2007ApJS..169..105M

Query : 2007ApJS..169..105M

2007ApJS..169..105M - Astrophys. J., Suppl. Ser., 169, 105-119 (2007/March-0)

Unraveling the origins of nearby young stars.

MAKAROV V.V.

Abstract (from CDS):

A systematic search for close conjunctions and clusterings in the past of nearby stars younger than the Pleiades is undertaken, which may reveal the time, location, and mechanism of formation of these often isolated, disconnected from clusters and star-forming regions, objects. The sample under investigation includes 101 T Tauri, post-TT, and main-sequence stars and stellar systems with signs of youth, culled from the literature. Their Galactic orbits are traced back in time and near approaches are evaluated in time, distance, and relative velocity. Numerous clustering events are detected, providing clues to the origin of very young, isolated stars. Each star's orbit is also matched with those of nearby young open clusters, OB and TT associations and star-forming molecular clouds, including the Ophiuchus, Lupus, Corona Australis, and Chamaeleon regions. Ejection of young stars from open clusters is ruled out for nearly all investigated objects, but the nearest OB associations in Scorpius-Centaurus, and especially, the dense clouds in Ophiuchus and Corona Australis have likely played a major role in the generation of the local streams (TWA, Beta Pic, and Tucana-Horologium) that happen to be close to the Sun today. The core of the Tucana-Horologium association probably originated from the vicinity of the Upper Scorpius association 28 Myr ago. A few proposed members of the AB Dor moving group were in conjunction with the coeval Cepheus OB6 association 38 Myr ago.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: General - Galaxy: Open Clusters and Associations: General - Stars: Kinematics

