2018A&A...613A..65H


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST05:19:47

2018A&A...613A..65H - Astronomy and Astrophysics, volume 613A, 65-65 (2018/5-1)

The IACOB project. V. Spectroscopic parameters of the O-type stars in the modern grid of standards for spectral classification.

HOLGADO G., SIMON-DIAZ S., BARBA R.H., PULS J., HERRERO A., CASTRO N., GARCIA M., MAIZ-APELLANIZ J., NEGUERUELA I. and SABIN-SANJULIAN C.

Abstract (from CDS):

Context. The IACOB and OWN surveys are two ambitious, complementary observational projects which have made available a large multi-epoch spectroscopic database of optical high resolution spectra of Galactic massive O-type stars. Aims. Our aim is to study the full sample of (more than 350) O stars surveyed by the IACOB and OWN projects. As a first step towards this aim, we have performed the quantitative spectroscopic analysis of a subsample of 128 stars included in the modern grid of O-type standards for spectral classification. The sample comprises stars with spectral types in the range O3-O9.7 and covers all luminosity classes. Methods. We used the semi-automatizedIACOB-BROAD andIACOB-GBAT/FASTWIND tools to determine the complete set of spectroscopic parameters that can be obtained from the optical spectrum of O-type stars. A quality flag was assigned to the outcome of theIACOB-GBAT/FASTWIND analysis for each star, based on a visual evaluation of how the synthetic spectrum of the best fittingFASTWIND model reproduces the observed spectrum. We also benefitted from the multi-epoch character of the IACOB and OWN surveys to perform a spectroscopic variability study of the complete sample, providing two different flags for each star accounting for spectroscopic binarity as well as variability of the main wind diagnostic lines. Results. We obtain - for the first time in a homogeneous and complete manner - the full set of spectroscopic parameters of the "anchors" of the spectral classification system in the O star domain. We provide a general overview of the stellar and wind parameters of this reference sample, as well as updated recipes for the SpT-Teff and SpT-log g calibrations for Galactic O-type stars. We also propose a distance-independent test for the wind-momentum luminosity relationship. We evaluate the reliability of our semi-automatized analysis strategy using a subsample of ∼40 stars extensively studied in the literature, and find a fairly good agreement between our derived effective temperatures and gravities and those obtained by means of more traditional "by-eye" techniques and different stellar atmosphere codes. The overall agreement between the synthetic spectra associated with theIACOB-GBAT/FASTWIND best fitting models and the observed spectra is good for most of the analyzed targets, but 46 stars out of the 128 present a particular behavior of the wind diagnostic lines that cannot be reproduced by our grid of spherically symmetric unclumped models. These are potential targets of interest for more detailed investigations of clumpy winds and/or the existence of additional circumstellar emitting components contaminating the wind diagnostic lines (e.g., disks, magnetospheres). Last, our spectroscopic variability study has led to the detection of clear or likely signatures of spectroscopic binarity in 27% of the stars and small amplitude radial velocity variations in the photospheric lines of another 30%. Additionally, 31% of the investigated stars show variability in the wind diagnostic lines.

Abstract Copyright: © ESO 2018

Journal keyword(s): stars: early-type - stars: fundamental parameters - techniques: spectroscopic - catalogs - Galaxy: general

