2001A&A...365...49H

Query : 2001A&A...365...49H

2001A&A...365...49H - Astronomy and Astrophysics, volume 36549-77 (2001/1-2)

On the origin of the O and B-type stars with high velocities. II. Runaway stars and pulsars ejected from the nearby young stellar groups.

HOOGERWERF R., DE BRUIJNE J.H.J. and DE ZEEUW P.T.

Abstract (from CDS):

We use milli-arcsecond accuracy astrometry (proper motions and parallaxes) from Hipparcos and from radio observations to retrace the orbits of 56 runaway stars and nine compact objects with distances less than 700 pc, to identify the parent stellar group. It is possible to deduce the specific formation scenario with near certainty for two cases. (i) We find that the runaway star ζ Ophiuchi and the pulsar PSR J1932+1059 originated about 1 Myr ago in a supernova explosion in a binary in the Upper Scorpius subgroup of the Sco OB2 association. The pulsar received a kick velocity of ∼350km/s in this event, which dissociated the binary, and gave ζ Oph its large space velocity. (ii) Blaauw & Morgan (1954ApJ...119..625B) and Gies & Bolton (1987ApJS...64..545G) already postulated a common origin for the runaway-pair AE Aur and µ Col, possibly involving the massive highly-eccentric binary ι Ori, based on their equal and opposite velocities. We demonstrate that these three objects indeed occupied a very small volume ∼2.5Myr ago, and show that they were ejected from the nascent Trapezium cluster. We identify the parent group for two more pulsars: both likely originate in the ∼50Myr old association Per OB3, which contains the open cluster α Persei. At least 21 of the 56 runaway stars in our sample can be linked to the nearby associations and young open clusters. These include the classical runaways 53 Arietis (Ori OB1), ξ Persei (Per OB2), and λ Cephei (Cep OB3), and fifteen new identifications, amongst which a pair of stars running away in opposite directions from the region containing the λ Ori cluster. Other currently nearby runaways and pulsars originated beyond 700pc, where our knowledge of the parent groups is very incomplete.

Abstract Copyright: ∼

Journal keyword(s): Astrometry - stars: early-type - stars: kinematics - pulsars: general - supernova: general

