2004ApJ...607..451E

Query : 2004ApJ...607..451E

2004ApJ...607..451E - Astrophys. J., 607, 451-459 (2004/May-3)

Terminal velocities of luminous, early-type stars in the Small Magellanic Cloud.

EVANS C.J., LENNON D.J., TRUNDLE C., HEAP S.R. and LINDLER D.J.

Abstract (from CDS):

Ultraviolet spectra from the Space Telescope Imaging Spectrograph (STIS) are used to determine terminal velocities for 11 O and B-type giants and supergiants in the Small Magellanic Cloud (SMC) from the Si IV and C IV resonance lines. Using archival data from observations with the Goddard High-Resolution Spectrograph and the International Ultraviolet Explorer telescope, terminal velocities are obtained for a further five B-type supergiants. We discuss the metallicity dependence of stellar terminal velocities for supergiants, finding no evidence for a significant scaling between Galactic and SMC metallicities for Teff<30,000 K, consistent with the predictions of radiation-driven wind theory. A comparison of the v∞/vescratio between the SMC and Galactic samples, while consistent with the above statement, emphasizes that the uncertainties in the distances to galactic OB-type stars are a serious obstacle to a detailed comparison with theory. For the SMC sample there is considerable scatter in v∞/vescat a given effective temperature, perhaps indicative of uncertainties in stellar masses.

Abstract Copyright: ∼

Journal keyword(s): Stars: Early-Type - Stars: Fundamental Parameters - Stars: Winds, Outflows - Ultraviolet: Stars

