2017AJ....154..102U

Query : 2017AJ....154..102U

2017AJ....154..102U - Astron. J., 154, 102-102 (2017/September-0)

LMC blue supergiant stars and the calibration of the Flux-weighted Gravity-Luminosity Relationship.

URBANEJA M.A., KUDRITZKI R.-P., GIEREN W., PIETRZYNSKI G., BRESOLIN F. and PRZYBILLA N.

Abstract (from CDS):

High-quality spectra of 90 blue supergiant stars in the Large Magellanic Cloud are analyzed with respect to effective temperature, gravity, metallicity, reddening, extinction, and extinction law. An average metallicity, based on Fe and Mg abundances, relative to the Sun of [Z] = -0.35 ± 0.09 dex is obtained. The reddening distribution peaks at E(B-V) = 0.08 mag, but significantly larger values are also encountered. A wide distribution of the ratio of extinction to reddening is found ranging from RV = 2 to 6. The results are used to investigate the blue supergiant relationship between flux-weighted gravity, gf ≡ g/Teff4, and absolute bolometric magnitude Mbol. The existence of a tight relationship, the Flux-weighted Gravity-Luminosity Relationship (FGLR), is confirmed. However, in contrast to previous work, the observations reveal that the FGLR is divided into two parts with a different slope. For flux-weighted gravities larger than 1.30 dex, the slope is similar to that found in previous work, but the relationship becomes significantly steeper for smaller values of the flux-weighted gravity. A new calibration of the FGLR for extragalactic distance determinations is provided.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: distances and redshifts - galaxies: individual: LMC - stars: early-type - supergiants - supergiants

VizieR on-line data: <Available at CDS (J/AJ/154/102): table6-13.dat table1-4.dat>