VizieR on-line data: <Available at CDS (J/A+A/613/A65): tabled1.dat tabled2.dat>

Simbad objects: 134

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Number of rows : 134

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 225146 s*b 00 03 57.5026343253 +61 06 13.091743443 8.32 8.96 8.60     O9.7Iab 80 0
2 HD 225160 s*b 00 04 03.7942401494 +62 13 19.008096888 7.74 8.46 8.19     O8Iabf 112 0
3 HD 10125 ** 01 40 52.7553551700 +64 10 23.118158629 7.88 8.52 8.28     O9.7II 71 0
4 HD 12323 SB* 02 02 30.1267578900 +55 37 26.377362418 7.95 8.87 8.92     ON9.2V 167 0
5 HD 12993 V* 02 09 02.4746903345 +57 55 55.949415364 8.38 9.13 8.98     O6.5V((f))Nstr 137 0
6 HD 14633 SB* 02 22 54.2920198726 +41 28 47.723244543 6.14 8.79 8.73 8.69   ON8.5V 207 0
7 HD 14947 s*b 02 26 46.9895793276 +58 52 33.116841083 7.83 8.44 7.98     O4.5If 237 0
8 HD 15570 Em* 02 32 49.4205362766 +61 22 42.089023028 8.40 8.80 8.11 7.41 6.86 O4If 282 0
9 HD 15629 Y*O 02 33 20.5872248837 +61 31 18.187980136 8.23 8.85 8.42     O4.5V((fc)) 217 0
10 HD 16691 Em* 02 42 52.0259528193 +56 54 16.462912273 10.187 9.07 8.70     O4If 141 0
11 HD 16832 * 02 44 12.7162201035 +56 39 27.246844533 10.285 9.21 8.87     O9.2III 37 0
12 HD 17603 * 02 51 47.7980122812 +57 02 54.467517969 8.68 9.10 8.45     O7.5Ib(f) 85 0
13 HD 24431 ** 03 55 38.4225403937 +52 38 28.738582945 6.50 7.11 6.74 6.36 6.10 O9III 151 0
14 * alf Cam s*b 04 54 03.0103983 +66 20 33.636467 3.47 4.34 4.29 4.18 4.18 O9Ia 635 1
15 V* AE Aur Or* 05 16 18.1489437436 +34 18 44.347016027 5.48 6.18 5.96     O9.5V 524 1
16 HD 34656 Em* 05 20 43.0823042222 +37 26 19.213246169 5.87 6.77 6.76     O7.5II(f) 191 0
17 HD 242926 * 05 22 40.0952905623 +33 19 09.406349570 9.04 9.65 9.40     O7Vz 76 0
18 HD 35619 * 05 27 36.1462913996 +34 45 18.997406116 8.08 8.79 8.66     O7.5V((f))z 103 0
19 * ups Ori V* 05 31 55.8601879 -07 18 05.537157 3.30 4.36 4.63 4.75 5.01 O9.7V 379 0
20 * del Ori Al* 05 32 00.40009 -00 17 56.7424 0.96 2.02 2.41 2.32 2.54 B0III+O9V 742 0
21 * lam Ori A Em* 05 35 08.2792540686 +09 56 02.955355445 2.17 3.48 3.47     O8III((f)) 484 0
22 * tet01 Ori C ** 05 35 16.46375 -05 23 22.8486 4.20 5.15 5.13 4.91 4.73 O7Vp 1271 1
23 * mu. Col V* 05 45 59.8953630749 -32 18 23.164726112 3.84 4.90 5.18 5.30 5.57 O9.5V 456 0
24 HD 42088 * 06 09 39.5726383124 +20 29 15.455220620 6.73 7.58 7.57 8.45   O6V((f))z 231 0
25 HD 46149 SB* 06 31 52.5314050362 +05 01 59.186016432 7.03 7.80 7.61 7.54 7.36 O8.5V 256 0
26 HD 46150 Em* 06 31 55.5205503719 +04 56 34.302522479 6.03 6.86 6.73 6.50 6.41 O5V((f))z 370 0
