2014A&A...567A..52K


Query : 2014A&A...567A..52K

2014A&A...567A..52K - Astronomy and Astrophysics, volume 567A, 52-52 (2014/7-1)

Reliable probabilistic determination of membership in stellar kinematic groups in the young disk.

KLUTSCH A., FREIRE FERRERO R., GUILLOUT P., FRASCA A., MARILLI E. and MONTES D.

Abstract (from CDS):

Over the last century, the overdensities in the velocity distributions of nearby stars were attributed to stellar kinematic groups or moving groups. Although their reality was initially questioned, their existence is now supported by a confluence of evidence. To pursue investigations, quantitative methods should be clearly defined to identify new stars belonging to these groups. Here, we present two probabilistic methods to determine the likelihood of kinematic membership for possible candidates in five of the known young stellar kinematic groups - namely, Pleiades, IC2391, Castor, Ursa Major, and Hyades - in which all are younger than 650Myr. We tried different methods to handle kinematic data of their known members. We succeeded in developing two independent procedures able to identify new candidates of these five stellar stream. We tested the robustness of our two approaches by means of extensive Monte Carlo simulations. Our methods are consistent with one another in more than 90% of cases and for almost all the stellar kinematic groups under scrutiny. The IC2391 supercluster is an exception. Applying our statistical methods to a large sample of young low-mass stars, we confirmed almost all the likely members and good candidates of these stellar streams. We also proposed 39 additional candidates based on the agreement and the high likelihood of age and kinematic membership. These probabilistic methods are very powerful to reliably identify new candidate members of young stellar kinematic groups. However, the kinematic criteria alone are not sufficient to distinguish between coeval stars that are evaporated from open clusters and other field stars trapped by dynamical processes generated by galactic perturbations. The identification of stars belonging to the remnant of a past star-forming event can be possible with the help of additional information, such as indicators of chromospheric activity, age proxies (lithium abundance), and chemical composition.

Abstract Copyright:

Journal keyword(s): stars: kinematics and dynamics - methods: data analysis - stars: low-mass