Simbad objects: 150

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Number of rows : 150
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 NAME THA MGr 00 00 -62.0           ~ 540 0
2 Cl Blanco 1 OpC 00 03 04.1 -29 48 55           ~ 380 0
3 HD 105 PM* 00 05 52.5447817152 -41 45 11.044988352   8.13 7.53     G0V 203 0
4 HD 203 PM* 00 06 50.0863238088 -23 06 27.145662264   6.547 6.173   5.74 F3V 140 0
5 HD 987 PM* 00 13 53.0108292528 -74 41 17.850099516   9.48 8.724   7.933 G8V 122 0
6 HD 1466 PM* 00 18 26.1235857360 -63 28 38.980983432   8.00 7.46     F8V 138 0
7 HD 2775 * 00 31 33.3732136128 +39 19 52.663743552   9.36 8.82     F5 13 0
8 * bet03 Tuc ** 00 32 43.9053745704 -63 01 53.402028960 5.15 5.13 5.09     A0V 139 0
9 HD 3221 SB* 00 34 51.2017857192 -61 54 58.128126444   10.83 9.604   8.238 K4Ve 99 0
10 HD 4367 * 00 45 47.5297880016 -30 39 49.846063716   9.36 8.80     G0V 29 0
11 HD 8558 PM* 01 23 21.2547930336 -57 28 50.688846336   9.21 8.543   7.773 G7V 102 0
12 V* CC Phe PM* 01 28 08.6607223056 -52 38 19.144933512   9.98 9.07     K1V 103 0
13 V* DK Cet PM* 01 57 48.9775849512 -21 54 05.341104000   8.73 8.057   7.343 G4V 152 0
14 HD 13183 SB* 02 07 18.0601078272 -53 11 56.531423652   9.34 8.65   7.87 G7V 99 0
15 HD 13246 PM* 02 07 26.1250439520 -59 40 45.941799000   8.02 7.50     F7V 101 1
16 HD 13482 ** 02 12 15.41003 +23 57 29.5301   9.01 8.75 8.44   K1III-IV 71 0
17 HD 14082B BY* 02 17 24.7369490496 +28 44 30.411007188   8.33 7.74     G3 123 0
18 HD 14082 BY* 02 17 25.2869702592 +28 44 42.145069812   7.545 7.031 8.04   F2 137 0
19 BD+30 397 PM* 02 27 29.2543096632 +30 58 24.596323968   11.3 10.12 9.32 8.78 K7V 124 1
20 * eps Hyi PM* 02 39 35.3616474335 -68 16 01.008064791 3.91 4.047 4.096     B9Va 133 0
21 HD 16760 ** 02 42 21.3134499936 +38 37 07.231908072   9.45 8.76     G2V 96 1
22 HD 17332 ** 02 47 27.42146 +19 22 18.5443           G1V+G5V 103 0
23 MBM 12 MoC 02 56 50 +19 32.0           ~ 230 1
24 HD 19545 PM* 03 07 50.8499336856 -27 49 52.144200912   6.338 6.170     A3V 64 0
25 V* IS Eri BY* 03 09 42.2876014080 -09 34 46.583173740   9.27 8.49   7.64 G8/K0V 120 0
26 BD+21 418B PM* 03 11 12.3210862222 +22 25 22.571229275   11.6 10.6     K3V 39 0
27 BD+21 418 PM* 03 11 13.8420908448 +22 24 57.113183340   9.14 8.51 8.61   G5 68 0
28 HD 20385 ** 03 16 40.6680674884 -03 31 48.926609472   7.99 7.49     F6V 60 0
29 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
30 HD 21845 PM* 03 33 13.4905810704 +46 15 26.546978484   8.963 8.250 7.8 7.34 K2 104 0
31 HD 22705 SB* 03 36 53.4019969800 -49 57 28.871978688   8.22 7.62   6.96 G2V 85 0
32 Ass Per OB 2 As* 03 42.2 +33 26           ~ 350 0
33 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
34 HD 23965 PM* 03 50 03.4619373216 +22 35 29.895078408       7.0   F7 48 0
35 HD 25457 TT* 04 02 36.7442719512 -00 16 08.119921152   5.88 5.38     F7V 293 0
36 HD 284149 TT* 04 06 38.7981157344 +20 18 11.151888084   10.21 9.63     F8 59 0
37 HD 25953 PM* 04 06 41.5332077256 +01 41 02.078668860   8.32 7.82     F6V 71 1
38 * 50 Per RS* 04 08 36.6171573432 +38 02 23.058806100 7.78 5.97   5.2   F8V 238 0
39 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1456 1
40 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
41 NAME TAU-AUR T ASSOC Cl* 04 32 33 +26 04.6           ~ 48 0
42 * 51 Eri PM* 04 37 36.1326090888 -02 28 24.775726260   5.486 5.209     F0IV 285 0
43 HD 283798 TT* 04 41 55.1542944840 +26 58 49.419533856   10.21 9.55     G2 55 0
44 HD 32195 PM* 04 48 05.1761479440 -80 46 45.262920468   8.67 8.155   7.541 F7V 78 0
45 V* V1005 Ori BY* 04 59 34.8342878424 +01 47 00.669818328   11.48 10.107 9.603 8.239 M0Ve 371 0
46 CD-57 1054 PM* 05 00 47.1296589456 -57 15 25.452888732   11.36 9.977 9.889 8.177 M0Ve 143 0
47 * iot Lep ** 05 12 17.9105854648 -11 52 08.763279736 3.95 4.35 4.45     B7.5Vn 119 0
