2019MNRAS.488.1282W

Query : 2019MNRAS.488.1282W

2019MNRAS.488.1282W - Mon. Not. R. Astron. Soc., 488, 1282-1300 (2019/September-1)

Variable dust emission by WC type Wolf-Rayet stars observed in the NEOWISE-R survey.

WILLIAMS P.M.

Abstract (from CDS):

Photometry at 3.4 and 4.6 µm of 128 Population I WC type Wolf-Rayet stars in the Galaxy and 12 in the Large Magellanic Cloud (LMC) observed in the WISE NEOWISE-R survey was searched for evidence of circumstellar dust emission and its variation. Infrared spectral energy distributions (SEDs) were assembled, making use of archival r, i, Z, and Y photometry to determine reddening and stellar wind levels for the WC stars found in recent IR surveys and lacking optical photometry. From their SEDs, 10 apparently non-variable stars were newly identified as dust makers, including three, WR 102-22, WR 110-10, and WR 124-10, having subtype earlier than WC8-9, the first such stars to show this phenomenon. The 11 stars found to show variable dust emission include six new episodic dust makers, WR 47c, WR 75-11, WR 91-1, WR 122-14, and WR 125-1 in the Galaxy and HD 38030 in the LMC. Of previously known dust makers, NEOWISE-R photometry of WR 19 captured its rise to maximum in 2018 confirming the 10.1-yr period, that of WR 125 the beginning of a new episode of dust formation suggesting a period near 28.3 yr. while that of HD 36402 covered almost a whole period and forced revision of it to 5.1 yr.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

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

VizieR on-line data: <Available at CDS (J/MNRAS/488/1282): table1.dat-table19.dat>

CDS comments: Probable mispirnts: SMG09 807_13 = SMG09 807_16 ([SMG2009] in Simbad); KSF14 1541-187C = [KSF2015] 1541-197C.