VizieR on-line data: <Available at CDS (J/A+A/567/A52): table4.dat>

Simbad objects: 157

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Number of rows : 157
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 2MASS J00034227-2822410 PM* 00 03 42.3029441329 -28 22 41.160114863           M7.0V 20 0
2 G 217-32 ** 00 07 42.5897779320 +60 22 54.034746528   15.083 13.399 12.964   M4.0V 34 1
3 LP 348-40 PM* 00 11 53.0346750552 +22 59 04.593551280   13.20   12.736   M3.5V 34 0
4 LP 149-35 PM* 00 12 57.2011631328 +50 59 17.362233060   18.3   16.0   M6.4V 19 0
5 BPS CS 31060-0015 ** 00 15 58.0735637904 -16 36 57.630725208   14.88 13.18 12.96   M4.1V 23 0
6 G 32-6 BY* 00 16 14.6264889537 +19 51 37.540639238   13.81 12.145 11.899   M4.0V 64 0
7 LP 149-56 ** 00 21 57.851808 +49 12 37.82232   14.37 12.85 12.58   M2.4V 28 0
8 G 172-1 ** 00 28 53.9091058743 +50 22 33.127055200   14.80 13.17 12.815   M3.7V 44 0
9 LP 79-48 PM* 00 35 04.8817764120 +59 53 07.893762792   17.5   15.0   M4.3V 17 0
10 G 69-32 PM* 00 54 48.0816664043 +27 31 03.624729354   16.5   13.7   M4.5V 28 0
11 G 132-51A PM* 01 03 42.0523525968 +40 51 15.941750544   14.66 13.10 13.01 10.5 M2.6V 20 1
12 G 269-153A PM* 01 24 27.6425525376 -33 55 09.416581896           M4.6V 13 0
13 G 269-153 ** 01 24 27.683952 -33 55 08.64300   15.13 13.54 13.04   M4.6V+M4.3V 26 0
14 G 269-153B PM* 01 24 27.7643974752 -33 55 07.960639548     15.50 14.09 12.33 M4.3V 14 0
15 G 172-56 PM* 01 29 12.5828820408 +48 19 35.285934540   16.9   14.9   M5.4V 13 0
16 Barta 161 12 SB* 01 35 13.9246297464 -07 12 51.457318884   14.93 13.43 13.053 10.52 M4.3V 74 0
17 G 271-110 Er* 01 36 55.1765506296 -06 47 38.002431948   15.72 14.00 13.71   M3.5V 57 0
18 LP 768-566 PM* 01 50 27.1090868952 -18 51 36.358301916     15.90 15.44   M5.4V 11 0
19 LP 152-39 PM* 01 58 13.6509858432 +48 44 19.813763796   13.7   12.192   M1.5V 22 0
20 BD+02 305 ** 01 59 12.37950 +03 31 09.2849           M1V+M3V 37 1
21 BD+02 305A PM* 01 59 12.3804416400 +03 31 09.257035152   12.43 10.95 10.84   M1V 42 0
22 Ross 15 Er* 01 59 23.5137039235 +58 31 16.104337813   12.90 12.155 11.871   M4Ve 91 0
23 G 173-39 Er* 02 08 53.6246553758 +49 26 56.437533465   14.02 12.45 12.12   M4.0Ve 70 0
24 LSPM J0218+1218 PM* 02 18 36.5855148024 +12 18 57.603740616   13.91   11.971   M1.9V 22 0
25 G 35-40 Er* 02 19 02.3271896795 +23 52 54.970661689   15.4   13.786   M3.6V 39 0
26 LSPM J0227+4710 PM* 02 27 37.2749175264 +47 10 04.402295436   16.1   14.0   M4.6V 16 0
27 PM J02316+4456 PM* 02 31 39.2790080712 +44 56 38.640965820       14.24   M4.4V 9 0
28 G 36-26 PM* 02 36 44.1275847809 +22 40 26.198863038   16.3   14.0   M5.0V 36 0
29 G 76-19 Er* 02 39 17.3292243825 +07 28 17.139406045   15.1   13.969   M3.7V 29 0
30 LP 247-13 TT* 03 15 37.8502113936 +37 24 14.246652060   14.36   12.823   M2.7V 48 0