Simbad objects: 104

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Number of rows : 104
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 HD 270754 s*b 04 47 04.4509965192 -67 06 53.121123648 10.351 11.219 11.26   10.992 B1.5Ia 92 0
5 HD 268612 * 04 47 33.2251006320 -69 14 32.870031360   12.71 12.53 12.33   A3I 22 0
6 HD 268623 s*b 04 52 19.0947780648 -66 43 53.320001052 10.709 11.51 11.61   11.482 B2Ia 48 0
7 HD 268653 s*b 04 53 30.0339060432 -66 55 28.189420104   10.68 10.76 10.71 10.67 B3Ia 45 0
8 HD 268758 sg* 04 53 59.5255335288 -69 22 42.587996664   12.65 12.60 12.47   A1Iab 21 0
9 HD 268685 s*b 04 54 31.8862673064 -67 15 24.584925456 10.616 11.376 11.541   11.599 B1Ia 55 0
10 HD 268719 sg* 04 55 21.6044106408 -67 26 11.254874424   11.2 11.3     A1Iak 31 0
11 SK -66 15 * 04 55 22.3466106768 -66 28 19.100254044 11.888 12.660 12.894   12.759 B0.5Ia 19 0
12 BI 26 * 04 55 32.9332368624 -66 25 27.897861648 12.613 13.388 13.446   13.501 B1Ib 17 0
13 SK -69 39a Pe* 04 55 40.4523656856 -69 26 41.002117764   12.45 12.34 12.24   A0I 19 0
14 HD 268809 s*b 04 56 10.4576405688 -69 15 38.298995208 10.762 11.866 11.964   12.031 B0.7Ia 45 0
15 SK -66 23 * 04 56 17.5569600120 -66 18 18.954787860 12.504 13.144 13.089   13.358 B2.5Iab 15 0
16 SK -66 26 * 04 56 20.5720396080 -66 27 13.974773328 12.140 12.904 12.919   12.718 B1Ib 17 0
17 SK -66 27 s*b 04 56 23.4938412192 -66 29 52.089824112 11.099 11.832 11.779     B3Ia 23 0
18 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 275 0
19 HD 268732 s*b 04 57 04.4395141656 -66 34 38.571040380 10.652 11.494 11.587     BC1Iab 60 0
20 HD 268726 s*b 04 57 08.8248830784 -66 23 25.201132620 10.475 11.39 11.265     B2Ia 41 0
21 [ELS2006] N11 054 * 04 57 18.3250220664 -66 25 59.692612800 13.361 14.065 14.107   14.098 B1Ib 10 0
22 SK -66 37 * 04 57 22.0798387416 -66 24 27.680296824 12.126 12.869 12.963 12.92 12.898 B0.7Ib 22 1
23 [ELS2006] N11 036 * 04 57 41.0084798592 -66 29 56.642184132 12.877 13.577 13.803   13.845 B0.5Ib 16 0
24 SK -67 28 Pu* 04 58 39.2402576592 -67 11 18.643364988 11.340 12.082 12.269   12.228 B0.7Ia 23 0
25 CPD-67 381 Pu* 05 01 22.5825475560 -67 20 09.986762652 11.042 11.93 12.42   12.024 OB 15 0
26 SK -68 26 s*b 05 01 32.2453117296 -68 10 42.937181508 10.822 11.728 11.85     BC2Ia 41 0
27 SK -70 45 * 05 02 17.8072426944 -70 26 56.756052456   12.54 12.53     A0Iab 10 0
28 HD 268907 s*b 05 03 08.8162586160 -66 57 34.851132288 10.023 10.511 10.6     B5Ia 62 0
29 CPD-68 312 * 05 05 15.1972545600 -68 02 14.146413504 10.810 11.721 11.71   11.725 OB 27 0
30 SK -68 41 * 05 05 27.1146438696 -68 10 02.642123460 10.855 11.868 12.01   12.086 B0.7Ia 59 0
31 SK -68 45 * 05 06 07.2869246304 -68 07 06.160310040 10.782 11.92 12.007   12.136 OB 15 0
32 HD 269074 * 05 06 16.0418710536 -70 29 35.671642404 10.291 11.0 11.1   11.443 OB 25 0
33 HD 269172 sg* 05 09 38.9151972696 -71 24 02.235586392 9.929 10.648 10.56   11.864 A0Ia0 41 0
34 HD 269238 * 05 14 31.5729848784 -69 13 53.382785664 10.388 11.013 11.053 10.86 10.916 B6I 32 0
35 HD 269311 * 05 17 17.5456016184 -69 46 44.094249480 10.211 11.999 11.428   11.474 OB 21 0
36 HD 269371 * 05 20 19.0830107928 -67 18 05.679651096   11.3 11.0     B3Ia 54 0
37 HD 269414 sg* 05 21 22.3977960696 -69 27 08.072668692   10.80 10.71 10.84   A1Ia 22 0
38 HD 269440 Pu* 05 23 00.6635783712 -67 11 22.048279584   11.31 11.50     B1Ia 39 0
39 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
40 HD 269545 * 05 26 56.4771093528 -67 39 35.044558632   11.77 11.90     OB 17 0
41 W61 17-35 * 05 28 16.1756415288 -68 51 45.582477912   11.64 11.71     OB 21 0
42 SK -66 106 * 05 29 00.9965765448 -66 38 27.790072368   12.64 12.72     OB 19 0
43 SK -67 133 s*b 05 29 21.7110791904 -67 20 11.262387336 11.703 12.574 12.676   11.888 B2.5Iab 19 0
44 HD 269629 * 05 29 42.6055842288 -67 20 47.705737776   12.27 12.31     B8Ia 21 0
45 HD 269634 sg* 05 29 56.5079662536 -67 27 30.864803148   12.54 12.49 12.38   A0Ia 22 0
46 HD 269638 sg* 05 30 01.2426864648 -67 14 36.900922452   12.10 11.98     A2Iab 25 0
47 HD 269639 s*b 05 30 07.0934688024 -67 15 43.196491008 10.365 11.49 11.360     B7Ia+ 24 0
48 SK -67 150 * 05 30 31.7098838016 -67 00 53.369450748 11.241 12.034 12.24   10.856 OB 15 0
49 Cl* NGC 2004 BBBC 384 * 05 30 37.4924014128 -67 16 53.489354016 12.183 13.154 13.336   13.493 B1.5Iab 12 0
50 W61 18-7 s*b 05 30 40.1112224280 -67 16 37.917073488   12.35 12.28 12.29   B9Ia 14 0
51 NGC 2004 Cl* 05 30 41.340 -67 17 21.83   9.6       ~ 281 0
52 Cl* NGC 2004 ELS 21 * 05 30 42.0391828224 -67 21 41.678552700 12.919 13.665 13.744   13.997 B1.5Ib 9 0