27 HD 46223 * 06 32 09.3066083011 +04 49 24.707398183 6.73 7.50 7.28 6.95 6.79 O4V((f)) 351 0
28 HD 46202 ** 06 32 10.4728 +04 57 59.818 7.60 8.36 8.19 7.98 7.86 O9.2V 256 0
29 HD 46966 ** 06 36 25.8880483410 +06 04 59.483890115 5.91 6.83 6.87     O8.5IV 190 0
30 HD 47432 Pu* 06 38 38.1876436469 +01 36 48.677975295 5.67 6.44 6.31 6.11 6.04 O9.7Ib 172 1
31 HD 54879 SB* 07 10 08.1488998239 -11 48 09.835011060 6.8 7.60 7.65     O9.7V 65 0
32 * tau CMa bL* 07 18 42.4864191 -24 57 15.741299 3.26 4.25 4.40 4.44 4.62 O9II 395 0
33 HD 57236 * 07 19 30.1023461594 -22 00 17.278368696 8.21 8.90 8.80 9.41   O8.5V 52 1
34 HD 64568 * 07 53 38.2052171216 -26 14 02.593344803 8.64 9.50 9.39 9.77 9.204 O3V((f*))z 90 0
35 HD 68450 * 08 11 01.6834504504 -37 17 32.541641609 5.58 6.42 6.44 7.43   O9.7II 124 0
36 CD-35 4384A ** 08 15 17.182 -35 44 14.85   10.15 9.75     ~ 2 0
37 HD 69464 Em* 08 15 48.5654685522 -35 37 52.860331301 8.47 9.11 8.80 9.42   O7Ib(f) 97 0
38 HD 71304 * 08 24 55.7884489788 -44 18 03.002879048 8.52 8.98 8.45 7.93 7.51 O9II 63 0
39 HD 75211 * 08 47 01.5923441172 -44 04 28.844578224 7.35 7.90 7.50 8.28   O8.5II((f)) 80 0
40 HD 76968 V* 08 57 28.8527633493 -50 44 58.192555629 6.53 7.33 7.21 7.01 6.87 O9.2Ib 81 1
41 CD-47 4551 s*b 08 57 54.6180323134 -47 44 15.698082312 9.11 9.41 8.54 8.92   O5Ifc 67 0
42 HD 298429 * 09 30 37.2572342402 -51 39 34.693628252 9.78 10.46 9.97 9.80   O8.5V 40 0
43 HD 91572 * 10 33 12.2652458422 -58 10 13.644176941 7.44 8.29 8.24 9.03   O6.5V((f))z 84 0
44 HD 91824 SB* 10 34 46.6320753376 -58 09 22.038009914 7.17 8.11 8.14 9.02   O7V((f))z 128 0
45 HD 93028 SB* 10 43 15.3392956864 -60 12 04.229601354 7.29 8.24 8.30 9.26   O9IV 150 0
46 HD 93027 SB* 10 43 17.9451501473 -60 08 03.278616623 7.86 8.72 8.72 9.48   O9.5IV 70 0
47 HD 93128 SB* 10 43 54.3955430232 -59 32 57.496584258 8.82 8.97 8.77 9.40 8.71 O3.5V((fc))z 83 1
48 Cl Trumpler 14 9 * 10 43 55.3598573371 -59 32 48.871108470 9.282 10.102 9.902 9.31 9.45 O8.5V 8 0
49 CD-59 3274 * 10 43 57.4813849640 -60 05 28.172418375 8.42 9.37 9.36 9.76   O9V 26 0
50 HD 93129 ** 10 43 57.486 -59 32 51.44 6.26 7.06 6.90     O2If*+O3.5V((f)) 188 1
51 HD 93146 ** 10 44 00.159 -60 05 09.88   8.25 8.24 9.28   O6V+O9.5V 81 0
52 HD 93160 SB* 10 44 07.2584431932 -59 34 30.616109285 7.27 7.99 7.60 8.46   O7III((f)) 102 0
53 HD 93204 * 10 44 32.3390160673 -59 44 31.020859370 7.63 8.52 8.42 8.20 7.92 O5.5V((f)) 172 0
54 HD 93222 * 10 44 36.2479580459 -60 05 28.886871750 7.26 8.15 8.10 8.91   O7V((f))z 182 0