31 G 246-33 ** 03 19 28.75488 +61 56 04.6104   15.65   13.73   M4.0V 25 0
32 LSPM J0322+2858 PM* 03 22 31.6733668848 +28 58 29.077518900   17.5   14.4   M4.0V 26 0
33 2MASSW J0335020+234235 LM* 03 35 02.0907239832 +23 42 35.413750692       17.67   M8.5V 56 0
34 RX J0342.5+1216 ** 03 42 31.8234126840 +12 16 22.479814128   16.23   14.44   M5.2V+L0 32 0
35 G 80-21 Er* 03 47 23.3412414313 -01 58 19.947831323 14.052 13.048 11.537 10.452 9.098 M3.0V 126 0
36 V* II Tau Er* 03 49 43.2760877136 +24 19 04.494227808   15.798 14.185 14.021   M4.6V 81 0
37 RX J0413.4-0139 ** 04 13 26.632800 -01 39 21.17124   15.56 13.96 13.62   M5.3V 25 0
38 1RXS J041417.0-090650 EB? 04 14 17.3079121464 -09 06 54.605273184     13.884 13.612 11.107 M4.3V 39 0
39 G 175-32 Er* 04 27 41.3183161248 +59 35 16.562817528   15.5   14.167   M3.8V 29 0
40 StKM 1-497 TT* 04 37 37.4553491592 -02 29 28.950973764   12.04 10.59   8.59 M1.1V 126 0
41 G 39-29A PM* 04 38 12.6524752071 +28 12 59.840668336           M4.0 7 0
42 LP 655-48 LM* 04 40 23.2746368923 -05 30 08.125383990   18.9 17.79 15.72 13.36 M7.5Ve 64 0
43 LP 476-6 PM* 04 44 08.1349255272 +14 01 22.548754236   15.6   13.787   M4.3V 18 0
44 LP 201-108 PM* 04 45 05.6403755471 +43 24 33.972667884   17.32 15.51 15.35   M4.6V 15 0
45 FBS 0444-113 ** 04 46 51.72816 -11 16 47.5932     12.252 11.928   M3.0V 23 0
46 CD-28 1745B SB* 04 47 23.1409094040 -27 50 35.624100912     11.70     M2Ve 16 0
47 G 81-34 ** 04 49 29.524176 +48 28 45.35004   15.137 13.426 13.169   M4.0V 28 0
48 RX J0451.0+3127 PM* 04 51 01.4205787920 +31 27 23.693536152   14.56   13.029   M3.7V 21 0
49 LP 776-25 Er* 04 52 24.4148135160 -16 49 21.926289432   12.76 11.639 11.237 9.1 M3.3V 70 0
50 Ross 388 Er* 05 09 09.9623053679 +15 27 32.916404971   13.98   12.120   M3.5V 46 0
51 LP 717-36 ** 05 25 41.666208 -09 09 12.47904   14.167 12.569 12.257   M3.5V 42 0
52 V* V371 Ori Er* 05 33 44.8000263360 +01 56 43.452872340 13.956 12.51 11.499 10.382 9.072 M3.0Ve 154 0
53 LSPM J0554+1055 PM* 05 54 45.7334317704 +10 55 57.017881992   13.8   12.094   M2.1V 20 0
54 G 192-12 Er* 05 59 55.6843213080 +58 34 15.208880304   15.24   13.23   M4.2V 47 0
55 G 249-36 PM* 06 05 29.4016804298 +60 49 22.464244993   14.7   12.8   M4.5V 36 0
56 CD-35 2722 ** 06 09 19.2081174720 -35 49 31.065774636   12.61 11.083 10.682 9.337 M1Ve 79 0
57 StKM 1-598 Er* 06 31 01.1562960792 +50 02 48.238271340       10.641   M0.8V 42 0
58 G 108-36 PM* 06 51 59.0197306152 +03 12 55.275640452   14.16   12.547   M2.5V 14 0
59 G 250-31 ** 06 57 57.118872 +62 19 19.36632   14.8   13.420   M6V+M5V 64 0
60 BD+20 1790 BY* 07 23 43.5893479416 +20 24 58.650645816   11.08 10.001 9.43 8.522 K5e 94 0
61 CD-29 4446C PM* 07 28 51.1711630008 -30 15 52.826557860   15.43 13.72 13.51 10.62 M5V 15 0
62 CD-29 4446 SB* 07 28 51.3552114700 -30 14 49.309736426 12.47 11.60 10.08 9.83 7.885 M1Ve 82 0