Simbad objects: 146

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Number of rows : 146
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 HD 16523 WR* 02 41 11.6753354688 +56 43 49.735070148 10.03 10.025 9.881 9.901   WC6 138 0
2 HD 17638 WR* 02 52 11.6613087600 +56 56 07.131052500 10.99 10.86 10.41     WC6 121 0
3 HD 32257 WR* 04 56 02.8931275728 -69 27 21.546891216 13.441 13.962 14.23 14.31 14.514 WC 56 0
4 HD 32125 WR* 04 56 11.0961328800 -66 17 33.052465428 13.704 14.295 14.33   14.618 WC 58 0
5 HD 32402 WR* 04 57 24.0820685472 -68 23 57.120838692   12.53 12.69 13.24   WC 86 0
6 HD 36156 WR* 05 23 10.0576745256 -71 20 50.843953284 11.732 12.54 12.74 12.97 12.960 WC 46 0
7 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
8 HD 36402 WR* 05 26 03.9637892880 -67 29 57.087864096   11.25 11.621 11.65   (WC) 143 0
9 HD 36521 WR* 05 26 30.2591541144 -68 50 27.500574192   12.156 12.317 12.529   WC4+O6III/V+O 86 0
10 HD 37026 WR* 05 30 12.1637529576 -67 26 08.329055928 12.853 13.16 13.53 13.56 13.856 WC 78 0
11 HD 37248 WR* 05 30 38.703 -71 01 47.80 12.319 12.983 12.99 13.39 13.413 WC4+O9 58 0
12 HD 37680 WR* 05 34 19.2493989720 -69 45 10.295445528 12.807 12.98 13.25 13.21 13.490 WC 81 1
13 HD 38030 WR* 05 36 51.3798360240 -69 25 56.740737144 12.023 12.814 12.986 13.21 13.605 WC 43 0
14 Brey 70 WR* 05 37 29.2519905120 -69 20 47.580754164 12.862 13.975 13.686 14.02 14.140 WR 29 0
15 HD 38448 WR* 05 39 56.1038237112 -69 24 24.256772136 12.073 12.894 12.996 13.42 13.150 WR 51 0
16 HD 63099 WR* 07 45 50.3991805440 -34 19 48.500286780 11.47 11.43 10.50 10.37   WC4+O7 119 0
17 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 951 0
18 Ve 6-15 WR* 08 49 52.9566367968 -45 10 24.005049276   13.83 12.93 12.72   WC6 41 0
19 HD 88500 WR* 10 10 31.9110817968 -60 38 42.419780376   10.84 10.65 10.67   WC5 88 0
20 WR 19 WR* 10 18 04.9885430688 -58 16 26.244521868   14.80 13.85     WC5+O9 74 0
21 HD 92809 WR* 10 41 38.3243333544 -58 46 18.723223308 8.95 9.28 9.03 9.60   WC6 163 0
22 LSWR 4 WR* 10 44 38.0518597224 -58 48 28.806098832   14.95 13.70 13.39   WC6+OB 40 0
23 HD 94305 WR* 10 51 06.0016671120 -62 17 01.650146136   11.69 11.35 11.32   WC6+O7.5V 103 0
24 WR 31c WR* 10 57 42.8623263096 -60 34 00.455665584   17.33 16.37     WC6+OB 10 0
25 HD 95435 WR* 11 00 00.7205444088 -57 48 59.277614904   11.78 11.61 11.67   WC6 60 0
26 * 58 Leo ** 11 00 33.6471432816 +03 37 02.992384200   6.007 4.838     K0.5IIIFe-0.5 170 0
27 LS 2173 WR* 11 07 54.0719507664 -61 27 40.800849552   16.44 14.50 14.29   WC5+OB? 30 0
28 HD 97152 WR* 11 10 04.0797150120 -60 58 44.963276664 7.47 8.03 8.07 8.91   WC7+O7V 190 0
29 WR 44-1 WR* 11 19 43.0260269976 -61 27 12.305862072   13.67 12.35 13.03   WCE 6 0
30 [W65] c18 WR* 11 38 05.0961216840 -62 16 01.900054200   14.985 13.921 13.599   WC6 41 1
31 WR 46-7 WR* 12 10 07.9617168384 -62 44 19.426747272           WC5-7 5 0
32 WR 46-10 WR* 12 13 28.294 -62 41 42.98           WCE 5 0