48 V* AS Col RS* 05 20 38.0482052304 -39 45 17.797423968   7.89 7.38   6.81 F6V 82 1
49 V* AF Lep RS* 05 27 04.7633281608 -11 54 03.466002240   6.832 6.295     F8V(n)k: 285 0
50 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1080 0
51 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1708 1
52 V* UY Pic RS* 05 36 56.8528399368 -47 57 52.883969472   8.77 7.676   6.699 K0V 147 0
53 NAME sig Ori Cluster OpC 05 38 42 -02 36.0           ~ 623 0
54 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
55 HD 40216 * 05 55 43.1621436480 -38 06 16.259593752   7.95 7.47     F7V 70 1
56 HD 41067 * 06 01 47.1738651384 -25 50 17.993959476   10.02 9.14     K0III 19 0
57 HD 41842 * 06 06 16.6150494576 -27 54 20.983891536   9.86 8.98     K1V 55 0
58 V* AO Men PM* 06 18 28.2078302088 -72 02 41.447954904   11.06 9.809 9.299 8.456 K4Ve 153 0
59 V* V1358 Ori BY* 06 19 08.0574987312 -03 26 20.361237864   8.52 7.95     G0V 128 0
60 HD 44627 Er* 06 19 12.9130449912 -58 03 15.527294208   10.01 9.205   8.185 K1V(e) 207 1
61 HD 45270 PM* 06 22 30.9408581256 -60 13 07.147057296 7.186 7.11 6.508   5.87 G1V 134 0
62 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
63 HD 48189 BY* 06 38 00.3532489704 -61 32 00.114167796         5.46 G1VCH-0.5 152 0
64 CD-61 1439 PM* 06 39 50.0234724000 -61 28 41.530139940 12.224 11.043 9.746 9.11 8.223 K7V(e) 89 0
65 HD 49855 PM* 06 43 46.2456407136 -71 58 35.390963928   9.63 9.055   8.259 G6V 92 0
66 HD 53842 PM* 06 46 13.5367594104 -83 59 29.517958896   7.90 7.46     F5V 85 0
67 Cl Collinder 121 OpC 06 56 20 -24 43.8   3.02 2.6     ~ 156 0
68 Cl Collinder 135 OpC 07 17 23.6 -36 57 23           ~ 124 0
69 Cl Collinder 140 OpC 07 23 23.9 -31 58 15           ~ 154 0
70 NGC 2422 OpC 07 36 35.8 -14 30 15           ~ 275 0
71 NGC 2451 Cl* 07 45.4 -37 58           ~ 165 1
72 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
73 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 307 0
74 NGC 2547 OpC 08 10 01.5 -49 12 08           ~ 445 0
75 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
76 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
77 Cl Mamajek 1 OpC 08 42 32.9 -78 57 47           ~ 392 0
78 * 9 Cha SB* 08 43 12.1984130688 -79 04 12.368512452   6.28 6.07     A7V 242 0
79 Cl Trumpler 10 OpC 08 47 46.4 -42 31 52           ~ 203 0
80 HD 77407 PM* 09 03 27.0837288552 +37 50 27.493558584   7.63 7.04     G0V 110 0
81 HD 86612 Be* 09 59 06.3044206872 -23 57 02.767063320 5.51 6.13 6.25 6.14 6.19 B5IVe 104 0
82 Cl VDBH 99 OpC 10 38 23.9 -59 09 28           ~ 91 0
83 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
84 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
85 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
86 NGC 3532 OpC 11 05 33.9 -58 42 13           ~ 414 0
87 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
88 HD 98800 TT* 11 22 05.28975 -24 46 39.7571   10.20 9.28 9.26 7.386 K5V(e) 401 0
89 HD 99827 TT* 11 25 17.7399826296 -84 57 16.359618801   8.08 7.64     F5V 54 0
90 HD 102458 Or* 11 47 24.5438206248 -49 53 03.018484572   9.70 9.07   8.40 G4V 102 0
91 CD-36 7429A TT* 11 48 24.2227406904 -37 28 49.114270524   12.54 11.17 10.92 9.552 K5V 145 0
92 CD-36 7429 ** 11 48 24.22320 -37 28 49.1537           ~ 98 0
93 CPD-75 783 TT* 12 07 51.174576 -75 55 16.05828   11.16 10.04 9.90 8.584 K4(e) 22 0
94 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
95 HD 106906 * 12 17 53.1915103944 -55 58 31.893027240   8.95 8.89 8.46   F5V 179 0
96 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 565 1
97 HD 108574 PM* 12 28 04.4448448032 +44 47 39.516497484   7.98 7.43 7.1   F9V 72 0
98 HD 109573 TT* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774   5.81 A0V 684 1
99 NAME Cha II MoC 12 54 -77.2           ~ 361 0
100 V* PX Vir BY* 13 03 49.6546871 -05 09 42.517119 9.042 8.555 7.679 7.185 6.721 K1V 140 0
101 V* V966 Cen Or* 13 25 47.8321566936 -48 14 57.846569964   10.37 9.77     G2V 48 0