63 Ross 989 BY* 07 31 57.3231225770 +36 13 47.357610643   13.38 11.738 11.516   M4.0V 126 0
64 LSPM J0738+2400 PM* 07 38 29.4980478888 +24 00 08.654577588   14.59   12.689   M2.7V 40 0
65 LP 423-31 PM* 07 52 23.9250338268 +16 12 14.957934141   17.7 16.73 15.8   M6.0V 54 0
66 PM J07574+1201 PM* 07 57 27.1542444456 +12 01 27.109247448   14.233 12.685 12.223   M2.3V 10 0
67 PM J08031+2022 PM* 08 03 10.1670615755 +20 22 15.135723508     13.342 12.965   M3.5V 15 0
68 V* AZ Cnc Er* 08 40 29.6791626163 +18 24 08.726250637   19.2 17.59 16.6 13.45 M6.0V 85 0
69 LP 726-11 PM* 08 48 36.4540281000 -13 53 08.260062972     12.180   9.665 M2.6V 17 0
70 RX J0917.7+4612 ** 09 17 44.7188829574 +46 12 24.662188525   13.13 11.58 11.16   M1.7V 29 0
71 G 43-2 PM* 09 48 50.2005175704 +15 38 44.872950336   14.41 13.245 12.840   M3.0V 23 0
72 LP 261-75 LM* 09 51 04.5755715720 +35 58 09.461810208   16.1   14.2   M4.5Ve 50 0
73 G 116-72 Er* 09 59 18.7933000224 +43 50 25.406215764   15.0   13.579   M3.5V 46 0
74 G 196-3 PM* 10 04 21.4627410744 +50 23 13.386435576       11.323   M3.0V 79 0
75 MCC 124 BY* 10 14 19.1632274905 +21 04 29.817290641 12.667 11.451 10.083 9.155 8.250 M0.7V 120 1
76 RX J1014.5+0606 ** 10 14 31.946352 +06 06 40.94928   14.20 12.71 12.36   M3e 13 0
77 V* AD Leo Er* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1337 1
78 G 44-9 PM* 10 20 44.0727319896 +08 14 23.386519860   16.2   13.7   M5.9V 23 0
79 PM J10367+1521A PM* 10 36 44.8372375103 +15 21 39.862922826           M3.5 7 0
80 PM J10367+1521 ** 10 36 44.8457 +15 21 39.354     13.308 12.974   M4.0V 27 0
81 PM J10367+1521B ** 10 36 44.9220493544 +15 21 37.930217598           M4.5 6 0
82 LP 263-35 ** 10 51 20.5777267248 +36 07 25.461043140   14.6   13.148   M3.0V 40 1
83 LP 263-64 Er* 11 03 09.9882584544 +36 39 08.601698232   14.8   13.377   M3.5V 42 0
84 LP 491-51 SB* 11 03 21.2586297000 +13 37 57.025080588   14.15   12.635   M3.0V 40 0
85 V* CW UMa Er* 11 11 51.7407213394 +33 32 11.229919459   14.02   12.203   M3.5V 76 0
86 RX J1113.0+1025 PM* 11 13 00.5779578672 +10 25 05.770210476   15.7   13.3 11.4 M3.0V 17 0
87 AC +56 43797 Er* 11 15 54.0279717792 +55 19 50.637729972       10.686   M0.5V 42 0
88 PM J11240+3808 PM* 11 24 04.3617826440 +38 08 10.856809824   16.22 14.549 14.298   M4.5V 21 0
89 G 10-52 PM* 11 48 35.4844541136 +07 41 40.592421924   15.30   13.31   M3.5V 38 0
90 G 123-35 SB* 12 29 02.9193186744 +41 43 49.389366468   13.8   12.584   M3.5V 44 0
91 LP 377-100 Er* 12 29 27.1216080336 +22 59 46.730839956   15.77   13.885   M4.0V 40 0
92 RX J1241.7+5645 PM* 12 41 47.3655193296 +56 45 13.711195260   15.02 13.50 13.267   M3.5V 20 0
93 BD+36 2322B PM* 12 57 39.3125173002 +35 13 19.148808620   14.80 13.16 12.939   M4.5Ve 97 1
94 BD+36 2322 BY* 12 57 40.2569835641 +35 13 29.629213095   12.02 10.52 10.137   M0V+M4/5V 228 1
