2014A&A...567A..55S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST21:23:29

2014A&A...567A..55S - Astronomy and Astrophysics, volume 567A, 55-55 (2014/7-1)

The Gaia-ESO Survey: the first abundance determination of the pre-main-sequence cluster gamma Velorum.

SPINA L., RANDICH S., PALLA F., SACCO G.G., MAGRINI L., FRANCIOSINI E., MORBIDELLI L., PRISINZANO L., ALFARO E.J., BIAZZO K., FRASCA A., GONZALEZ HERNANDEZ J.I., SOUSA S.G., ADIBEKYAN V., DELGADO-MENA E., MONTES D., TABERNERO H., KLUTSCH A., GILMORE G., FELTZING S., JEFFRIES R.D., MICELA G., VALLENARI A., BENSBY T., BRAGAGLIA A., FLACCOMIO E., KOPOSOV S., LANZAFAME A.C., PANCINO E., RECIO-BLANCO A., SMILJANIC R., COSTADO M.T., DAMIANI F., HILL V., HOURIHANE A., JOFRE P., DE LAVERNY P., MASSERON T. and WORLEY C.

Abstract (from CDS):

Knowledge of the abundance distribution of star forming regions and young clusters is critical to investigate a variety of issues, from triggered star formation and chemical enrichment by nearby supernova explosions to the ability to form planetary systems. In spite of this, detailed abundance studies are currently available for relatively few regions. In this context, we present the analysis of the metallicity of the gamma Velorum cluster, based on the products distributed in the first internal release of the Gaia-ESO Survey. The gamma Velorum candidate members have been observed with FLAMES, using both UVES and Giraffe, depending on the target brightness and spectral type. In order to derive a solid metallicity determination for the cluster, membership of the observed stars must be first assessed. To this aim, we use several membership criteria including radial velocities, surface gravity estimates, and the detection of the photospheric lithium line. Out of the 80 targets observed with UVES, we identify 14 high-probability members. We find that the metallicity of the cluster is slightly subsolar, with a mean [Fe/H]=-0.057±0.018dex. Although J08095427-4721419 is one of the high-probability members, its metallicity is significantly larger than the cluster average. We speculate about its origin as the result of recent accretion episodes of rocky bodies of ∼60M hydrogen-depleted material from the circumstellar disk.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: pre-main sequence - open clusters and associations: individual: gamma Velorum - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/A+A/567/A55): table4.dat table5.dat table6.dat table7.dat>