33 WR 46-11 WR* 12 28 41.9135827224 -63 25 46.107673896   20.28   17.82   WCE 3 0
34 WR 46-13 WR* 12 30 03.8693613552 -62 50 17.139850512       19.20   WC7 5 0
35 WR 47c WR* 12 52 55.6812766440 -63 46 38.018010000           WC5 8 0
36 WR 47-2 WR* 12 55 44.2500012504 -63 35 50.057226924           WC5-6 4 0
37 WR 47-3 WR* 13 03 11.0674770152 -63 42 16.347826707       18.72   WC5-6 4 0
38 WR 48-1 WR* 13 10 12.0788309808 -62 39 06.592257648           WC5 5 0
39 [W74] 48 WR* 13 11 27.7090087224 -63 45 59.859252576   16.65 14.96     ~ 9 0
40 WR 48-3 WR* 13 12 21.3224527736 -62 40 12.387259416       16.24   WC8 10 0
41 WR 48a WR* 13 12 39.6052790136 -62 42 55.939362876       16.081   WC6 106 0
42 CPD-61 3569 WR* 13 18 01.0421567664 -62 26 04.755661116 12.66 12.64 11.88 11.84   WC7+OB 64 0
43 HD 115473 WR* 13 18 27.9941240160 -58 08 13.603221168 9.09 9.68 9.00 9.72   WC5 119 0
44 HD 119078 WR* 13 43 16.3587374232 -67 24 04.973391360 9.11 9.737 9.40 10.08   WC7/8 110 0
45 2MASS J13520236-6226460 WR* 13 52 02.361 -62 26 46.08           WCE 3 0
46 WR 59-2 WR* 13 54 13.4476478952 -61 50 01.825486260           WC5-6 4 0
47 HD 121194 WR* 13 55 48.4481808288 -61 09 48.459624804 14.34 13.65 12.20 12.12 10.31 WC8 42 0
48 WR 60-3 WR* 14 01 15.495 -62 38 19.95           WC7 2 0
49 WR 60-4 WR* 14 04 36.672 -61 29 16.52           WC8 3 0
50 WR 60-2 WR* 14 12 36.5501376144 -61 45 32.764222800           WC8 3 0
51 WR 61-3 WR* 14 20 30.7511294448 -60 48 22.187855520           WC9 4 0
52 WR 64 WR* 14 56 55.1950350600 -55 50 58.552425204   15.11 15.08     WC6.5 24 0
53 WRAY 15-1297 WR* 15 13 41.7103828152 -59 11 44.976787404 16.25 15.58 13.65 13.11   WC9d+OB? 62 0
54 WRAY 16-172 WR* 15 18 20.7584521536 -59 38 17.324150928 14.83 14.52 13.28 12.99   WC7 51 2
55 HD 137603 WR* 15 29 44.6912765040 -58 34 51.250066032 10.98 10.95 9.71 9.78   WC9+OB 115 0
56 WR 70-3 WR* 15 43 04.681 -55 11 12.35   19.93 17.31 16.06   WC8 3 0
57 2MASS J16002326-5251423 WR* 16 00 23.265 -52 51 42.32           WC8 2 0
58 WR 70-12 WR* 16 00 26.4262473288 -52 11 09.986198280       19.70   WC7 6 0
59 WR 72-3 WR* 16 10 06.251 -50 47 58.56           WC9 3 0
60 WR 72-4 WR* 16 10 06.660 -51 47 24.65           WC7 4 0
61 WR 72-1 WR* 16 11 39.2687733672 -52 05 45.818338164           WC9 4 0
62 WR 72-2 WR* 16 11 43.7067372336 -51 10 16.544233164       18.53   WC8 4 0
63 2MASS J16143723-5126263 WR* 16 14 37.237 -51 26 26.33           WC8 4 0
64 2MASS J16242269-4900424 WR* 16 24 22.69440 -49 00 42.4332           WC6 2 0
65 WR 75-1 WR* 16 24 58.8772988856 -48 56 52.406554920           WC8 4 0
66 WR 75aa WR* 16 26 20.1531685464 -45 59 45.714332076       16.041 14.035 WC9d 6 0
67 WRAY 15-1478 WR* 16 26 37.2301537344 -50 19 22.928419884     14.50     WC9 8 0
68 2MASS J16274239-4830341 WR* 16 27 42.391 -48 30 34.13           WC8-9 2 0
69 EM* VRMF 36 WR* 16 28 17.232 -48 17 40.78   17.97 15.37 14.87   WC9 10 0
70 WR 75-15 WR* 16 28 40.260 -48 18 12.95           WC8 3 0