Simbad objects: 108

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Number of rows : 108
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 * 68 Cas Pu* 00 44 26.1915514056 +47 51 50.342883408   5.520 5.648     B5V 113 0
2 * nu. And SB* 00 49 48.8463243776 +41 04 44.079221948 3.80 4.38 4.53 4.56 4.71 B5V 229 0
3 HD 12707 PM* 02 02 42.7522688880 -57 35 41.081999748   8.71 8.80     B6V 25 0
4 HD 14220 * 02 19 37.7904808824 +52 33 40.984973532   7.119 7.186     B2V 44 0
5 Cl Mrk 6 OpC 02 29 31.0 +60 35 39   7.53 7.1     ~ 72 0
6 * 53 Ari bC* 03 07 25.6731510240 +17 52 47.969633820 5.18 5.997 6.117     B1.5V 146 1
7 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
8 Ass Per OB 3 As* 03 27 48.5 +49 54 02   15.36 13.93     ~ 40 0
9 Ass Per OB 2 As* 03 42.2 +33 26           ~ 350 0
10 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
11 * ksi Per ** 03 58 57.9024302099 +35 47 27.709515737 3.190 4.080 4.060 3.88 3.89 O7.5III(n)((f)) 850 0
12 NGC 1499 HII 04 03 18 +36 25.3           ~ 179 0
13 HD 26684 * 04 21 19.6145139864 +76 06 21.972514032 6.2 6.681 6.741     B5 32 0
14 HD 30112 PM* 04 44 42.1308733536 +00 34 05.143875132   7.05 7.22     B3/5V 45 0
15 V* AE Aur Or* 05 16 18.1493304816 +34 18 44.344404000 5.48 6.18 5.96     O9.5V 597 1
16 Ass Ori OB 1b As* 05 34.0 -01 30           ~ 281 0
17 * lam Ori ** 05 35 08.27761 +09 56 02.9611 2.45 3.48 3.66 3.72 3.89 O8IIIf+B0.5V 327 0
18 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1708 1
19 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
20 Ass Ori OB 1c As* 05 35 21 -05 20.5           ~ 142 1
21 * iot Ori SB* 05 35 25.9861932063 -05 54 35.598684624 1.45 2.53 2.77     O9IIIvar 793 0
22 Cl Collinder 69 OpC 05 35 32.1 +09 44 02     2.8     ~ 369 0
23 NAME Ori I As* 05 38 -02.8           ~ 653 0
24 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
25 * mu. Col V* 05 45 59.8950238944 -32 18 23.162261796 3.84 4.90 5.18 5.30 5.57 O9.5V 523 0
26 * 72 Col ** 06 04 20.2652600736 -32 10 20.744923584   5.451 5.631     B2V 89 0
27 HD 43112 * 06 15 08.4727512648 +13 51 03.959285616 4.7 5.676 5.894     B1V 126 0
28 HD 44506 Be* 06 20 36.2397908688 -34 08 38.916868416 4.46 5.336 5.521     B3V 82 0
29 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
30 PSR J0633+1746 Psr 06 33 54.153 +17 46 12.91           ~ 1308 0
31 Cl Collinder 121 OpC 06 56 20 -24 43.8   3.02 2.6     ~ 156 0
32 Cl Collinder 135 OpC 07 17 23.6 -36 57 23           ~ 124 0
33 Cl Collinder 140 OpC 07 23 23.9 -31 58 15           ~ 154 0
34 HD 58343 Be* 07 24 40.1873324160 -16 12 05.302248804 4.52 5.15 5.19 5.05 5.06 B2Vne 222 0
35 HD 59215 Pu* 07 27 49.4128281795 -28 22 16.334931060   6.93 7.07     B5V 31 0
36 * b Pup SB* 07 52 38.6468966196 -38 51 46.132587329 3.61 4.301 4.474     B2V 122 0
37 * J Pup s*b 07 53 18.1574768969 -48 06 10.566474468 3.11 4.10 4.24 4.26 4.38 B0.5Ib 249 0
38 * zet Pup BY* 08 03 35.04754 -40 00 11.3321 0.89 1.98 2.25 2.36 2.58 O4I(n)fp 1190 1
39 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 307 0
40 HD 69080 SB* 08 14 11.0344171056 -32 08 26.564080128 5.20 5.91 6.06     B2V 64 0
41 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
42 HD 73105 * 08 34 09.5861621088 -53 04 17.419717092   6.670 6.777     B3V 32 0
43 Cl Pismis 4 OpC 08 35 09.6 -44 25 26   6.16 5.9     ~ 83 0
44 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
45 Cl Pismis 5 OpC 08 37 37.1 -39 35 23           ~ 48 0
46 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
47 HD 75222 s*b 08 47 25.1378783304 -36 45 02.670440616 7.24 7.80 7.42 8.22   O9.7Iab 102 0
48 Cl Trumpler 10 OpC 08 47 46.4 -42 31 52           ~ 203 0
49 HD 78584 * 09 17 12.0478648440 +79 16 51.968800812   8.04 8.20     B3 28 0
50 HD 83979 * 09 33 53.3753648154 -80 56 28.528679937 4.4 4.919 5.059     B4IV 66 0
51 * L Vel * 09 34 08.7934716637 -51 15 18.958114695 4.04 5.01 5.03     B2IV 67 0
52 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
53 HD 86606 s*b 09 56 09.7331422080 -71 23 21.479957520 5.33 6.219 6.330     B1Ib 66 1
54 HD 86612 Be* 09 59 06.3044206872 -23 57 02.767063320 5.51 6.13 6.25 6.14 6.19 B5IVe 104 0