Simbad objects: 90

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Number of rows : 90

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2978 0
2 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1216 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14826 1
4 NAME GUM Nebula ISM 07 43 -42.1           ~ 387 1
5 HD 67610 * 08 06 36.1552787154 -47 48 20.620001683   9.98 9.84     A1/2V 5 0
6 GES J08064772-4659492 * 08 06 47.7153304027 -46 59 49.121525224           ~ 2 0
7 GES J08065592-4704528 * 08 06 55.9253065162 -47 04 52.807993298           ~ 2 0
8 HD 67658 * 08 06 56.8862425639 -47 17 24.590974579   9.84 9.76     ApSi 11 0
9 GES J08070521-4734401 * 08 07 05.2085410207 -47 34 40.236558952           ~ 2 0
10 2MASS J08070716-4721462 Y*? 08 07 07.1679818307 -47 21 46.387933255   12.99 11.90   10.74 ~ 4 0
11 2MASS J08071363-4725155 Y*? 08 07 13.6370112140 -47 25 15.658307484   13.39 12.73   11.94 ~ 4 0
12 UCAC2 11257492 * 08 07 13.8238266935 -47 36 15.644821337   14.131 12.593 12.23 11.00 ~ 4 0
13 TYC 8140-4071-1 * 08 07 15.0110997528 -46 58 15.361663476   11.66 11.26     ~ 2 0
14 GES J08071937-4710143 * 08 07 19.3683578120 -47 10 14.298416552           ~ 2 0
15 TYC 8140-3397-1 SB* 08 07 25.1592922898 -47 12 52.229044599   11.56 11.40     ~ 3 0
16 GES J08073209-4746433 * 08 07 32.0942364673 -47 46 43.335540574           ~ 2 0
17 TYC 8140-4964-1 * 08 07 32.3775252023 -47 22 12.086493575   11.04 10.72   10.46 ~ 3 0
18 TYC 8140-3205-1 * 08 07 33.1509143752 -47 44 51.373211440   12.13 11.24     ~ 3 0
19 GES J08073447-4716569 * 08 07 34.4696183331 -47 16 56.949663640           ~ 2 0
20 GES J08073722-4705053 SB* 08 07 37.22 -47 05 05.3     11.83     ~ 2 0
21 TYC 8140-5446-1 * 08 07 40.1620 -47 21 02.268   10.88 10.46     ~ 3 0
22 2MASS J08074018-4730402 Y*? 08 07 40.1889913912 -47 30 40.362488743   13.20 12.28   11.33 ~ 4 0
23 GES J08074278-4659566 * 08 07 42.7821657298 -46 59 56.608941028           ~ 1 0
24 GES J08074671-4658173 * 08 07 46.7112238850 -46 58 17.262010311           ~ 2 0
25 2MASS J08075166-4706085 Y*? 08 07 51.6712791330 -47 06 08.540562351   14.22 12.97   11.68 ~ 4 0
26 2MASS J08080053-4702145 Y*? 08 08 00.5330053493 -47 02 14.489861505   13.53 12.81   12.01 ~ 4 0
27 2MASS J08080431-4716271 Y*? 08 08 04.3154628985 -47 16 27.157148728   13.47 12.65   11.76 ~ 4 0
28 CD-47 3618 * 08 08 05.2559758811 -47 22 06.058753926   10.59 10.55     A5 4 0
29 HD 67927 * 08 08 06.9027587246 -47 15 07.481217578   9.30 9.25     A1V 8 0
30 2MASS J08080882-4736515 Y*? 08 08 08.8239185538 -47 36 51.543489704   14.02 12.69   11.36 ~ 4 0
31 TYC 8140-5365-1 * 08 08 12.4499462387 -47 05 59.229984219   10.43 10.40     ~ 1 0
32 2MASS J08081445-4701499 Y*? 08 08 14.4520499627 -47 01 49.897776325   13.29 12.66   11.91 ~ 4 0
33 2MASS J08082630-4721082 Y*? 08 08 26.3028548397 -47 21 08.273890413   11.22 10.97   10.69 ~ 3 0
34 UCAC2 11483776 * 08 08 32.323 -47 22 55.35   13.54 12.22 11.92 11.23 ~ 3 0
35 TYC 8140-5640-1 * 08 08 37.0691564286 -47 27 37.031607169   11.08 10.81   10.57 ~ 4 0
36 2MASS J08083759-4736060 Y*? 08 08 37.5858765823 -47 36 06.046413800   12.79 12.21   11.51 ~ 4 0
37 2MASS J08083990-4741513 Y*? 08 08 39.9002258957 -47 41 51.332270448   12.99 12.34   11.62 ~ 4 0