55 HD 303311 SB* 10 44 37.4603321026 -59 32 55.459963798 8.30 9.042 8.979 9.58 9.09 O6V((f))z 74 0
56 CD-59 3300 * 10 44 41.7970027863 -59 46 56.403492769 8.07 8.79 8.57 9.33   O6V((f)) 128 0
57 HD 93249 PM* 10 44 43.8755711016 -59 21 25.143238139 7.75 8.78 8.20 9.20   O9III 82 0
58 HD 93250 * 10 44 45.0270200315 -59 33 54.681395850 6.73 8.12 7.50 8.38   O4III(fc) 291 0
59 HD 303308 ** 10 45 05.9146041531 -59 40 05.922859453 7.45 8.30 8.17 7.92 7.75 O4.5V((fc)) 279 0
60 HD 93843 Er* 10 48 37.7714362588 -60 13 25.516378731 6.37 7.29 7.33 8.23   O5III(fc) 154 0
61 HD 94024 * 10 50 01.5072007373 -57 52 26.266953436 8.03 9.15 9.45 9.41   O8IV 48 0
62 HD 303492 Em* 10 51 52.7493718750 -58 58 35.266002756 9.00 9.45 8.85 9.40   O8.5Iaf 51 0
63 HD 94963 Em* 10 56 35.7863597984 -61 42 32.283278825 6.35 7.17 7.26 8.10   O7II(f) 74 0
64 HD 96264 * 11 04 55.5014574786 -61 03 05.788184719 6.60 7.54 7.62 8.49   O9.5III 59 0
65 HD 96622 SB* 11 06 59.7815299074 -59 40 04.373550034 8.37 9.05 8.87 9.50   O9.2IV 55 0
66 HD 96715 * 11 07 32.8168866186 -59 57 48.703746695 7.51 8.32 8.28 9.04   O4V((f))z 103 0
67 HD 96946 * 11 08 51.7683332783 -60 45 33.909177801 7.93 8.69 8.55 9.24   O6.5III(f) 56 0
68 HD 97848 * 11 14 31.9023996847 -59 01 28.839328749 7.66 8.59 8.60 9.43   O8V 72 0
69 HD 101190 * 11 38 09.9112605648 -63 11 48.613340265 6.58 7.37 7.33 8.48   O6IV((f)) 150 0
70 HD 101223 * 11 38 22.7705432957 -63 12 02.797195093 8.12 9.55 9.51 9.41   O8V 73 0
71 HD 104565 s*b 12 02 27.7963615668 -58 14 34.357788781 9 9.55 9.27 9.65   OC9.7Iab 43 0
72 HD 105056 s*b 12 05 49.8805966991 -69 34 22.993604342 6.57 9.07 8.74 8.45   ON9.7Iae 119 1
73 HD 114737 ** 13 13 45.5289558909 -63 35 11.705673659 7.43 8.19 8.00 8.92   O8.5III 54 0
74 HD 123008 s*b 14 07 30.6440577747 -64 28 08.780113899 8.58 10.00 9.50 9.44   ON9.2Iab 98 0
75 HD 125241 V* 14 20 22.7841626023 -60 53 22.244481384 8.60 9.08 8.60 8.95   O8.5Ib(f) 75 0
76 HD 135591 * 15 18 49.1429870266 -60 29 46.794326631 4.46 5.36 5.46 6.91   O8IV((f)) 145 0
77 * mu. Nor s*b 16 34 05.0202815 -44 02 43.128156 4.05 4.99 4.94 6.36   O9.7Iab 258 0
78 HD 151515 SB* 16 49 48.2513677482 -42 00 06.175258125 6.77 7.48 7.30 7.11 6.88 O7II(f) 114 0
79 HD 151804 s*b 16 51 33.7215112148 -41 13 49.928887100 4.45 5.29 5.22     O8Iaf 350 0
80 HD 152147 SB* 16 53 28.6177132113 -42 07 17.050796030 7.20 7.76 7.34 6.97 6.60 O9.7IbNwk 95 0
81 HD 152249 s*b 16 54 11.6391931444 -41 50 57.294733186 5.91 6.65 6.45     OC9Iab 217 0