95 Wolf 468 Er* 13 02 05.8443917784 +12 22 21.449642268   13.9 12.748 12.406   M3Ve 26 0
96 G 164-47 Er* 13 09 34.9717027547 +28 59 06.364897756   15.93 14.078 13.707 11.14 M4.8V 72 0
97 L 546-85 ** 13 27 19.615488 -31 10 39.63216       13.302   M3.5V 32 0
98 1RXS J132923.9-142206 PM* 13 29 24.0875997744 -14 22 12.314147520     13.132 12.999   M3.5V 21 0
99 SIPS J1421-3125 PM* 14 21 55.0541517696 -31 25 53.670052056   15.33 13.81 13.580 11.08 M3.9V 12 0
100 PM J14444-0424W PM* 14 44 28.0929071712 -04 24 07.968152880     13.780 13.482   M3.0V 15 0
101 StM 219 PM* 15 09 08.1061013832 +59 04 25.740099228     13.5 11.83   M2.2V 21 0
102 V* OT Ser PM* 15 21 52.9325510712 +20 58 39.910874376 12.662 11.522 10.003 8.993 7.843 M1.0V 140 0
103 LP 384-8 PM* 15 33 50.6203926312 +25 10 10.383185424   16.2   13.7   M3.5V 15 0
104 G 167-54 PM* 15 43 48.455808 +25 52 38.33400   16.32   14.33   M4.1V 18 0
105 UCAC2 23646111 * 15 53 42.1002855120 -20 49 28.339057632         13.55 M3.4V 25 0
106 G 180-11 ** 15 55 31.744608 +35 12 03.18600   15.41   13.464   M4V 62 0
107 LP 276-29 ** 16 51 09.9671155776 +35 55 06.944117916   16.808 14.996 14.719   M4.6V 20 0
108 LP 331-57 SB* 17 03 52.858104 +32 11 45.96504   13.570 11.887 11.473   M2.4V 36 0
109 Ross 867 Er* 17 19 52.9654155615 +26 30 02.667757724   14.67   12.649   M4.5V 119 0
110 Ross 868 Er* 17 19 54.2077697528 +26 30 03.068999297   12.98 11.336 11.060 8.420 M3.5V 160 0
111 G 227-22 PM* 18 02 16.6038674062 +64 15 44.241600544   14.74   13.010   M5.0V 76 0
112 LP 390-16 BY* 18 13 06.5715967944 +26 01 51.859334352   14.93   12.970   M4.0V 55 0
113 LSPM J1832+2030A PM* 18 32 02.8926739872 +20 30 57.411930168     15.94     M5.1V 4 0
114 LSPM J1832+2030 ** 18 32 02.901264 +20 30 57.69432   17.6   14.87   M5V 15 0
115 LSPM J1832+2030B PM* 18 32 02.9296539000 +20 30 58.702213152           M4.9V 4 0
116 LSPM J1844+7129W PM* 18 44 09.7051155792 +71 29 17.982990024           M4.1V 10 0
117 LSPM J1844+7129 ** 18 44 10.237776 +71 29 18.28212   16.11 14.03 14.06   ~ 3 0
118 LSPM J1844+7129E PM* 18 44 10.3346533752 +71 29 17.457240372           M3.9V 9 0
119 Ross 733 Er* 19 14 39.1588795340 +19 19 03.730373117 13.861 12.964 11.536 10.445 9.012 M4.5V 63 1
120 Ross 734 PM* 19 14 39.2103739858 +19 18 22.977887851   14.79 13.380 12.987 10.57 M4V 42 1
121 2MASS J19303829-1335083 PM* 19 30 38.3142287853 -13 35 07.795265145       15.60   M6.0V 10 0
122 2MASS J19312434-2134226 PM* 19 31 24.3439051128 -21 34 22.777732632       11.43   M2.4V 16 0
123 RX J1935.4+3746 PM* 19 35 29.2027933512 +37 46 08.137429896       11.160   M3.0V 26 0
124 RX J1942.2-2045 PM* 19 42 12.8207494824 -20 45 47.976371352   15.84 14.27 13.87 11.25 M5.1V 25 0
125 G 125-36 PM* 19 50 15.9288771357 +31 47 00.359975535   13.9 12.904 12.458 10.47 M2.1V 28 0
126 1RXS J200031.8+592127 ** 20 00 31.789416 +59 21 29.12112   15.742 14.528 13.670   M4.1V 12 0
