2013MNRAS.431.1005D

Query : 2013MNRAS.431.1005D

2013MNRAS.431.1005D - Mon. Not. R. Astron. Soc., 431, 1005-1018 (2013/May-2)

Search for associations containing young stars: chemical tagging IC 2391 and the Argus association.

DE SILVA G.M., D'ORAZI V., MELO C., TORRES C.A.O., GIELES M., QUAST G.R. and STERZIK M.

Abstract (from CDS):

We explore the possible connection between the open cluster IC 2391 and the unbound Argus association identified by the search for associations containing young stars survey. In addition to common kinematics and ages between these two systems, here we explore their chemical abundance patterns to confirm if the two substructures shared a common origin. We carry out a homogenous high-resolution elemental abundance study of eight confirmed members of IC 2391 as well as six members of the Argus association using UVES spectra. We derive spectroscopic stellar parameters and abundances for Fe, Na, Mg, Al, Si, Ca, Ti, Cr, Ni and Ba.

All stars in the open cluster and Argus association were found to share similar abundances with the scatter well within the uncertainties, where [Fe/H] = -0.04±0.03 for cluster stars and [Fe/H] = -0.06±0.05 for Argus stars. Effects of overionization/excitation were seen for stars cooler than roughly 5200 K as previously noted in the literature. Also, enhanced Ba abundances of around 0.6dex were observed in both systems. The common ages, kinematics and chemical abundances strongly support the fact that the Argus association stars originated from the open cluster IC 2391. Simple modelling of this system finds this dissolution to be consistent with two-body interactions.


Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): stars: abundances - open clusters and associations: general - open clusters and associations: individual: IC 2391 and Argus association

VizieR on-line data: <Available at CDS (J/MNRAS/431/1005): table1.dat table2.dat table4.dat tablea1.dat>

CDS comments: Section 3.5: CD-38 583 is a probable misprint for CD-39 5833. TYC 8561-0907-1 is a probable misprint for TYC 8561-0970-1.