82 CD-41 11037 SB* 16 54 13.2251837411 -41 50 32.523158756 7.21 8.08 7.90     O9IV 69 0
83 HD 152405 SB* 16 54 55.3693738212 -40 31 29.392303718 6.71 7.42 7.29 7.12 6.96 O9.7II 110 1
84 HD 152424 s*b 16 55 03.3297426438 -42 05 26.993062976 6.11 6.69 6.27 7.49   OC9.2Ia 181 0
85 V* V1297 Sco Al* 16 56 05.2156792717 -40 20 57.576409562 7.87 9.11 9.29 9.29   O7.5Vz 121 0
86 HD 152723 * 16 56 54.6718019380 -40 30 44.457237721 6.43 7.24 7.10 8.11 8.47 O6.5III(f) 140 0
87 HD 322417 * 16 58 55.3897028845 -40 14 33.378042707 10.65 10.90 10.22 10.02   O6.5IV((f)) 38 0
88 HD 154368 s*b 17 06 28.3687923960 -35 27 03.759955171 6.10 6.63 6.13 7.12   O9.5Iab 263 0
89 HD 154643 * 17 08 13.9816706301 -35 00 15.670543148 6.76 7.42 7.20 8.23   O9.7III 46 1
90 HD 154811 * 17 09 53.0868663445 -47 01 53.192207532 6.71 7.32 6.98 7.71   OC9.7Ib 78 0
91 HD 155889 ** 17 15 50.7533188725 -33 44 13.256102872 5.68 6.54 6.55 7.60   O9.5IV 78 1
92 HD 156154 V* 17 17 27.0094090389 -35 32 12.005415836 8.19 8.64 8.04 8.94   O7.5Ib(f) 67 0
93 Cl HM 1 6 * 17 19 06.0228056917 -38 46 45.011981061 13.53 13.18 11.64     O5.5Ifc 18 1
94 HD 319699 * 17 19 30.4179094473 -35 42 36.122491362 10.17 10.31 9.63 9.81 8.91 O5V((fc)) 56 0
95 HD 319702 * 17 20 50.6127602130 -35 51 46.032286972 10.94 11.04 10.11 10.10   O8III 45 0
96 HD 156738 * 17 20 52.6585219138 -36 04 20.561546134 10.06 10.27 9.35 9.65   O6.5III(f) 66 0
97 Cl Pismis 24 17 * 17 24 44.7310281846 -34 12 02.700935729 13.61 13.33 11.84 11.35 9.61 O3.5III(f*) 33 0
98 HD 157857 Em* 17 26 17.3320365674 -10 59 34.785692564 7.16 7.95 7.78     O6.5II(f) 156 0
99 * 63 Oph * 17 54 54.0431493243 -24 53 13.544413171 5.35 6.24 6.20 7.33   O8II((f)) 165 0
100 HD 163800 * 17 58 57.2583205084 -22 31 03.169198580 6.61 7.27 7.00 6.68 6.49 O7.5III((f)) 135 0
101 HD 163758 s*b 17 59 28.3670166132 -36 01 15.588119230 6.46 7.35 7.32 8.38   O6.5Iafp 144 0
102 HD 167633 * 18 16 49.6543537937 -16 31 04.307702454 7.69 9.16 9.07 8.91   O6.5V((f)) 67 1
103 BD-11 4586 * 18 18 03.3435482408 -11 17 38.832493892 10.26 10.33 9.52     O8Ib(f) 47 0
104 HD 168076 ** 18 18 36.4221548165 -13 48 02.462547922 8.12 8.72 8.25 7.62 7.21 O4III(f) 180 0
105 HD 168112 ** 18 18 40.8671023267 -12 06 23.366098112 8.81 9.21 8.52 9.24   O5III(f) 136 0
106 HD 169582 s*b 18 25 43.1467026751 -09 45 11.036987380 8.74 9.24 8.70     O6Iaf 82 0
107 HD 171589 Em* 18 36 12.6381404282 -14 06 55.835294625 7.91 8.60 8.28 7.95 7.74 O7.5II(f) 77 0
108 HD 188209 s*b 19 51 59.0685711923 +47 01 38.420250587 4.61 5.55 5.63 5.54 5.64 O9.5Iab 288 0
