2009AJ....138..402S

Query : 2009AJ....138..402S

2009AJ....138..402S - Astron. J., 138, 402-420 (2009/August-0)

A near-infrared survey of the inner galactic plane for Wolf-Rayet stars. I. Methods and first results: 41 new WR stars.

SHARA M.M., MOFFAT A.F.J., GERKE J., ZUREK D., STANONIK K., DOYON R., ARTIGAU E., DRISSEN L. and VILLAR-SBAFFI A.

Abstract (from CDS):

The discovery of new Wolf-Rayet (WR) stars in our Galaxy via large-scale narrowband optical surveys has been severely limited by dust extinction. Recent improvements in infrared technology have made narrowband-broadband imaging surveys viable again. We report a new J, K, and narrowband imaging survey of 300 deg2 of the plane of the Galaxy, spanning 150 degrees in Galactic longitude and reaching 1 degree above and below the Galactic plane. The survey has a useful limiting magnitude of K = 15 over most of the observed Galactic plane, and K = 14 within a few degrees of the Galactic center. Thousands of emission line candidates have been detected. In spectrographic follow-ups of 173 WR star candidates we have discovered 41 new WR stars, 15 of type WN and 26 of type WC. Star subtype assignments have been confirmed with K-band spectra, and distances approximated using the method of spectroscopic parallax. A few of the new WR stars are among the most distant known in our Galaxy. The distribution of these new WR stars is seen to follow that of previously known WR stars along the spiral arms of the Galaxy. Tentative radial velocities were also measured for most of the new WR stars.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: disk - Galaxy: stellar content - stars: emission-line, Be - stars: Wolf-Rayet - surveys

Nomenclature: Table 2: [SMG2009] FFFF-NNa N=41.