Simbad objects: 94

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Number of rows : 94
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 NAME THA As* 00 00 -62.0           ~ 468 0
2 V* BW Phe PM* 00 56 55.4414002176 -51 52 31.766387304   10.61 9.053   7.882 K3Ve 42 0
3 NGC 1039 OpC 02 42 07.4 +42 43 19           ~ 430 0
4 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 3074 0
5 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1021 0
6 CD-29 2360 Ro* 05 34 59.2269000456 -29 54 03.974248692   11.66 10.534   9.420 K3Ve 12 0
7 CD-49 1902 Ro* 05 49 44.7878799072 -49 18 25.936947108   12.28 11.29   10.594 G7V 9 0
8 NAME Columba Association As* 06 04 19.4 -22 20 40           ~ 280 0
9 V* AP Col Er* 06 04 52.1486600471 -34 33 35.774443549     12.96 11.49 9.60 M5 74 0
10 CD-56 1438 Ro* 06 11 52.9844696328 -56 19 04.657498896   11.80 11.325   10.392 K0V 12 0
11 CD-28 3434 * 06 47 37.6813029312 -28 58 08.237217360   11.45 9.99     K0V 11 0
12 CD-42 2906 Ro* 07 01 53.4055070760 -42 27 56.158534944   11.48 10.61   9.621 K1V 19 0
13 CD-48 2972 PM* 07 28 22.0257671592 -49 08 37.667060052   10.53 9.855   8.996 G8V 24 0
14 HD 61005 PM* 07 35 47.4623556456 -32 12 14.045086368   8.96 8.22     G8Vk 228 0
15 CD-48 3199 Ro* 07 47 25.9739769048 -49 02 51.162831348   11.29 10.562   9.707 G7V 18 0
16 CD-43 3604 SB* 07 48 49.8160427640 -43 27 05.717388132   11.82 10.88   9.730 K4Ve 21 0
17 ASAS J075355-5710.1 V* 07 53 55.4797003848 -57 10 07.345097760   12.50 11.49 10.89 10.85 K0V 15 0
18 HD 67945 PM* 08 09 38.6107218936 -20 13 50.008645920   8.41 8.07     F0V 16 0
19 Cl* IC 2391 PMM 5314 * 08 28 34.5685129032 -52 37 03.873861912   10.68 10.37 10.42   ~ 2 0
20 Cl* IC 2391 PMM 7422 Ro* 08 28 45.6336171024 -52 05 26.764840032   11.08 10.525 10.38 9.832 G6 24 0
21 Cl* IC 2391 PMM 7956 V* 08 29 51.9165192576 -51 40 39.590841468   12.40 11.57 11.35   K2e 8 0
22 Cl* IC 2391 PMM 1560 * 08 29 52.3887063432 -53 21 59.825778408   11.24 10.68     G3 5 0
23 Cl* IC 2391 PMM 6973 * 08 34 14.0585217168 -52 12 45.660773304   11.60 10.86     ~ 5 0
24 Cl* IC 2391 PMM 6974 * 08 34 18.1494717432 -52 15 57.748350348   13.25 12.30 12.01   ~ 19 0
25 Cl* IC 2391 PMM 4280 * 08 34 20.4968371272 -52 50 04.935026760   10.84 10.28 10.29   G5 11 0
26 Cl* IC 2391 PMM 6978 * 08 35 01.1922192288 -52 14 01.431380976   13.04 12.11 11.86   ~ 16 0
27 Cl* IC 2391 PMM 2456 V* 08 35 43.6853515872 -53 21 20.298083616   13.11 12.19 11.89   K3e 14 0
28 Cl* IC 2391 PMM 351 V* 08 36 24.2454135528 -54 01 05.700226368   10.70 10.13 10.21   G0 20 0
29 Cl* IC 2391 PMM 3359 * 08 36 54.9899784600 -53 08 34.273115664   12.33 11.53 11.33   ~ 28 0
30 Cl* IC 2391 PMM 5376 * 08 37 02.2591914024 -52 46 59.349950148   15.71 14.31 13.84   Me 10 0
31 HD 73777 * 08 37 47.0462493600 -52 52 12.246748896   10.07 9.73 9.85   F5V 15 0
32 Cl* IC 2391 D 41 * 08 37 51.5680732992 -53 45 45.786958380   12.15 11.39 11.23   G8 29 0
33 VXR PSPC 2a * 08 37 55.5737657592 -52 57 10.895343372   12.26 11.34 11.42   G9 10 0
34 VXR PSPC 2b * 08 37 56.2348817040 -52 57 05.505544404       12.49   ~ 14 0
35 CD-52 2467 * 08 38 22.9092124584 -52 56 48.041148444   11.61 10.93 10.81   ~ 31 0
36 CD-52 2472 SB* 08 38 55.6626968784 -52 57 51.679265796 11.19 11.01 10.33 10.19   G2 43 0
37 CD-58 2194 Ro* 08 39 11.5528088760 -58 34 28.047279216   10.77 10.11   9.351 G5V 22 0
38 Cl* IC 2391 PMM 686 V* 08 39 22.5653659224 -53 55 05.693041272   13.57 12.55 12.34   K4e 20 0
39 V* V364 Vel BY* 08 39 53.0493554064 -52 57 56.847553812   12.75 11.89 11.69   K0 41 0
40 V* V365 Vel BY* 08 40 06.2321644608 -53 38 06.875687760   11.07 10.47 10.44   G0 39 0
41 VXR PSPC 16a * 08 40 16.2484046424 -52 56 29.172145452   12.48 11.76 11.60   G9 33 0
42 Cl* IC 2391 PMM 1759 V* 08 40 18.2860194816 -53 30 28.806321024   14.73 13.51 13.07   K3e 25 0
43 Cl* IC 2391 SMY 23 * 08 40 49.1007179088 -53 37 45.364323468   11.91 11.15 10.84   G6 39 0
44 IC 2391 OpC 08 41 10.1 -52 59 28           ~ 822 0