109 * 9 Sge s*b 19 52 21.7651155105 +18 40 18.753390402 5.32 6.24 6.23     O7.5Iabf 275 1
110 HD 189957 * 20 01 00.0042530904 +42 00 30.818892996 6.93 7.84 7.82     O9.7III 92 0
111 HD 190429 ** 20 03 29.39885 +36 01 30.5082 5.98 6.78 6.63     O4If+O9.5II 197 0
112 HD 190864 Em* 20 05 39.8022905765 +35 36 27.989246210 7.18 7.93 7.78     O6.5III(f) 210 0
113 HD 191612 SB* 20 09 28.6111448914 +35 44 01.287772714 7.40 8.07 7.80     O8fpe 211 0
114 HD 191781 s*b 20 09 50.5815085623 +45 24 10.485607388 10.1 10.06 9.53     ON9.7Iab 59 0
115 HD 191978 * 20 10 58.2801550674 +41 21 09.922990071 7.38 8.15 8.03     O8Vz 62 0
116 HD 192001 * 20 11 01.7067715756 +42 07 36.398544136 7.97 8.52 8.29     O9.5IV 45 0
117 HD 192639 s*b 20 14 30.4275040181 +37 21 13.815126140 6.83 7.46 7.11     O7.5Iabf 268 0
118 HD 193443 ** 20 18 51.7093796362 +38 16 46.504188062 7.11 7.61 7.26     O9III 136 0
119 HD 193514 Em* 20 19 08.4971406843 +39 16 24.252177258 7.32 7.83 7.38     O7Ib(f) 179 0
120 HD 229196 Pu* 20 23 10.7833240392 +40 52 29.839468216 9.29 9.32 8.59     O6II(f) 110 0
121 HD 195592 s*b 20 30 34.9690436039 +44 18 54.858025184 7.75 7.95 7.08 6.29 5.60 O9.7Ia 197 1
122 BD+40 4219 * 20 32 13.8220814591 +41 27 12.005606749 11.50 11.40 10.22     O7III((f)) 103 0
123 Schulte 9 s*b 20 33 10.7366753544 +41 15 08.222187463 13.38 12.77 10.96     O4.5If 206 0
124 Schulte 7 * 20 33 14.1095790591 +41 20 21.903381641 12.24 12.00 10.55     O3If* 129 0
125 BD+41 3807 SB* 20 34 08.5147839926 +41 36 59.407506888 11.74 11.52 10.03     O5.5Ifc 112 0
126 HD 202124 s*b 21 12 28.3896915394 +44 31 54.125407798 7.33 7.94 7.76     O9Iab 89 0
127 HD 207198 * 21 44 53.2790298387 +62 27 38.042162728 5.61 6.25 5.94 5.66 5.49 O8.5II 321 0
128 HD 207538 * 21 47 39.7898466603 +59 42 01.344202478 7 7.55 7.30     O9.7IV 177 1
129 * 19 Cep * 22 05 08.7884887056 +62 16 47.323982519 4.36 5.19 5.11 4.95 4.92 O9Ib 362 0
130 HD 210809 s*b 22 11 38.6004905633 +52 25 47.950552363 6.7 7.61 7.56     O9Iab 194 0
131 * 10 Lac ** 22 39 15.6786372 +39 03 00.971152 3.650 4.670 4.880 4.98 5.19 O9V 718 0
132 HD 216898 * 22 55 42.4581895079 +62 18 22.820044865 8.10 8.58 8.04     O9V 140 0
133 HD 218195 ** 23 05 12.93161 +58 14 29.3496 7.91 8.62 8.44     O8.5III 67 0
134 HD 218915 s*b 23 11 06.9480376287 +53 03 29.651927910 6.32 7.22 7.20     O9.2Iab 184 1

    Equat.    Gal    SGal    Ecl

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2020.07.04-05:19:47

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