Simbad objects: 86

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Number of rows : 86
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 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1787 1
2 WR 17-1 WR* 10 16 26.2188695184 -57 28 05.775794220       17.46   WN5b 2 0
3 HD 89358 WR* 10 17 02.2743231360 -57 54 46.875258324 11.1 11.19 10.83 10.59   WN4-s 174 1
4 WR 19 WR* 10 18 04.9885430688 -58 16 26.244521868   14.80 13.85     WC5+O9 68 0
5 WR 19a WR* 10 18 53.3908707768 -58 07 52.973160852     14.2     WN7 14 0
6 THA 35-II-42 WR* 10 25 56.5024585224 -57 48 43.519215708   14.168 12.661 12.102   WN5ha/O3+O3Vz((f*)) 95 0
7 HD 92809 WR* 10 41 38.3243333544 -58 46 18.723223308 8.95 9.28 9.03 9.60   WC6 156 0
8 [MS70] 1 WR* 10 44 32.1161133312 -57 50 23.983274544   14.71 13.54 13.26   WN5 40 0
9 LSWR 4 WR* 10 44 38.0518597224 -58 48 28.806098832   14.95 13.70 13.39   WC6+OB 39 0
10 WR 28 WR* 10 48 58.7233875624 -59 03 37.305467496   13.70 12.98     WN6(h)-w 32 0
11 HD 94546 WR* 10 53 44.8179035891 -59 30 46.684250766 10.38 10.94 10.51 10.48   WN4+O8V 122 0
12 WR 31c WR* 10 57 42.8623263096 -60 34 00.455665584   17.33 16.37     WC6+OB 10 0
13 WR 32 WR* 10 59 52.9184180784 -59 52 43.399136676   15.96 14.70 14.79 13.34 WC5+OB? 21 0
14 WR 35a WR* 11 00 24.3374584656 -59 59 35.646240120   14.78 13.92 13.10 11.83 WN6h 14 0
15 SMSP 6 WR* 11 01 02.0908384608 -60 14 01.029637428 15.52 15.23 14.19     WN4b 17 0
16 WR 36 WR* 11 02 32.9786756376 -59 26 20.909947272   13.90 12.94 12.86   WN5-s 35 0
17 [MS70] 8 WR* 11 05 46.42920 -61 13 48.7524     14.66 14.713   WC4 41 0
18 WR 38a WR* 11 05 48.9639107880 -61 13 41.352428748 16.33 16.27 15.12     WN5o 15 0
19 WR 38b WR* 11 06 18.5765821320 -61 14 13.746272892   17.71 16.21     WC7+OB 11 0
20 WR 39 WR* 11 06 18.7294130136 -61 14 18.439964196   14.33 13.05 13.15   WC7 44 0
21 LS 2173 WR* 11 07 54.0719507664 -61 27 40.800849552   16.44 14.50 14.29   WC5+OB? 27 0
22 HD 97152 WR* 11 10 04.0797150120 -60 58 44.963276664 7.47 8.03 8.07 8.91   WC7+O7V 183 0
23 WR 42c WR* 11 14 01.4808254568 -61 03 47.709141876   17.92 16.56     WN5o 13 0
24 WR 42d WR* 11 14 38.64 -61 11 16.3   16.61 15.28     WN5b 15 0
25 WR 43-1 WR* 11 16 03.536 -61 26 58.34   16.76 16.82 15.97   WN4b 2 0
26 SMSP 13 WR* 11 18 43.1004271704 -61 26 35.869996464   17.75 16.20 15.81   WN5b 11 1
27 WR 44-1 WR* 11 19 43.0260269976 -61 27 12.305862072   13.67 12.35 13.03   WCE 4 0
28 WR 45-2 WR* 11 46 06.6557719248 -62 47 12.692912064   15.56 17.17 14.11   WN5 2 0
29 WR 45a WR* 11 46 18.1512566088 -61 24 41.539355172           WN5o 6 0
30 WR 45b WR* 11 48 46.0326730008 -62 23 02.658292656           WN5b 5 0
31 WR 45-3 WR* 11 50 04.2429210504 -62 52 15.432089340   18.23   16.47   WN6 2 0
32 WR 45-4 WR* 11 55 52.1112690000 -62 45 02.317759092   18.38   14.94   WN6 3 0
33 WR 46-10 WR* 12 13 28.294 -62 41 42.98           WCE 4 0
34 WR 46-11 WR* 12 28 41.9135827224 -63 25 46.107673896   20.28   17.82   WCE 3 0
35 WR 46-12 WR* 12 28 50.9895788232 -63 17 00.121532496       18.61   WN5 3 0
36 WR 46-13 WR* 12 30 03.8693613552 -62 50 17.139850512       19.20   WC7 3 0
37 WR 46-14 WR* 12 38 18.7648691664 -63 24 19.652765184       18.43   WN5b 3 0
38 HD 311884 WR* 12 43 50.9991209208 -63 05 14.812489320 11.45 11.64 10.81 10.59   WN6+O5V 170 0
39 WR 47b WR* 12 48 07.6168964592 -63 38 39.807579048           WN9h 7 0
40 WR 47c WR* 12 52 55.6812766440 -63 46 38.018010000           WC5 8 0
41 WR 47-2 WR* 12 55 44.2500012504 -63 35 50.057226924           WC5-6 4 0