45 HD 74374 * 08 41 22.7413299456 -53 38 09.149175312   9.92 9.55 9.79   F3V 32 0
46 V* V366 Vel BY* 08 41 25.8875436000 -53 22 41.467632456   13.63 12.519   11.277 K3e 37 0
47 V* V368 Vel BY* 08 41 57.8482531848 -52 52 13.942332264   14.59 13.76 12.74 12.03 K7e 34 0
48 V* V371 Vel BY* 08 42 18.5563649256 -53 01 56.872692444   15.44       M2e 33 0
49 NAME eta Cha Association OpC 08 42 32.9 -78 57 47           ~ 363 0
50 Cl* IC 2391 PMM 756 * 08 43 00.4034079504 -53 54 07.637837904   11.79 11.06 10.90   G9 29 0
51 HD 74714 * 08 43 17.9019072432 -52 36 11.224008864   9.51 9.12 9.59   F2IV/V 27 0
52 CD-52 2523 * 08 43 52.3041352704 -53 13 59.755302120   10.22 9.70 9.92   ~ 28 0
53 Cl* IC 2391 PMM 2012 V* 08 43 59.0158397352 -53 33 43.654824216   12.288 11.529 11.516   K0 18 0
54 V* V376 Vel BY* 08 44 05.2223496648 -52 53 17.190402504   11.37 10.75 10.74   G3e: 43 0
55 Cl* IC 2391 PMM 1373 * 08 44 10.2027162504 -53 43 33.679816356   13.21 12.25 12.00   ~ 15 0
56 V* V377 Vel BY* 08 44 26.1593280456 -52 42 32.329984788   12.27 11.51 11.23   G9 43 0
57 V* V379 Vel BY* 08 45 26.9313010080 -52 52 02.105583096   13.79 12.76 12.54   K3e 45 0
58 V* V380 Vel Ro* 08 45 39.1343066088 -52 25 59.548764108   10.35 9.88 9.98   F8 28 0
59 Cl* IC 2391 PMM 2182 * 08 45 47.9489999352 -53 25 50.622927384   10.74 10.09 10.18   G2e: 17 0
60 CD-57 2315 PM* 08 50 08.1053510280 -57 45 59.225306040   11.07 10.309   8.310 K3Ve 16 0
61 ASAS J090204-5808.8 V* 09 02 03.9382572456 -58 08 49.823519136   12.12 11.42     G8V 20 0
62 ASAS J092854-4101.3 Ro* 09 28 54.1216479263 -41 01 19.142001701   12.40 11.653   10.554 K3V 16 0
63 HD 84075 TT* 09 36 17.8234661352 -78 20 41.588588076   9.18 8.59     G2V 57 0
64 BD-20 2977 Ro* 09 39 51.4268421456 -21 34 17.444950860   10.93 10.34     G9V 16 0
65 ASAS J094247-7239.8 Ro* 09 42 47.4258710616 -72 39 49.952424240   13.08 12.301   11.191 K1V 16 0
66 CD-39 5833 * 09 47 19.8552144552 -40 03 09.845765064   11.57 10.89     K0V 28 0
67 HD 85151A PM* 09 48 43.1867586565 -44 54 07.737644758   10.14 9.60     G7V 7 0
68 HD 85151B * 09 48 43.3857022934 -44 54 08.722123229   10.92 10.20     G9V 7 0
69 CD-65 817 ** 09 49 09.070176 -65 40 21.04212   10.840 10.213 10.135 9.388 G5V 9 0
70 HD 309851 PM* 09 55 58.3179410904 -67 21 21.855027312   10.50 9.852   9.121 G1V 18 0
71 HD 310316 ** 10 49 56.048904 -69 51 21.67704   10.78 10.07 10.06 9.254 G8V 11 0
72 CPD-69 1432 Ro* 10 53 51.4793390424 -70 02 16.115092764   11.33 10.731   9.971 G2V 11 0
73 NAME UMa Region reg 11 00 +50.0           ~ 327 0
74 NAME TW Hya Association As* 11 01.9 -34 42           ~ 942 0
75 NAME eps Cha Association OpC 11 59 51 -78 12.4           ~ 161 1
76 CD-42 7422 Er* 12 06 32.9321759304 -42 47 50.857021860   11.53 10.691   9.746 K0V 17 0
77 CD-74 673 TT* 12 20 34.3777314336 -75 39 28.630039572   11.55 10.588   9.449 K3Ve 33 0
78 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1178 0
79 CD-75 652 TT* 13 49 12.9354906672 -75 49 47.448396768   10.22 9.680   8.724 G1V 25 0
80 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 774 0
81 HD 129496 PM* 14 46 21.4162495920 -67 46 15.635424000   9.37 8.81     F7V 14 0
82 V* NY Aps BY* 15 12 23.4366789528 -75 15 15.643023768   10.23 9.378   8.512 G9V 49 0
83 HD 145689 PM* 16 17 05.4106267752 -67 56 28.623022404   6.090 5.944     A3V 66 0
84 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14407 0
85 CD-62 1197 * 18 16 36.9794244264 -62 44 59.034619788   10.52 10.17     ~ 7 0
86 CD-52 9381 LM* 20 07 23.7707562384 -51 47 27.266582652   11.57 10.608   9.087 K6Ve 28 0
87 NAME Carina Association As* ~ ~           ~ 154 1
88 NAME Carina-near Moving Group MGr ~ ~           ~ 90 0
89 NAME HR 1614 Moving Group As* ~ ~           ~ 49 0
90 NAME Hyades Moving Group MGr ~ ~           ~ 281 0
91 NAME Hercules Stream MGr ~ ~           ~ 237 0
92 NAME Wolf 630 Moving Group MGr ~ ~           ~ 38 0
93 NAME Octans Association As* ~ ~           ~ 89 0
94 NAME Argus Association As* ~ ~           ~ 228 0

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