102 HD 125912 * 14 23 37.8770562 -43 57 42.857587   8.72 8.13     F7V 39 1
103 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 894 0
104 V* EK Dra BY* 14 39 00.2104038120 +64 17 29.979649860   8.243 7.604     G5VFe-0.7CH-1(k) 500 0
105 HD 135363 Y*O 15 07 56.2473941616 +76 12 02.719373904       8.1   G5V+M2V-M4V 76 0
106 NAME Upper Centaurus Lupus MGr 15 24 -41.9           ~ 567 1
107 HD 138994 SB* 15 36 53.4913585944 -38 10 51.031892460   8.57 8.19     F2V 36 1
108 HD 139084 SB* 15 38 57.5566916952 -57 42 27.346084668   8.78 7.977   7.106 K0V 174 0
109 V* KW Lup TT* 15 45 47.6002137432 -30 20 55.746457152   10.34 9.37   7.956 K2V 77 0
110 NAME Lupus Complex SFR 16 03 -38.1           ~ 851 0
111 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
112 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
113 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
114 LDN 1709 DNe 16 31 34.8 -24 02 55           ~ 84 0
115 HD 152041 Ro* 16 52 41.7114937632 -38 45 37.251673020   9.31 8.881   8.346 F3V 46 0
116 HD 152555 PM* 16 54 08.1433547448 -04 20 24.661056912   8.42 7.82     F8/G0V 106 0
117 BAX 258.1082-23.3759 ClG 17 12 26.3 -23 21 38           ~ 303 0
118 HD 155555 RS* 17 17 25.5053342232 -66 57 03.732141636 7.795 7.499 6.723   6.39 G5V+K1V 292 1
119 HD 160934 Er* 17 38 39.6170537492 +61 14 16.102424643   11.34 10.15   8.99 K7Ve 107 0
120 IC 4665 OpC 17 46 04.0 +05 36 54           ~ 407 0
121 NGC 6475 OpC 17 53 44.1 -34 49 36           ~ 413 0
122 HD 163296 Ae* 17 56 21.2881851168 -21 57 21.871819008 7.00 6.93 6.85 6.86 6.67 A3VaekA1mA1 1301 0
123 HD 164249 PM* 18 03 03.4097283792 -51 38 56.432149872   7.438 7.007 7.90   F6V 142 0
124 IC 4756 OpC 18 38 39.0 +05 26 14           ~ 274 0
125 HD 172555 PM* 18 45 26.9009806435 -64 52 16.534807985   4.967 4.767     A7V 321 0
126 V* PZ Tel BY* 18 53 05.8735056984 -50 10 49.897437168   9.22 8.342   7.464 G9IV 364 0
127 NAME del Lyr Cluster OpC 18 54 11.2 +36 53 54   4.58 3.8     ~ 97 0
128 NAME Coronet Cluster Cl* 19 01 54 -36 57.2           ~ 106 1
129 * rho Tel SB* 19 06 19.9561471392 -52 20 27.280858848   5.700 5.174     F6V 85 0
130 HD 182734 * 19 22 54.5784736512 +57 00 59.716021860   9.46 8.14     K5 16 0
131 HD 181327 PM* 19 22 58.9437222504 -54 32 16.975668624   7.50 7.04   6.49 F6V 331 0
132 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 371 0
133 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1344 0
134 V* BO Mic BY* 20 47 45.0056152368 -36 35 40.769832192   10.39 9.337   8.216 K3V(e) 214 0
135 HD 202917 PM* 21 20 49.9576157736 -53 02 03.155667216   9.32 8.67   7.882 G7V 191 0
136 V* BS Ind SB* 21 20 59.8038697752 -52 28 40.207860948   10.70 8.900   7.893 G9V 81 0
137 NGC 7092 OpC 21 31 04.0 +48 17 47           ~ 245 0
138 Ass Cep OB 2 As* 21 51 +60.0           ~ 303 0
139 HD 207575 PM* 21 52 09.7248858144 -62 03 08.506270296   7.72 7.23     F6V 93 0
140 HD 207964 ** 21 55 11.39417 -61 53 11.7947   6.37 5.96     F0(V)+F5(V) 95 1
141 Wolf 1225 ** 22 23 29.09743 +32 27 33.9152       10.26   M3.0V 111 0
142 Ass Cep OB 6 As* 22 30 +58.0           ~ 46 0
143 NAME I Lac As* 22 41 +38.5           ~ 158 0
144 HD 217343 PM* 23 00 19.2868499184 -26 09 13.504347252   8.12 7.48   6.75 G5V 122 0
145 MCC 858 PM* 23 06 04.8465138840 +63 55 34.356579420   12.34 10.96 10.37 9.10 M0.3V 98 0
146 HD 218860 PM* 23 11 52.0534851600 -45 08 10.631426784   9.52 8.782   7.930 G8V 85 0
147 HD 220140 RS* 23 19 26.6385316003 +79 00 12.673018448   8.43 7.54 7.17 6.76 G9V 165 1
148 BD+41 4749 PM* 23 19 39.5615401608 +42 15 09.834862140   9.67 8.93     G0 54 1
149 HD 222259A RS* 23 39 39.4808078664 -69 11 44.707735104   9.161 8.226 9.28 7.352 G6V 190 0
150 HD 224228 PM* 23 56 10.6732330776 -39 03 08.409504852 9.977 9.21 8.225 7.669 7.194 K2V 98 0

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