42 WR 47-3 WR* 13 03 11.0674770152 -63 42 16.347826707       18.72   WC5-6 4 0
43 2MASS J13045008-6304402 WR* 13 04 50.089 -63 04 40.21           WC5-6 1 0
44 [W74] 48 WR* 13 11 27.7090087224 -63 45 59.859252576   16.65 14.96     ~ 9 0
45 WR 48-3 WR* 13 12 21.3224527736 -62 40 12.387259416       16.24   WC8 9 0
46 WR 48-4 WR* 13 12 27.6647992104 -62 44 22.020615888       17.95   WC7 7 0
47 WR 48-5 WR* 13 12 45.3447514608 -63 05 51.998871768           WN6 4 0
48 V* WX Cen WR* 13 12 52.3764011184 -63 23 45.851196156   13.80 13.40     WN3h+WC4 50 0
49 CPD-61 3569 WR* 13 18 01.0421567664 -62 26 04.755661116 12.66 12.64 11.88 11.84   WC7+OB 62 0
50 MR 45 WR* 13 18 23.3593835760 -62 28 21.220535604   15.53 14.32 13.97   WN4-w 47 0
51 2MASS J13221608-6230574 WR* 13 22 16.082 -62 30 57.45           WN6 1 0
52 WR 52-2 WR* 13 28 15.8824817256 -62 06 23.541803712       18.70   WN6 3 0
53 HD 117688 WR* 13 33 30.1197052368 -62 19 01.214335740 8.69 10.81 10.90 10.44   WN7 130 0
54 2MASS J13520236-6226460 WR* 13 52 02.361 -62 26 46.08           WCE 2 0
55 WR 59-2 WR* 13 54 13.4476478952 -61 50 01.825486260           WC5-6 3 0
56 2MASS J14101001-6115255 WR* 14 10 10.015 -61 15 25.59           WC8 1 0
57 WR 60-2 WR* 14 12 36.5501376144 -61 45 32.764222800           WC8 3 0
58 2MASS J14162737-6117562 WR* 14 16 27.3513691464 -61 17 56.343879168           WN5b 1 0
59 WR 62a WR* 14 32 37.6995368616 -61 29 54.128039280   14.491 13.056 12.687 11.147 WN5+O5.5/6 9 0
60 2MASS J15013011-5916120 WR* 15 01 30.119 -59 16 12.06           WN4b 1 0
61 WR 68-1 WR* 15 20 35.9230191504 -57 27 11.952723168           WN4b 2 0
62 WR 70-3 WR* 15 43 04.681 -55 11 12.35   19.93 17.31 16.06   WC8 3 0
63 WR 72-2 WR* 16 11 43.7067372336 -51 10 16.544233164       18.53   WC8 4 0
64 2MASS J16143723-5126263 WR* 16 14 37.237 -51 26 26.33           WC8 4 0
65 WR 74 WR* 16 16 13.7935305271 -51 36 41.786124295   15.53 14.01     WN7 29 0
66 WR 75-1 WR* 16 24 58.8772988856 -48 56 52.406554920           WC8 4 0
67 2MASS J16312923-4756164 WR* 16 31 29.234 -47 56 16.40           WC8 3 0
68 2MASS J16314906-4756044 WR* 16 31 49.062 -47 56 04.47           WC8 3 0
69 2MASS J16321298-4750358 WR* 16 32 12.986 -47 50 35.88           WN5b 4 0
70 WR 75-5 WR* 16 35 23.317 -48 09 18.09           WC8 4 0
71 THA 31-1 WR* 17 11 21.7008844704 -39 53 21.976096632   14.18 13.01 12.54   WN7 41 0
72 WR 91-1 WR* 17 22 40.741 -35 04 52.95           WC8 3 0
73 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14393 0
74 SS73 123 WR* 18 04 46.0978039968 -21 51 27.175412880   15.00 13.51 12.80 11.35 WN8 31 0
75 HD 313846 WR* 18 05 25.7344895280 -23 00 20.334949992 10.48 10.69 9.89 9.89   WN9h+OB 135 0
76 HD 165763 WR* 18 08 28.4692108104 -21 15 11.183076540 7.16 7.54 7.82 8.55   WC6 281 0
77 WR 111-3 WR* 18 13 42.4747192968 -17 28 12.241360344       20.02   WC8 4 0
78 WR 113-2 WR* 18 23 03.428 -13 10 00.40   15.23 14.49 14.41   WC5-6 4 0
79 WR 116-2 WR* 18 29 33.8452425600 -08 39 02.072815920           WN5 2 0
80 2MASS J18414845-0400129 WR* 18 41 48.459 -04 00 12.93           WC7 2 0
81 [SMG2009] 1613-21 WR* 19 06 36.5447371320 +07 29 52.381603644           WCE 2 0
82 WR 124-2 WR* 19 20 40.3933929552 +13 50 35.196042696           WC8 4 0
83 HD 195177 WR* 20 28 22.6636321896 +38 37 18.977440692 13.42 12.67 11.46     WC4+Be 88 0
84 MR 112 WR* 20 35 47.0859278605 +41 22 44.703520146     12.64 12.16   WC6+O8I-IIf 155 1
85 WR 150 WR* 21 50 05.5725399960 +50 42 24.715501200   14.00 13.47     WC5 32 0
86 NAME Local Group GrG ~ ~           ~ 8382 0

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