2005MNRAS.363..857H

Query : 2005MNRAS.363..857H

2005MNRAS.363..857H - Mon. Not. R. Astron. Soc., 363, 857-866 (2005/November-1)

Five WC9 stars discovered in the AAO/UKST Hα survey.

HOPEWELL E.C., BARLOW M.J., DREW J.E., UNRUH Y.C., PARKER Q.A., PIERCE M.J., CROWTHER P.A., KNIGGE C., PHILLIPPS S. and ZIJLSTRA A.A.

Abstract (from CDS):

We report the discovery of five massive Wolf-Rayet (WR) stars resulting from a programme of follow-up spectroscopy of candidate emission-line stars in the Anglo-Australian Observatory United Kingdom Schmidt Telescope (AAO/UKST) Southern Galactic Plane Hα survey. The 6195-6775 Åspectra of the stars are presented and discussed. A WC9 class is assigned to all five stars through comparison of their spectra with those of known late-type WC stars, bringing the known total number of Galactic WC9 stars to 44. Whilst three of the five WC9 stars exhibit near-infrared (NIR) excesses characteristic of hot dust emission (as seen in the great majority of known WC9 stars), we find that two of the stars show no discernible evidence of such excesses. This increases the number of known WC9 stars without NIR excesses to seven. Reddenings and distances for all five stars are estimated.

Abstract Copyright: 2005 RAS

Journal keyword(s): surveys - circumstellar matter - stars: Wolf-Rayet - Galaxy: stellar content

Simbad objects: 25

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Number of rows : 25
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11149 1
2 Brey 3a WR* 04 53 30.0791072664 -69 17 49.385662368 13.000 14.398 14.267 14.79 12.791 WC9 38 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
4 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2573 2
5 WRAY 15-1297 WR* 15 13 41.7103828152 -59 11 44.976787404 16.25 15.58 13.65 13.11   WC9d+OB? 61 0
6 WRAY 16-206 WR* 16 12 37.4736952008 -46 37 36.877616436   16.49 15.57     WC9 29 1
7 WR 75aa WR* 16 26 20.1531685464 -45 59 45.714332076       16.041 14.035 WC9d 6 0
8 WRAY 15-1478 WR* 16 26 37.2301537344 -50 19 22.928419884     14.50     WC9 8 0
9 EM* VRMF 36 WR* 16 28 17.232 -48 17 40.78   17.97 15.37 14.87   WC9 10 0
10 WR 75c WR* 16 34 03.5829153744 -43 40 24.818581704         13.026 WC9 8 0
11 WR 75d WR* 16 34 17.4462409272 -46 08 52.981710792         12.30 WC9 5 0
12 WR 77aa WR* 16 46 46.2846745152 -45 47 58.260872472       15.516 13.063 WC9d 15 0
13 Cl Westerlund 1 Cl* 16 47 02.4 -45 51 07           ~ 566 0
14 WR 77t WR* 16 50 57.6345587232 -43 40 27.741198396         13.00 WC9d 5 0
15 MR 66 WR* 17 02 40.3826152512 -45 59 15.453237084   13.62 12.07 11.77   WC9 64 0
16 CPD-33 4347 WR* 17 18 49.7249262168 -33 57 41.388161760   13.93 12.56 12.21   WN8/WC9 66 0
17 HD 156385 WR* 17 19 29.9012420376 -45 38 23.874269568 6.55 6.97 6.92 8.11   WC7 164 0
18 HD 157451 WR* 17 25 23.2779945960 -43 29 31.469964540 10 10.59 10.20 10.46   WC9 92 0
19 WR 93b WR* 17 32 03.3086687328 -35 04 32.620100844           WO3 19 0
20 MR 74 WR* 17 36 19.8953017656 -33 26 12.271864344 16.01 14.87 13.18 12.99   WC9 90 1
21 HD 164270 WR* 18 01 43.1453595672 -32 42 55.161329040 8.52 8.97 8.74 9.51   WC9d+? 225 0
22 MR 80 WR* 18 02 04.1244400656 -23 37 42.168277056   15.002 13.155 12.056   WC9 229 1
23 THA 20-1 WR* 18 39 17.9035317744 -10 05 30.898013928   13.07 12.43     WC9d 58 0
24 HD 183143 s*b 19 27 26.5636061496 +18 17 45.193019136 8.25 8.08 6.86 5.74 4.79 B7Iae 444 0
25 HD 192103 WR* 20 11 53.5274337792 +36 11 50.525765304 7.77 8.13 8.11     WC8+OB: 332 0

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