2008A&A...489..105S


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET19:39:09

2008A&A...489..105S - Astronomy and Astrophysics, volume 489, 105-114 (2008/10-1)

On the origin of field O-type stars.

SCHILBACH E. and ROESER S.

Abstract (from CDS):

We aim to identify the origins of field O-stars in the nearest 2 to 3 kpc around the Sun using the best presently available kinematic data on O-stars and on young open clusters. We investigate the question of whether the present-day data are consistent with the assumption that O-stars have formed in groups (clusters, associations), or in isolation. We apply the epicycle theory to back-trace the orbits of O-type stars and of candidate parent open clusters. From the 370 O-stars in the ``Galactic O star catalog v 2.0'' (GOSV2) we have investigated 93 stars classified as field, and found the origin for 73 of them in 48 open clusters younger than 30Myr. Only for 32 stars or about 9% of all O-stars from this catalogue is the question of their origin in groups not solved; some of them may have originated in isolation or may have disintegrated the group in which they formed. Fifty percent of the young open clusters (age<30Myr) in the ``Catalogue of Open Cluster Data'' (COCD) have O-stars as members, or have ejected at least one O-star in the first 10Myr of their life, or both. During this period the average mass loss from open clusters by ejecting O-stars is found to be 3 to 5M per Myr. We prove that ζ Pup had its origin in the open cluster Trumpler 10 which it left about 2.5Myr ago, and that its present-day distance is 300pc (compared to 440pc before). The revised distance implies a significant revision of the stellar parameters (a radius of 14R, a mass of 22.5M, and a luminosity of logL/L of 5.74) i.e., ζ Pup is closer, less massive, and less luminous than previously thought. Our findings provide independent estimates of the present-day distances and absolute magnitudes of field O-stars.

Abstract Copyright:

Journal keyword(s): stars: early-type - stars: formation - open clusters and associations: general

