2005A&A...436..541N

Query : 2005A&A...436..541N

2005A&A...436..541N - Astronomy and Astrophysics, volume 436541-547 (2005/6-3)

Further Wolf-Rayet stars in the starburst cluster Cl Westerlund 1.

NEGUERUELA I. and CLARK J.S.

Abstract (from CDS):

We present new low and intermediate-resolution spectroscopic observations of the Wolf Rayet (WR) star population in the massive starburst cluster Westerlund 1. Finding charts are presented for five new WRs - four WNL and one WCL - raising the current total of known WRs in the cluster to 19. We also present new spectra and correct identifications for the majority of the 14 WR stars previously known, notably confirming the presence of two WNVL stars. Finally we briefly discuss the massive star population of Westerlund 1 in comparison to other massive young galactic clusters.

Abstract Copyright: ∼

Journal keyword(s): stars: Wolf-Rayet - stars: evolution - stars: general - open clusters and associations: individual: Westerlund 1

Nomenclature: Table 2: Cl* Westerlund 1 CN A (Nos O-S) added. Table 2: WR NNa (Nos 77a-77s) added. Table 2, Fig. 2: Cl* Westerlund 1 W NNNa (Nos 14b, 14c, 46a, 57c) added.

Simbad objects: 38

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Number of rows : 38
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 269687 WR* 05 31 25.5247745448 -69 05 38.556251700 10.86 11.78 11.87 12.05   WN11h 122 0
2 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
3 WR 77a WR* 16 46 55.5364791576 -45 51 34.480934408     20.30 17.50 14.70 WN6o 16 0
4 Cl* Westerlund 1 CN N WR* 16 46 59.9151721464 -45 55 25.670942256       16.9 13.0 WC9d 17 0
5 USNO-B1.0 0440-00523458 * 16 47 00.6397501464 -45 56 08.531903616   14.1 13.6     ~ 1 0
6 Cl* Westerlund 1 CN I WR* 16 47 00.8820136008 -45 51 20.517977916       17.336 14.340 WN8o 21 0
7 Cl* Westerlund 1 W 57 s*b 16 47 01.3600091808 -45 51 45.804003408   20.7 16.877 13.83 11.13 B4Ia 22 0
8 WR 77d WR* 16 47 01.5976561900 -45 51 45.244547387           WN7o 16 0
9 Cl* Westerlund 1 W 12 s*y 16 47 02.2214295629 -45 50 58.987616665   22.0 17.575 13.611 10.42 A5Ia+ 27 0
10 Cl Westerlund 1 OpC 16 47 02.4 -45 51 07           ~ 655 1
11 Cl* Westerlund 1 CN J WR* 16 47 02.4735872095 -45 50 59.898935502           WN5h 16 0
12 WR 77f WR* 16 47 02.9772955944 -45 50 19.713734556   21.552 17.792 15.035 12.508 WNL/BIa+ 38 0
13 WR 77g WR* 16 47 03.15 -45 50 43.8     19     WC8 17 0
14 Cl* Westerlund 1 W 42 s*b 16 47 03.2521856424 -45 50 52.195013052         10.764 B9Ia+ 21 0
15 Cl* Westerlund 1 W 7 s*b 16 47 03.6281794392 -45 50 14.365482036   20.0 15.972 12.73 9.99 B5Ia+ 31 0
16 Cl* Westerlund 1 CN V WR* 16 47 03.8075002560 -45 50 38.725374804           WN8o 16 0
17 Cl* Westerlund 1 W 46a s*b 16 47 03.9147803107 -45 51 19.743263385   23.0 18.55 15.537 12.499 B1Ia 18 0
18 WR 77i WR* 16 47 03.9628130472 -45 51 37.672066152     19.79 16.906 13.949 WC9d 18 0
19 Cl* Westerlund 1 CN G WR* 16 47 04.0152346631 -45 51 25.019757928   22.7 20.87 17.75 14.68 WN7o 24 0
20 Cl* Westerlund 1 W 33 s*b 16 47 04.1256274968 -45 50 48.488202564   20.090 15.61 12.803 10.04 B5Ia+ 26 0
21 WR 77k WR* 16 47 04.2072122904 -45 51 07.177760892   22.6 18.86 15.61 12.52 WN7 29 0
22 Cl* Westerlund 1 CN H WR* 16 47 04.2489212873 -45 51 20.211867845           WC9d 17 0
23 Cl* Westerlund 1 CN C WR* 16 47 04.4125871144 -45 51 03.606604135           WC9d 17 0
24 Cl* Westerlund 1 CN F WR* 16 47 05.2114579896 -45 52 24.985725096   21.7 17.86 15.39 12.90 WC9d 33 0
25 Cl* Westerlund 1 CN B WR* 16 47 05.3717585660 -45 51 04.811705369     20.99 17.50 14.37 WN7o 32 0
26 Cl* Westerlund 1 CN R WR* 16 47 05.9726730842 -45 50 23.072495547       17.652 15.223 WN5o 25 0
27 Cl* Westerlund 1 CN E WR* 16 47 06.0667110144 -45 52 08.266249200     18.379 15.675 12.940 WC9 25 0
28 Cl* Westerlund 1 CN D WR* 16 47 06.2554455566 -45 51 26.391243810       18.935 15.600 WN7o 23 0
29 Cl* Westerlund 1 W 243 s*b 16 47 07.5040736160 -45 52 29.123491188   19.873 15.730     LBV 67 0
30 Cl* Westerlund 1 CN O WR* 16 47 07.6630825488 -45 52 35.964833052       16.886 14.047 WN6o 18 0
31 WR 77sc WR* 16 47 08.3538521592 -45 50 45.414739212     19.69 16.59 13.68 WN7b 32 0
32 Cl* Westerlund 1 W 71 s*b 16 47 08.4584673360 -45 50 49.338181284   21.5 17.531 14.158 11.16 B2.5Ia 24 0
33 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
34 GCIRS 13E3N IR 17 45 39.806 -29 00 29.35           ~ 10 1
35 GCIRS 13E3c IR 17 45 39.808 -29 00 29.48           ~ 10 1
36 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
37 NAME Quintuplet Cluster OpC 17 46 13.9 -28 49 48           ~ 561 0
38 Cl* Westerlund 1 W 14b * ~ ~           ~ 1 0

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