127 EM* StHA 182 ** 20 43 41.142360 -24 33 53.18208       12.379 10.10 M4.1V+M3.7V 38 0
128 LP 756-3 PM* 20 46 43.6461496322 -11 48 13.354173932     13.856 13.443 10.895 M4.0V 28 0
129 1RXS J205308.8-013310 PM* 20 53 09.1372297598 -01 33 04.362121381       15.41 12.39 M5.6V 12 0
130 LP 636-19 ** 20 53 14.6642332176 -02 21 21.891990600     13.249 13.005   M2.9V 28 0
131 BD+44 3670 * 21 00 46.9974222312 +45 30 10.478915676   9.368 8.692     F8 18 0
132 Ross 826 PM* 21 16 03.8392296096 +29 51 46.026517068   14.2   13.224   M3.3V 35 0
133 Ross 776 Er* 21 16 05.8176517656 +29 51 50.959940796   14.0   12.344   M3.3V 45 0
134 StKM 1-1950 V* 21 52 10.41792 +05 37 35.8596   13.63 12.141 11.836   M2.4V 64 0
135 LSPM J2214+2534 PM* 22 14 17.6883068352 +25 34 06.358999224   15.7   13.3   M4.3V 16 0
136 StKM 1-2018B PM* 22 33 22.6016168784 -09 36 53.559231012           M2.5V 5 0
137 StKM 1-2018A PM* 22 33 22.7172178536 -09 36 53.909325648           M2.6V 4 0
138 2MASS J22344161+4041387 * 22 34 41.6077568616 +40 41 38.669926164           M6.0V 16 0
139 V* WW PsA BY* 22 44 57.9628374984 -33 15 01.744541676 14.583 13.627 12.111 10.916 9.109 M4IVe 123 1
140 V* TX PsA Er* 22 45 00.0641595504 -33 15 26.091533124   14.93 13.36 12.095 10.379 M5IVe 80 0
141 V* EV Lac Er* 22 46 49.7312610268 +44 20 02.374381562   11.85 10.26 9.89   M4.0Ve 900 2
142 LP 237-32 PM* 22 47 37.6636549512 +40 41 25.433458872   16.0   13.9   M3.8V 12 0
143 V* GT Peg BY* 22 51 53.5351209551 +31 45 15.192825225       11.281   M3.5Ve 157 0
144 1RXS J225817.2-110434 PM* 22 58 16.4380517745 -11 04 17.070906723   14.485 12.942 12.695   M2.5V 19 0
145 MCC 858 Er* 23 06 04.8465138840 +63 55 34.356579420   12.34 10.96 10.37 9.10 M0.3V 88 0
146 LP 462-11 CV* 23 13 47.3343443160 +21 17 29.337707544   17.9   15.5   M7.5V 20 0
147 LP 642-48 ** 23 20 57.7030474896 -01 47 37.294467972   15.12 13.694 13.43 10.87 M4.0V 33 0
148 G 190-27 ** 23 29 22.6031807135 +41 27 52.016128548   13.4   12.173   M4.2V 46 1
149 G 190-28 Er* 23 29 23.4752493929 +41 28 06.730795280       11.513   M2.9V 51 1
150 G 68-37 Er* 23 44 20.8848482435 +21 36 05.106110472   14.93 13.37 12.96   M3.4V 33 0
151 RX J2350.0+2659 PM* 23 50 06.4057206312 +26 59 51.953262936   15.9   13.3 11.2 M4.0V 25 0
152 G 68-46 PM* 23 51 22.2966320952 +23 44 20.580799416   15.33   13.895   M4.0V 46 0
153 PM J23515+3127 PM* 23 51 33.6738769584 +31 27 23.022676908     13.602 13.105   M2.0V 37 0
154 RX J2354.8+3831 PM* 23 54 51.4580576376 +38 31 36.200975556   14.78   12.94   M3.1V 42 0
155 LP 291-34 ** 23 57 49.9053096696 +38 37 46.770184092   15.20   12.340   M2.8V 36 0
156 G 273-191 ** 23 58 13.696536 -17 24 33.77412   13.51 12.009 11.519 9.593 M1Ve 31 0
157 G 130-31 PM* 23 59 19.8519227764 +32 41 24.354062369   15.7   14.1   M5.6V 14 0

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