 15.52 15.23 14.19     WN4b 18 0
15 [MS70] 8 WR* 11 05 46.42920 -61 13 48.7524     14.66 14.713   WC4 41 0
16 HD 96548 WR* 11 06 17.2032351624 -65 30 35.241182028 7.10 7.80 7.70 8.49   WN8h 427 0
17 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
18 HD 115473 WR* 13 18 27.9941240160 -58 08 13.603221168 9.09 9.68 9.00 9.72   WC5 119 0
19 MR 48 WR* 13 32 43.7633368296 -65 01 27.837319620 12.85 13.20 12.73 12.61   WN5-w 56 0
20 HD 117688 WR* 13 33 30.1197052368 -62 19 01.214335740 8.69 10.81 10.90 10.44   WN7 134 0
21 RCW 78 HII 13 33.9 -62 15           ~ 27 0
22 GAL 320.5-01.4 HII 15 16 -59.2           ~ 3 0
23 WRAY 16-172 WR* 15 18 20.7584521536 -59 38 17.324150928 14.83 14.52 13.28 12.99   WC7 51 2
24 [RAA2005] G332.783-1.445 HII 16 24.0 -51 31           ~ 44 0
25 HD 147419 WR* 16 24 26.2279587024 -51 32 06.061114140   11.46 10.50 10.74   WN6-s 114 0
26 HD 148937 SB* 16 33 52.3869185520 -48 06 40.476418740 6.49 7.12 6.71 7.61   O6f?p 417 1
27 RCW 118 HII 17 13.5 -39 51           ~ 5 0
28 LS 3982 WR* 17 14 27.1191622584 -39 45 47.051105904 10.63 10.95 10.41     WN6h-w 73 0
29 GRS G352.50 +02.10 HII 17 17.5 -34 09           ~ 8 0
30 HD 156327 WR* 17 18 23.0613730 -34 24 30.630847 9.88 9.95 9.32 9.67   WC7+B0III 124 0
31 BFS 65 HII 17 20 06.91 -38 57 34.1           ~ 81 1
32 WR 91 WR* 17 20 22.0229832912 -38 56 48.381120240   17.70 16.2     WN7 36 0
33 NGC 6357 OpC 17 24 44 -34 12.2           ~ 303 0
34 HD 157504 WR* 17 25 08.8532916336 -34 11 12.498318168 12.80 12.10 10.68 10.39 11.546 WC7+O7-9 121 0
35 HD 158860 WR* 17 33 07.0670597184 -33 38 23.495487072   12.20 10.69 10.38   WN5-w 54 0
36 MR 74 WR* 17 36 19.8953017656 -33 26 12.271864344 16.01 14.87 13.18 12.99   WC9 93 1
37 WR 101 WR* 17 45 09.0032919288 -31 50 15.863119584   17.9 14.60     WC8 36 1
38 V* V3893 Sgr WR* 17 45 47.5405102320 -26 10 26.779355616   15.13 14.20 14.23   WR 126 1
39 HD 168206 WR* 18 19 07.3629298440 -11 37 59.164994424 9.65 9.88 9.10     WC8+O8/9III/V 308 1
40 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
41 RCW 167 HII 18 21 -11.9           ~ 6 0
42 EM* AS 306 WR* 18 27 04.2926310240 -12 22 52.676112720   14.79       WN8h 51 0
43 WR 120bb WR* 18 42 06.3107571528 -03 48 22.455821448           WN8-9h 10 0
44 WR 120bc WR* 18 42 08.2722647232 -03 51 02.889515988           WN8-9h 15 0
45 WR 121b WR* 18 49 27.3400967648 -01 04 20.678311792   18.31 17.15 14.05 13.60 WN7h 9 0
46 Hen 2-427 WR* 19 11 30.8749167768 +16 51 38.200938264   12.19 11.50     WN8h 350 0
47 HD 187282 WR* 19 48 32.1967360032 +18 12 03.695582124 9.60 10.49 10.51     WN4(h)-w 202 0
48 MR 97 WR* 20 00 19.1223016752 +33 15 51.099973956 12.93 13.050 12.080     WN7h 84 0
49 HD 191765 WR* 20 10 14.1928045152 +36 10 35.070683376 7.64 8.08 8.08     WN6-s 452 0
50 HD 192163 WR* 20 12 06.5418877464 +38 21 17.784181008 7.12 7.49 7.50     WN6(h)-s 715 1

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