71 WR 75-16 WR* 16 29 35.838 -48 19 34.20           WC8 3 0
72 2MASS J16312923-4756164 WR* 16 31 29.234 -47 56 16.40           WC8 3 0
73 2MASS J16314906-4756044 WR* 16 31 49.062 -47 56 04.47           WC8 3 0
74 2MASS J16322205-4747425 WR* 16 32 22.051 -47 47 42.60           WC9 2 0
75 2MASS J16324979-4744314 WR* 16 32 49.794 -47 44 31.41           WC7 2 0
76 WR 75c WR* 16 34 03.5829153744 -43 40 24.818581704         13.026 WC9 8 0
77 WR 75d WR* 16 34 17.4462409272 -46 08 52.981710792         12.30 WC9 5 0
78 WR 75-11 WR* 16 35 05.5493491560 -47 17 13.672808556           WC9d? 4 0
79 WR 75-5 WR* 16 35 23.317 -48 09 18.09           WC8 5 0
80 WR 75-23 WR* 16 37 23.9879881200 -46 26 28.714095708   17.78 15.29 13.31   WC9 3 0
81 2MASS J16382019-4623435 WR* 16 38 20.197 -46 23 43.57           WC8 2 0
82 WR 76-10 WR* 16 40 17.113 -46 20 09.88           WC7 4 0
83 MR 62 WR* 16 41 19.2544733688 -48 01 59.103204780 14.13 13.53 12.58 13.03   WC8+OB 47 0
84 WR 77t WR* 16 50 57.6345587232 -43 40 27.741198396         13.00 WC9d 5 0
85 MR 66 WR* 17 02 40.3826152512 -45 59 15.453237084   13.62 12.07 11.77   WC9 67 0
86 WR 82-2 WR* 17 07 23.9526991704 -39 19 54.344065224           WC9 4 0
87 2MASS J17112850-3913168 WR* 17 11 28.502 -39 13 16.88           WC8 4 0
88 [SFZ2012] 1189-110L WR* 17 14 09.5548606632 -38 11 20.954987340           WC9 2 0
89 WR 91-1 WR* 17 22 40.741 -35 04 52.95           WC8 3 0
90 HD 157451 WR* 17 25 23.2779945960 -43 29 31.469964540 10 10.59 10.20 10.46   WC9 96 0
91 2MASS J17333321-3236165 WR* 17 33 33.218 -32 36 16.57           WC9 2 0
92 WR 98a WR* 17 41 13.0411858104 -30 32 30.409373688   18.40   15.20 13.82 WC8/9 112 1
93 [SFZ2012] 1269-166L WR* 17 41 13.5147301056 -30 03 41.006696544           WC8 2 0
94 WR 101 WR* 17 45 09.0032919288 -31 50 15.863119584   17.9 14.60     WC8 36 1
95 WR 102-22 WR* 17 59 02.3397287064 -24 17 00.031002468           WC7 3 0
96 MR 80 WR* 18 02 04.1244400656 -23 37 42.168277056   15.002 13.155 12.056   WC9 241 1
97 WR 111-3 WR* 18 13 42.4747192968 -17 28 12.241360344       20.02   WC8 4 0
98 WR 111-10 WR* 18 14 14.1081961128 -17 21 02.786880708       20.74   WC7 3 0
99 THA 34-30 WR* 18 14 32.9800031088 -18 25 14.715560424       14.38   WC9 4 0
100 2MASS J18160236-1653593 WR* 18 16 02.363 -16 53 59.37           WC8 2 0
101 WR 112 WR* 18 16 33.4909366272 -18 58 42.341845368   20.7 17.7     WC8+O6/7III/V 143 0
102 WR 113-2 WR* 18 23 03.428 -13 10 00.40   15.23 14.49 14.41   WC5-6 4 0
103 WR 118-4 WR* 18 33 47.6338742592 -09 23 07.803860388           WC8 6 0
104 2MASS J18380047-0626462 WR* 18 38 00.479 -06 26 46.23           WC9 2 0
105 WR 119-2 WR* 18 39 34.581 -05 44 23.08   18.36   16.96   WC8 4 0
106 2MASS J18394064-0535182 WR* 18 39 40.646 -05 35 18.23           WC8-9 2 0
107 WR 120-16 WR* 18 41 06.812 -02 56 01.10           WC8 3 0
108 WR 120-1 WR* 18 41 10.7006294520 -04 51 26.982015660           WC9 7 0
109 WR 120-11 WR* 18 41 23.348 -05 40 58.39   17.97 17.39 16.16   WC8 4 0