Simbad objects: 128

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Number of rows : 128

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* AO Cas WU* 00 17 43.0629024684 +51 25 59.115602831 5.04 6.01 6.14     O9.2II+O8V((f)) 320 0
2 IC 1590 OpC 00 52 49 +56 37.7           ~ 49 0
3 HD 10125 ** 01 40 52.7553551700 +64 10 23.118158629 7.88 8.52 8.28     O9.7II 72 0
4 NGC 663 OpC 01 46 09 +61 14.1   7.78 7.1     ~ 237 0
5 HD 12323 SB* 02 02 30.1267578900 +55 37 26.377362418 7.95 8.87 8.92     ON9.2V 169 0
6 HD 12993 V* 02 09 02.4746903345 +57 55 55.949415364 8.38 9.13 8.98     O6.5V((f))Nstr 139 0
7 HD 13022 * 02 09 30.0715419267 +58 47 01.555417587   9.06 8.83     O9.7II-III 52 0
8 HD 13745 bC* 02 15 45.9348133590 +55 59 46.728415082 7.22 7.99 7.90     O9.7II(n) 161 1
9 NGC 869 OpC 02 19 00 +57 07.7           ~ 436 0
10 [KPR2005] 8 OpC 02 20 49 +59 36.6           ~ 17 0
11 Ass Per OB 1 As* 02 21 +57.6           ~ 163 1
12 HD 14434 Em* 02 21 52.4122106464 +56 54 18.032877629 7.87 8.65 8.49 8.29 8.20 O5.5Vnn((f))p 172 0
13 HD 14442 V* 02 22 10.7000311184 +59 32 58.894123083 9.01 9.58 9.27     O5n(f)p 99 0
14 NGC 884 OpC 02 22 23 +57 07.5           ~ 452 0
15 HD 14633 SB* 02 22 54.2920198726 +41 28 47.723244543 6.14 8.79 8.73 8.69   ON8.5V 210 0
16 HD 14947 s*b 02 26 46.9895793276 +58 52 33.116841083 7.83 8.44 7.98     O4.5If 238 0
17 HD 15137 SB* 02 27 59.8115835376 +52 32 57.594553098 7 7.92 7.86     O9.5II-IIIn 116 0
18 NGC 957 OpC 02 33 21 +57 33.6   8.34 7.6     ~ 87 0
19 HD 16691 Em* 02 42 52.0259528193 +56 54 16.462912273 10.187 9.07 8.70     O4If 143 0
20 [KPR2005] 9 OpC 02 46 55 +57 43.8           ~ 16 0
21 HD 17603 * 02 51 47.7980122812 +57 02 54.467517969 8.68 9.10 8.45     O7.5Ib(f) 86 0
22 HD 39680 Be* 05 54 44.7314236108 +13 51 17.068152340 7.05 8.01 7.99     O6V:[n]pevar 115 0
23 NGC 2129 OpC 06 01 07 +23 19.3   7.31 6.7     ~ 98 0
24 NGC 2169 OpC 06 08 24 +13 59.4   5.99 5.9     ~ 145 0
25 HD 41997 * 06 08 55.8225631699 +15 42 18.192142635 8.16 9.47 9.13 8.83   O7.5Vn((f)) 88 0
26 C 0615+236 OpC 06 18 00 +23 38.0     5.7     ~ 24 0
27 HD 44811 * 06 24 38.3546226020 +19 42 15.808878424 7.72 8.54 8.48 8.91   O7V(n)z 60 0
28 C 0634+060 OpC 06 37 19.0 +05 57 55     4.6     ~ 33 0
29 HD 52266 SB* 07 00 21.0761535622 -05 49 35.948161271 6.32 7.22 7.23     O9.5IIIn 108 0
30 HD 52533 EB* 07 01 27.0485530401 -03 07 03.281136257 6.66 7.57 7.68     O8.5IVn 105 0
31 HD 57236 * 07 19 30.1023461594 -22 00 17.278368696 8.21 8.90 8.80 9.41   O8.5V 55 1
32 NGC 2414 OpC 07 33 12 -15 27.2   8.33 7.9     ~ 67 0
33 * zet Pup BY* 08 03 35.04754 -40 00 11.3321 0.89 1.98 2.25 2.36 2.58 O4I(n)fp 1107 1
34 HD 69464 Em* 08 15 48.5654685522 -35 37 52.860331301 8.47 9.11 8.80 9.42   O7Ib(f) 98 0
35 [KPR2005] 45 OpC 08 15 50 -35 39.0           ~ 14 0
36 HD 75222 s*b 08 47 25.1379208787 -36 45 02.670863732 7.24 7.80 7.42 8.22   O9.7Iab 85 0
37 Cl Trumpler 10 OpC 08 47 54 -42 27.0           ~ 150 0
38 C 0855-430 OpC 08 57 08 -43 15.0           ~ 23 0
39 HD 76968 V* 08 57 28.8527633493 -50 44 58.192555630 6.53 7.33 7.21 7.01 6.87 O9.2Ib 83 1
40 NAME Vela R2 As* 09 00 -43.0           ~ 25 0
41 Cl Collinder 205 OpC 09 00 32 -48 59.0           ~ 49 0
42 HD 89137 * 10 15 40.0856062390 -51 15 24.090337747 7.02 7.93 7.97 8.82   ON9.7II(n) 87 1
43 IC 2581 OpC 10 27 29 -57 37.0   4.79 4.3     ~ 115 0