53 Cl* NGC 2004 BBBC 485 * 05 30 47.3766213336 -67 17 23.256925080 12.982 13.740 13.863   13.925 B1.5Ib 18 0
54 HD 269660 s*b 05 30 47.7753524136 -71 04 02.325450144 10.281 11.15 11.19   10.767 B2Ia 64 0
55 HD 269661 sg* 05 30 50.0811353208 -69 31 29.399422332 9.95 10.47 10.34 10.16 10.03 A0Ia0e: 61 0
56 SK -66 118 * 05 30 51.9088749432 -66 54 09.081058104 11.075 11.47 11.28     OB 22 0
57 HD 269668 * 05 31 00.8452572672 -68 53 57.095854332 11.919 10.161 12.01   10.592 OB 26 0
58 SK -67 154 * 05 31 03.7735767792 -67 21 20.476697544 11.633 12.584 12.666   12.621 B1.5Ia 12 0
59 HD 269678 sg* 05 31 12.8230636800 -67 15 07.965136512   11.87 12.19 10.16   A1I 25 0
60 HD 269689 s*b 05 31 27.9339902160 -67 24 44.253916884   11.96 11.79     B9Ia 25 0
61 SK -67 169 * 05 31 51.5898307488 -67 02 22.242829128   12.06 12.18     B1Ia 30 0
62 SK -67 170 sg* 05 31 52.9741916496 -67 12 15.326443296 12.283 12.594 12.576 12.45 10.888 A1Iab 14 0
63 SK -67 171 s*b 05 32 00.7765775112 -67 20 23.033750064   12.046 12.086 12.189   B8Ia 24 0
64 HD 269713 * 05 32 07.3204424448 -67 29 13.969943952   11.81 11.88     OB 19 0
65 SK -67 173 * 05 32 10.7431012584 -67 40 25.026998376 8.935 11.92 12.04   10.919 OB 11 0
66 HD 269781 sg* 05 34 22.4676706872 -67 01 23.569790196 9.34 9.94 9.87 9.74 9.67 A0Iae 64 0
67 HD 271369 * 05 34 35.2304789784 -65 38 52.779954912   11.5 11.3     A2I 15 0
68 HD 269797 s*b 05 34 50.1700411296 -67 21 12.494103732 10.34 10.92 10.88     B9Ia0:(e?) 35 0
69 SK -67 206 Pu* 05 34 55.1119839984 -67 02 37.460560632 11.995 9.862 12.00   11.109 OB 15 0
70 HD 269863 * 05 36 04.1601657480 -66 13 43.501218420   11.67 11.71     OB 21 0
71 CPD-69 419 s*b 05 36 16.4168956392 -69 31 26.976407988 11.419 12.279 12.19   12.329 B0.7Ia 12 0
72 HD 38029A WR* 05 36 54.633 -69 11 38.08           WC4 55 1
73 HD 38029 ** 05 36 55.16856 -69 11 37.6584 14.523     11.91 11.680 ~ 64 0
74 HD 38029B s*b 05 36 55.1865323232 -69 11 37.582606608           B1Ia+ 60 1
75 CPD-69 436 s*b 05 37 09.1787926949 -69 20 19.505185054   12.182 12.139 12.338   BC1.5Ia 32 0
76 BI 250 s*b 05 37 17.8521060696 -69 09 46.206231516 13.00 13.72 13.48     B0.7IaNwk 12 0
77 [ST92] 1-17 * 05 37 33.7546954104 -69 08 13.185864312 13.069 13.832 13.616 13.52 12.990 B0.7Ib-Iab 11 0
78 VFTS 82 * 05 37 36.0828923664 -69 06 44.940578724   13.55 13.61     B0.5Ib-Iab 9 0
79 HD 269900 * 05 37 41.0147529864 -67 43 16.568563296 8.716 11.44 11.475   9.800 OB 31 0
80 CPD-69 445 s*b 05 38 01.2704118024 -69 22 14.049636204 11.243 12.122 12.032   12.107 B1Ia 21 0
81 [ST92] 1-104 s*b 05 38 04.7673520584 -69 09 05.433701724 14.473 14.945 14.598 14.55 13.882 B3Ia 9 0
82 [HBC93] 256 * 05 38 15.140 -69 04 01.18   14.28 14.35     B3Ib 11 0
83 VFTS 302 * 05 38 18.9940553448 -69 11 12.708596796   15.85 15.53     B1.5Ib 8 0
84 VFTS 315 * 05 38 20.5973701080 -69 15 37.808867340   14.84 14.81     B1Ib 10 0
85 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
86 RMC 137 s*b 05 38 36.9624548664 -69 05 07.874900232   12.12 12.02   12.05 B1Ia 33 0
87 RMC 142 s*b 05 38 42.7360833048 -69 05 42.617961852   12.11 11.82   11.59 B0Ia 39 0
88 RMC 141 s*b 05 38 45.5859 -69 05 47.772   12.71 12.49   12.36 BN0.5Ia 32 0
89 SK -68 140 s*b 05 38 57.1713887928 -68 56 53.151615708   12.81 12.71 12.89   B0.7Ib-IabNwk 53 0
90 W61 7-29 s*b 05 39 04.7719738776 -69 04 09.915616344 12.403 13.154 12.756     B1Ia 19 0
91 VFTS 831 s*b 05 39 39.8654630880 -69 12 04.336538364   13.33 13.04     B5Ia 7 0
92 BI 261 * 05 40 01.3303227384 -69 07 59.545637364 13.74 14.76 14.63     B1IbNwk 11 0
93 HD 269997 s*b 05 41 20.3933761824 -69 05 07.273296276   11.36 11.20     B2.5Ia 62 0
94 NAME LMC 2 Supergiant Shell sh 05 41 27 -69 22.4           ~ 200 0
95 HD 269992 s*b 05 41 27.6753953664 -69 48 03.751627752   11.27 11.22     B2.5Ia 57 0
96 HD 269993 s*b 05 41 36.7920794640 -70 00 52.617185028 10.812 11.872 11.516   11.965 B0.7Ia 22 0
97 CPD-67 500 Em* 05 44 25.0227763560 -67 13 49.579736268 10.857 11.76 11.751 12.13 11.857 OB 29 0
98 HD 270086 sg* 05 45 16.6166875920 -68 59 51.972542376   10.45 10.19 10.22 10.08 A1Ia0 68 0
99 HD 270220 s*b 05 50 22.9856958720 -68 11 24.660617280 11.051 11.960 12.001   12.171 B0.7Ia 28 0
100 HD 270196 s*b 05 51 20.7793116768 -70 17 09.299979960 10.038 11.490 11.6   11.646 B1.5Ia 59 0
101 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
102 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
103 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
104 NAME Local Group GrG ~ ~           ~ 9325 0

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