110 WR 120-5 WR* 18 42 08.4722714736 -03 49 35.208831396           WC8 4 0
111 2MASS J18422216-0305396 WR* 18 42 22.168 -03 05 39.61           WC8 2 0
112 2MASS J18422661-0356359 WR* 18 42 26.6736792192 -03 56 35.526500880           WC9 2 0
113 WR 120-15 WR* 18 43 17.2362039696 -03 08 56.604652836           WC8 3 0
114 2MASS J18433964-0229361 WR* 18 43 39.647 -02 29 36.17           WC9 2 0
115 2MASS J18473833-0206389 WR* 18 47 38.330 -02 06 38.91           WC8 3 0
116 WR 121-4 WR* 18 49 32.305 -02 24 27.08           WC7 3 0
117 2MASS J18500275-0032080 WR* 18 50 02.756 -00 32 08.04           WC8 3 0
118 2MASS J18503755-0001210 WR* 18 50 37.558 -00 01 21.03           WC8 2 0
119 WR 122-14 WR* 18 53 02.552 +01 10 22.80           WC8 4 0
120 2MASS J18554442+0136440 WR* 18 55 44.426 +01 36 44.08           WC8 2 0
121 2MASS J18560203+0136329 WR* 18 56 02.031 +01 36 32.96           WC7 2 0
122 2MASS J18560791+0220490 WR* 18 56 07.915 +02 20 49.01           WC7 3 0
123 IPHAS J190015.86+000517.3 WR* 19 00 15.8650650720 +00 05 17.355372828           WC8 3 0
124 [SFZ2012] 1603-75L WR* 19 04 33.1610081880 +06 05 28.500909936           WC8 2 0
125 CXO J191011.5+085839 WR* 19 10 11.530 +08 58 39.62           WC7 3 0
126 2MASS J19155252+1112596 WR* 19 15 52.523 +11 12 59.66           WC8: 2 0
127 WR 124-3 WR* 19 16 18.3850670280 +12 46 49.381771044           WC7 4 0
128 WR 124-9 WR* 19 17 32.8048675392 +14 08 28.038774408       19.93   WC6 4 0
129 WR 124-10 WR* 19 18 31.705 +13 43 17.84           WC6 3 0
130 WR 124-19 WR* 19 20 02.4676257192 +12 08 20.321607840           WC6: 3 0
131 WR 124-5 WR* 19 20 29.320 +14 12 06.11           WC-06-d? 3 0
132 WR 124-2 WR* 19 20 40.3933929552 +13 50 35.196042696           WC8 4 0
133 WR 124-6 WR* 19 22 53.6083394876 +14 08 49.915260202           WC7 6 0
134 WR 124-7 WR* 19 22 54.4553566248 +14 11 28.004137008           WC8 5 0
135 WR 124-20 WR* 19 25 18.115 +17 02 15.93           WC9 4 0
136 WR 124-22 WR* 19 27 17.9842492488 +16 05 24.602457156           WC9 4 0
137 MR 93 WR* 19 28 15.6142522320 +19 33 21.527693100   14.83       WC7+O9(III) 114 0
138 WR 125-1 WR* 19 33 44.0086605912 +19 22 47.486175672           WC8 5 0
139 HD 190002 WR* 20 01 39.7320392256 +32 34 17.996341908 13.83 13.42 12.67     WC7 69 0
140 HD 192103 WR* 20 11 53.5274337792 +36 11 50.525765304 7.77 8.13 8.11     WC8+OB: 339 0
141 HD 192641 WR* 20 14 31.7666855880 +36 39 39.598210224 7.80 8.20 7.91     WC7pd+O9V 347 0
142 HD 193793 WR* 20 20 27.9757908696 +43 51 16.286840244 6.90 7.25 6.85 4.58   WC7pd+O5.5fc 754 0
143 HD 195177 WR* 20 28 22.6636321896 +38 37 18.977440692 13.42 12.67 11.46     WC4+Be 91 0
144 MR 110 WR* 20 32 03.0201049320 +41 15 20.499732216   15.99 13.97     WC5 85 0
145 WR 150 WR* 21 50 05.5725399960 +50 42 24.715501200   14.00 13.47     WC5 33 0
146 HD 213049 WR* 22 27 17.8187635824 +56 15 11.770681752   11.270 10.928 10.922   WC6 93 0

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