44 HD 91651 bC* 10 33 30.2995844296 -60 07 40.038449715 7.96 9.64 9.52 9.51   ON9.5IIIn 91 0
45 Cl Loden 153 OpC 10 34 41 -58 07.8           ~ 22 1
46 NGC 3324 OpC 10 37 20 -58 38.5   6.91 6.7     ~ 101 1
47 Cl Trumpler 14 OpC 10 43 56 -59 33.0   5.70 5.5     ~ 444 0
48 Cl Collinder 228 OpC 10 44 00 -60 05.2   4.58 4.4     ~ 192 0
49 HD 305523 * 10 44 29.4765429281 -59 57 18.088074324 7.82 8.64 8.50 9.25   O9II-III 62 0
50 Cl Trumpler 15 OpC 10 44 43 -59 22.0   7.41 7.0     ~ 183 0
51 HD 305532 * 10 45 34.0458012945 -59 57 26.605020147 9.80 10.54 10.20 10.16 9.563 O6.5V((f))z 44 0
52 HD 305539 * 10 46 33.0587566341 -60 04 12.600433111 9.43 10.24 9.91 10.02 9.481 O8Vz 43 0
53 HD 93632 * 10 47 12.6336476063 -60 05 50.813668231 7.89 8.69 9.10 9.04   O5Ifvar 80 0
54 HD 93652 PM* 10 49 01.6798842811 +20 53 13.925916510   9.37 8.69     G5 14 0
55 HD 303492 Em* 10 51 52.7493718750 -58 58 35.266002756 9.00 9.45 8.85 9.40   O8.5Iaf 54 0
56 Ass Car OB 1f As* 10 52 42 -58 47.3           ~ 1 0
57 HD 94963 Em* 10 56 35.7863597984 -61 42 32.283278825 6.35 7.17 7.26 8.10   O7II(f) 75 0
58 Cl Loden 306 OpC 11 06 08 -61 06.0           ~ 19 0
59 HD 96917 V* 11 08 42.6177305611 -57 03 56.912915285 6.46 7.29 7.21 7.04 6.89 O8Ib(n)(f) 99 0
60 HD 96946 * 11 08 51.7683332783 -60 45 33.909177801 7.93 8.69 8.55 9.24   O6.5III(f) 57 0
61 NGC 3572 OpC 11 10 23 -60 14.9           ~ 78 0
62 [KPR2005] 65 OpC 11 11 06 -61 07.2           ~ 17 0
63 HD 97848 * 11 14 31.9023996847 -59 01 28.839328749 7.66 8.59 8.60 9.43   O8V 74 0
64 Mrk 38 PaG 11 18 17.069 +53 44 59.51   15.2       ~ 39 0
65 C 1128-631 OpC 11 30 37 -63 26.0           ~ 25 0
66 [KPR2004b] 294 OpC 11 38.1 -63 21           ~ 20 0
67 HD 104565 s*b 12 02 27.7963615668 -58 14 34.357788781 9 9.55 9.27 9.65   OC9.7Iab 44 0
68 V* EK Cru bL* 12 02 58.4672044147 -62 40 19.216816792 7.37 8.10 8.11     B1V 28 0
69 HD 105056 s*b 12 05 49.8805966991 -69 34 22.993604342 6.57 9.07 8.74 8.45   ON9.7Iae 122 1
70 HD 105627 * 12 09 44.5816285147 -62 34 54.626419143 7.31 8.21 8.19 9.05   O9III 72 0
71 [KPR2004b] 317 OpC 12 53 01 -60 46.0           ~ 20 0
72 HD 112244 s*b 12 55 57.1346044550 -56 50 08.891958192 4.49 5.33 5.32 5.21 5.21 O8.5Iab(f)p 198 0
73 Cl Loden 821 OpC 13 24 21 -59 44.0           ~ 19 0
74 HD 116852 * 13 30 23.5190459533 -78 51 20.544585252 8.29 8.38 8.47     O8.5II-III((f)) 137 1
75 HD 117856 * 13 34 43.40546 -63 20 07.6319 6.92 8.97 8.90 8.29   O9.7II-III 47 0
76 [KPR2005] 75 OpC 13 47 10 -62 25.2           ~ 13 0
77 HD 120521 * 13 51 33.9825168197 -58 32 22.270931775 8.06 8.79 8.58 9.33   O7.5Ib(f) 54 0
78 HD 120678 Em* 13 52 56.4133085414 -62 43 14.259143108 7.04 9.45 8.20 9.02   O9.5Ve 68 1
79 HD 123056 * 14 07 25.6377162147 -60 28 14.148538108 7.54 8.28 8.14 9.00   O9.5IV(n) 57 0
80 HD 123008 s*b 14 07 30.6440577747 -64 28 08.780113899 8.58 10.00 9.50 9.44   ON9.2Iab 101 0
81 HD 125206 * 14 20 09.0397646122 -61 04 54.620330264 7.47 8.18 7.92 8.89   O9.7IVn 63 1
82 NGC 5606 OpC 14 27 47 -59 38.4           ~ 92 0
83 * del Cir SB* 15 16 56.8969460249 -60 57 26.100998940 4.11 5.03 5.09 6.68   O8V 148 0
84 HD 135591 * 15 18 49.1429870266 -60 29 46.794326631 4.46 5.36 5.46 6.91   O8IV((f)) 150 0
85 [KPR2005] 79 OpC 15 19 12 -60 43.8           ~ 24 0
86 HD 148546 Pu* 16 30 23.3125428650 -37 58 21.171380715 7.28 7.99 7.71 8.58   O9Iab 79 0