55 HD 88661 Be* 10 11 46.4595963216 -58 03 37.958712444 4.77 5.66 5.75 5.66 5.70 B5Vne 161 0
56 Cl VDBH 99 OpC 10 38 23.9 -59 09 28           ~ 91 0
57 HD 92464 V* 10 39 22.9025400696 -55 59 23.295632856   6.987 7.099     B4V 28 0
58 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
59 IC 2603 * 10 48 25.3628 +32 55 38.313           ~ 3 0
60 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 154 0
61 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
62 * j Cen Be* 11 49 41.0673344112 -63 47 18.500667000 3.58 4.160 4.308     B3V 125 0
63 HD 106231 * 12 13 25.0368397800 -38 55 45.068771388   5.610 5.750     B4III 41 0
64 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 565 1
65 BD+25 2534 HS* 12 37 23.5161671712 +25 03 59.867922240 9.117 10.26 10.59 10.642 10.809 sdB1(k) 268 0
66 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
67 * bet Mus ** 12 46 16.80410 -68 06 29.2164 2.13     5.51   B2V+B3V 129 0
68 HD 118450 PM* 13 38 09.0092381568 -50 20 59.699829588   6.543 6.632     B5II 30 0
69 V* V716 Cen EB* 14 13 39.8236757256 -54 37 32.261966328   6.13 6.09     B5V 75 0
70 * tau01 Lup bC* 14 26 08.2244287979 -45 13 17.123883210 3.68 4.393 4.553     B2IV 158 0
71 PSR B1451-68 Psr 14 56 00.0175876848 -68 43 40.034742348           ~ 203 0
72 NAME Upper Centaurus Lupus MGr 15 24 -41.9           ~ 567 1
73 * kap01 Aps Be* 15 31 30.8221293192 -73 23 22.529543604 4.60 5.37 5.49     B2Vnpe 126 0
74 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
75 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1908 0
76 HD 150898 s*b 16 47 19.6583362032 -58 20 29.199122664 4.70 5.55 5.61 5.61 5.62 B0Ib 138 0
77 HD 152478 Be* 16 56 08.8420101600 -50 40 29.242895268 5.64 6.31 6.33     B3Vnpe 96 0
78 HD 161056 * 17 43 47.0221609752 -07 04 46.594311996 6.26 6.68 6.32 5.94 5.67 B3II/III 201 0
79 IC 4665 OpC 17 46 04.0 +05 36 54           ~ 407 0
80 Cl Melotte 186 OpC 18 02 20.8 +03 25 52           ~ 89 0
81 HD 172488 * 18 40 48.0509874696 -08 43 07.690358568 7.76 8.16 7.62     B0Iab/b 78 0
82 * lam Pav Be* 18 52 13.0338312065 -62 11 15.327318320 3.19 4.048 4.207     B2Ve 159 0
83 NAME del Lyr Cluster OpC 18 54 11.2 +36 53 54   4.58 3.8     ~ 97 0
84 RX J1856.6-3754 Psr 18 56 35.11 -37 54 30.5     25.7     ~ 456 0
85 HD 180183 * 19 18 41.5435152024 -56 08 40.895002248 5.90 6.66 6.82     B2V 51 0
86 HD 181409 * 19 19 03.7406006640 +33 23 19.713915816 5.51 6.394 6.586     B2V 63 0
87 * 7 Vul Be* 19 29 20.8977162984 +20 16 47.065594296   6.226 6.326     B5Vn 59 1
88 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
89 HD 338529 PM* 19 32 31.9104668184 +26 23 26.117367216   9.72   9.2   B5 213 0
90 HD 188252 Pu* 19 52 07.1662436976 +47 55 54.461806320 4.87 5.722 5.897     B2III 84 0
91 HD 188439 Pu* 19 53 01.2463552968 +47 48 27.793662768 5.24 6.147 6.279     B0.5IIIn 111 1
92 Cl Roslund 5 OpC 20 10 30.5 +33 46 04           ~ 62 0
93 HD 192575 bC? 20 10 56.9106752088 +68 16 19.976875932 6.360 6.990 6.840     B0.5V 56 0
94 V* V2011 Cyg SB* 20 12 33.1203741480 +40 16 05.445674868 7.32 7.85 7.55     O4.5V(n)((f)) 221 0
95 HD 195965 * 20 32 25.5891987312 +48 12 59.317612308 6.03 6.899 6.974     B0.2Vn 119 0
96 HD 197911 * 20 43 21.6055381800 +63 12 32.841808344 6.95 7.66 7.67     B5 32 0
97 HD 198766 * 20 54 35.1076796328 -50 43 38.433199224   6.103 6.219     B5IV 29 0
98 * 69 Cyg s*b 21 25 47.0250895464 +36 40 02.584183260 4.89 5.86 5.94     B0.2Iab 207 0
99 HD 205618 Be* 21 35 44.4770094600 +29 44 43.892316780 7.25 8.13 8.16     B2Vne 49 0
100 Ass Cep OB 2 As* 21 51 +60.0           ~ 303 0
101 * lam Cep s*b 22 11 30.5765111040 +59 24 52.154264880 4.55 5.29 5.05 4.77 4.62 O6.5I(n)fp 705 1
102 Ass Cep OB 6 As* 22 30 +58.0           ~ 46 0
103 NAME I Lac As* 22 41 +38.5           ~ 158 0
104 BD+61 2365 Y*O 22 54 18.0388647744 +62 39 55.135306224 9.27 9.59 9.2     B5 37 0
105 HD 217086 Y*O 22 56 47.1887590800 +62 43 37.657173900 7.88 8.30 7.66 8.35   O7Vnn((f))z 263 0
106 NAME III CEP ASSOC As* 23 04.2 +63 24           ~ 332 0
107 NAME Vel R2 As* ~ ~           ~ 4 0
108 Ass Ori OB 1a As* ~ ~           ~ 237 0

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