Simbad objects: 47

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Number of rows : 47
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 SK 10 s*b 00 46 42.1591125672 -73 24 55.494317340 11.903 12.984 13.176   13.35 O6.5III(f) 56 0
3 SK 13 s*b 00 47 12.2164410744 -73 06 33.111710784   12.52 12.48     B1.5Ia 83 0
4 BBB SMC 259 s*b 00 47 38.7409708152 -73 07 48.851948496   12.17 12.24     B3Ia 43 0
5 AzV 47 * 00 48 51.4911440520 -73 25 58.537753356 12.263 13.314 13.496   14.00 O8III((f)) 45 0
6 BBB SMC 1 * 00 50 17.2067283312 -72 53 30.259838832 12.093 13.144 13.326 13.39 13.47 OC7III 52 0
7 SK 35 s*b 00 50 18.1229621664 -72 38 10.034313252 11.04 10.96 12.40   12.12 O9.5Iab 48 0
8 LIN 156 s*b 00 50 32.4050818488 -72 52 36.441355908 11.553 12.604 12.756   12.89 O5.5I(f) 58 0
9 HD 5045 s*b 00 50 38.3868754296 -73 28 18.256667052   11.02 11.04     B1Ia+ 94 0
10 AzV 80 * 00 50 43.8139294080 -72 47 41.547243120 12.22 13.24 13.376   13.59 O6IIInn(f)p 42 0
11 AzV 83 s*b 00 50 52.0015192368 -72 42 14.940550980 12.233 13.244 13.366   13.67 O7Iaf 58 0
12 AzV 95 * 00 51 21.6002057448 -72 44 14.875230300 12.67 13.64 13.83   13.95 O7.5III((f)) 53 0
13 AzV 104 s*b 00 51 38.4279675528 -72 48 06.081643404 12.053 13.064 13.226   13.57 B0.5Ia 43 0
14 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
15 AzV 191 s*b 00 57 37.2220707000 -72 13 09.258396096 12.36 13.41 13.52   13.68 B1.5:Iae 21 0
16 SK 73 s*b 00 58 35.7838206672 -72 16 25.018020660 11.73 12.63 12.66   12.69 B1Iab-Ib 38 0
17 SK 76 s*b 00 58 55.6254525024 -72 32 08.467356804 11.64 12.65 12.75   12.84 BN0Ia 52 0
18 AzV 216 EB* 00 58 59.1397025928 -72 44 34.125224352 13.11 14.15 14.32 14.49 14.56 B0IIw 43 0
19 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 547 0
20 RMC 17 s*b 00 59 45.7300850520 -72 44 56.416111080   12.02 12.2     B0Ia 70 0
21 RMC 18 s*b 01 00 06.8830919184 -72 13 57.371461032   11.7 11.5     B1Ia 76 0
22 SK 94 s*b 01 01 07.7622056304 -71 59 58.783358472   12.21 12.36 12.20   B1Ia 39 0
23 RMC 28 s*b 01 03 10.5480205584 -72 02 14.335031256 11.833 12.924 13.086   13.60 O9.7Ib 52 0
24 RMC 33 s*b 01 03 49.4514619776 -72 07 29.685468036   12.645 12.645 12.921   B1Ia 21 0
25 RMC 36 s*b 01 04 49.3494336384 -72 06 21.746153556 10.57 11.34 11.36     B3Ia 58 0
26 SK 116 s*b 01 04 55.7398901040 -72 46 48.146591280 11.413 12.494 12.646     O9.2Iab 43 0
27 SK 143 s*b 01 10 55.7567270880 -72 42 56.223094032 12.15 12.98 12.89 12.78 11.64 O9.7Ib 91 0
28 SK 148 s*b 01 12 29.0077488048 -72 29 29.054516928 11.913 13.014 13.176   13.32 O9Iab(f) 48 0
29 SK 156 s*b 01 15 28.6131066624 -73 19 50.059080372 10.90 11.85 11.93     B1.5Ia 37 0
30 SK 159 s*b 01 15 58.8782034384 -73 21 24.351532740 10.80 11.77 11.90     B0.2Ia 84 0
31 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
32 WDG 1 s*b 01 41 42.0683863272 -73 50 38.183979624   11.86 11.84     B1.5Ia 74 0
33 * 10 Per s*b 02 25 16.0283450208 +56 36 35.354429280 5.95 6.56 6.26 5.93 5.74 B2Ia 248 0
34 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
35 * ups Ori SB* 05 31 55.8599595648 -07 18 05.535884975 3.30 4.36 4.63 4.75 5.01 O9.7V 426 0
36 SK -66 169 s*b 05 36 54.6614083464 -66 38 22.427577744   12.43 12.56     O9.7Ia+ 37 0
37 * kap Ori s*b 05 47 45.3888404 -09 40 10.577707 0.87 1.88 2.06 2.09 2.27 B0.5Ia 588 0
38 BD+75 325 HS* 08 10 49.4903003712 +74 57 57.931973676 8.002 9.23 9.50 9.698 9.884 sdO5 267 0
39 HD 91969 * 10 35 49.3174367088 -58 13 27.414688080 5.57 6.41 6.43 7.56   B0I+ 124 0
40 HD 115842 s*b 13 20 48.3393402216 -55 48 02.482824528 5.70 6.39 6.09 5.77 5.52 B0.5Ia 162 0
41 HD 148688 s*b 16 31 41.7687715992 -41 49 01.732565676 5.16 5.78 5.39 5.05 4.70 B1Iaeqp 170 0
42 * zet01 Sco s*b 16 53 59.7271314888 -42 21 43.307334468 4.80 5.31 4.79 4.32 3.86 B1.5Ia+ 390 0
43 HD 191423 * 20 08 07.1135347944 +42 36 21.962454480 7.43 8.19 8.03     ON9II-IIInn 119 0
44 HD 207198 Y*? 21 44 53.2791389640 +62 27 38.048647248 5.61 6.25 5.94 5.66 5.49 O8.5II 365 0
45 Ass Cep OB 2 As* 21 51 +60.0           ~ 303 0
46 * 19 Cep * 22 05 08.7897533088 +62 16 47.332569936 4.36 5.19 5.11 4.95 4.92 O9Ib 397 0
47 NAME Local Group GrG ~ ~           ~ 9325 0

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