87 Cl Hogg 22 OpC 16 46 37 -47 05.0           ~ 63 0
88 NGC 6231 OpC 16 54 08.51 -41 49 36.0   2.83 2.6     ~ 491 0
89 C 1652-405 OpC 16 56 11 -40 40.0           ~ 25 0
90 HD 153426 * 17 01 13.0075706903 -38 12 11.888514524 6.79 7.61 7.47 8.49   O8.5III 90 0
91 HD 153919 HXB 17 03 56.7728262865 -37 50 38.912077679 6.06 6.78 6.51 6.08 5.90 O6Iafcp 765 1
92 HD 154368 s*b 17 06 28.3687923960 -35 27 03.759955171 6.10 6.63 6.13 7.12   O9.5Iab 269 0
93 [KPR2005] 88 OpC 17 06 47 -35 36.0           ~ 24 0
94 HD 154643 * 17 08 13.9816706301 -35 00 15.670543148 6.76 7.42 7.20 8.23   O9.7III 49 1
95 HD 154811 * 17 09 53.0868663445 -47 01 53.192207532 6.71 7.32 6.98 7.71   OC9.7Ib 80 0
96 Ass Sco OB 4 As* 17 12.6 -33 22           ~ 42 0
97 HD 156212 * 17 17 27.5962543693 -27 46 00.807517199 7.91 9.13 8.74 8.80   B0Iab 53 0
98 HD 157857 Em* 17 26 17.3320365674 -10 59 34.785692564 7.16 7.95 7.78     O6.5II(f) 160 0
99 V* V1081 Sco Al* 17 29 12.9251873752 -31 32 03.426713313 6.22 7.07 7.04 7.93   O9.5V(n) 83 0
100 Cl Trumpler 28 OpC 17 37 00 -32 29.0           ~ 43 0
101 GAL 000.0+00.0 gam 17 45 39.60213 -29 00 22.0000           ~ 12014 0
102 HD 161853 ** 17 49 16.5580430857 -31 15 18.070335520 7.48 8.11 7.97 8.81   O8V(n)z+B 72 2
103 [KPR2005] 93 OpC 18 08 13 -22 15.6           ~ 17 0
104 HD 166734 s*b 18 12 24.6552422490 -10 43 53.059483541 9.36 9.49 8.42 7.33 6.47 O7.5Iabf 162 0
105 NGC 6604 OpC 18 18 03 -12 14.5           ~ 122 0
106 M 16 OpC 18 18 48 -13 48.4   6.58 6.0     ~ 957 2
107 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1509 0
108 V* RY Sct Be* 18 25 31.4772031860 -12 41 24.196044092 10.25 10.38 9.12 9.46   O9.7Ibep 287 1
109 HD 169582 s*b 18 25 43.1467026751 -09 45 11.036987380 8.74 9.24 8.70     O6Iaf 84 0
110 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
111 HD 175754 Em* 18 57 35.7086008504 -19 09 11.269005090 5.99 6.96 7.03     O8II(n)((f))p 141 0
112 HD 175876 * 18 58 10.7660968929 -20 25 25.544115183 5.79 6.82 6.94 6.93   O6.5III(n)(f) 143 0
113 C 1943+238 OpC 19 45 24 +23 55.0           ~ 26 0
114 HD 188209 s*b 19 51 59.0685711923 +47 01 38.420250587 4.61 5.55 5.63 5.54 5.64 O9.5Iab 293 0
115 * 9 Sge s*b 19 52 21.7651155105 +18 40 18.753390402 5.32 6.24 6.23     O7.5Iabf 277 1
116 HD 189957 * 20 01 00.0042530904 +42 00 30.818892996 6.93 7.84 7.82     O9.7III 94 0
117 NGC 6871 OpC 20 05 59 +35 46.6   5.43 5.2     ~ 202 0
118 V* V2011 Cyg SB* 20 12 33.1205906584 +40 16 05.442931142 7.32 7.85 7.55     O4.5V(n)((f)) 198 0
119 Cl Collinder 419 OpC 20 18 07 +40 43.9           ~ 34 0
120 Cl Berkeley 86 OpC 20 20 12 +38 41.4           ~ 109 0
121 M 29 OpC 20 23 56 +38 31.4   7.30 6.6     ~ 225 0
122 HD 195592 s*b 20 30 34.9690436039 +44 18 54.858025184 7.75 7.95 7.08 6.29 5.60 O9.7Ia 199 1
123 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 819 0
124 V* Y Cyg Al* 20 52 03.5773450587 +34 39 27.481355846 6.31 7.23 7.32     O9.5IV+O9.5IV 359 1
125 HD 201345 * 21 07 55.4153633777 +33 23 49.226678368   7.611 7.764     ON9.2IV 162 0
126 * 68 Cyg SB* 21 18 27.1855667264 +43 56 45.388423736 4.05 4.99 5.00     O7.5IIIn((f)) 361 0
127 [KPR2005] 120 OpC 22 30 36 +57 12.6           ~ 16 0
128 HD 218915 s*b 23 11 06.9480376287 +53 03 29.651927910 6.32 7.22 7.20     O9.2Iab 186 1

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2021.03.08-19:39:09

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