38 2MASS J08085306-4704068 Y*? 08 08 53.0727101999 -47 04 06.832540836   12.74 12.12   11.40 ~ 4 0
39 TYC 8140-5301-1 * 08 08 54.5550776469 -47 00 05.369496759   12.494 11.481     ~ 4 0
40 2MASS J08085598-4659332 Y*? 08 08 55.9894556524 -46 59 33.307631350   12.345 11.38   10.33 ~ 5 0
41 HD 68159 * 08 09 04.3044044614 -47 41 02.538954966   10.22 10.00     A0/1V 10 0
42 2MASS J08090541-4740260 Y*? 08 09 05.4107974653 -47 40 26.061146270   12.99 12.13   11.13 ~ 4 0
43 HD 68158 * 08 09 07.3839444376 -47 38 13.596500903   9.24 9.18     A0V 8 0
44 TYC 8140-5565-1 * 08 09 08.4977234094 -47 01 40.717427961   11.26 10.73     F1V 7 0
45 GES J08091397-4722030 * 08 09 13.9766380441 -47 22 03.030115385           ~ 2 0
46 HD 68186 * 08 09 16.3774089949 -47 13 37.419614815   9.46 9.38     A1/2V 10 0
47 2MASS J08091875-4708533 pr? 08 09 18.7492202254 -47 08 53.373714817     12.496   11.841 F9IV-Ve 5 0
48 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 210 0
49 2MASS J08092627-4731001 pr* 08 09 26.2669420384 -47 31 00.105018053   13.45 12.55   11.53 K1Ve 10 0
50 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 839 0
51 2MASS J08093302-4737065 Y*? 08 09 33.028 -47 37 06.91   12.77 11.96   10.97 G2Ve 8 0
52 2MASS J08093589-4718524 pr* 08 09 35.8914226895 -47 18 52.485097540   13.82 12.79   11.59 ~ 6 0
53 2MASS J08094219-4719526 pr* 08 09 42.1998144175 -47 19 52.709359914   13.31 12.39   11.24 K1Ve 11 0
54 CD-46 3850 * 08 09 43.0034268619 -47 18 35.286554983   9.86 9.74     ~ 6 0
55 GES J08094390-4703094 * 08 09 43.9015596599 -47 03 09.399542446           ~ 1 0
56 2MASS J08094711-4740038 Y*? 08 09 47.1087371085 -47 40 03.805118289   12.94 11.89   10.77 ~ 4 0
57 TYC 8140-2255-1 * 08 09 50.4193324815 -46 57 07.977823821   10.97 10.61     ~ 1 0
58 NGC 2547 OpC 08 09 52.360 -49 10 35.01           ~ 310 0
59 2MASS J08095426-4721418 pr* 08 09 54.2655205390 -47 21 41.865944794   12.53 11.84   11.07 G1.5V 10 0
60 2MASS J08095428-4710344 Y*? 08 09 54.2852935191 -47 10 34.398092054   13.62 12.44   11.13 ~ 4 0
61 GES J08095783-4701385 * 08 09 57.8388386590 -47 01 38.341202867     12.63   11.45 ~ 7 0
62 2MASS J08095966-4726048 pr* 08 09 59.6684423149 -47 26 04.792319818   12.79 12.00   11.10 K0IV 9 0
63 UCAC2 11258366 * 08 10 11.6026627333 -47 37 55.610233901   14.09 12.61 12.29 11.11 ~ 4 0
64 GES J08101201-4720464 * 08 10 12.01 -47 20 46.4           ~ 2 0
65 2MASS J08101213-4718392 Y*? 08 10 12.1237047347 -47 18 39.241632258   13.04 11.89   10.69 ~ 4 0
66 TYC 8140-6494-1 * 08 10 13.0732697621 -47 22 22.152562730   12.39 11.38     ~ 3 0
67 2MASS J08103648-4659501 Y*? 08 10 36.4770637257 -46 59 50.224471147   13.40 12.29   11.11 ~ 4 0
68 2MASS J08103781-4702584 Y*? 08 10 37.8161997832 -47 02 58.444580804   13.18 12.024   10.84 ~ 5 0
69 TYC 8140-6048-1 * 08 10 37.9959855291 -47 23 31.776549596   12.32 12.47     ~ 2 0
70 2MASS J08103996-4714427 pr* 08 10 39.9580408755 -47 14 42.758238660   12.66 12.06   11.34 ~ 6 0
71 2MASS J08104494-4723015 Y*? 08 10 44.9487479826 -47 23 01.484184461   13.43 12.24   11.02 ~ 4 0
72 GES J08105180-4746394 * 08 10 51.8009406956 -47 46 39.462592975           ~ 2 0
73 TYC 8140-6307-1 * 08 10 53.8188051610 -47 19 57.905970101   11.05 10.69   10.23 ~ 3 0
74 HD 68577 * 08 10 58.1324687937 -47 29 13.652591411   10.09 9.91   9.80 A2V 6 0
75 TYC 8140-1113-1 * 08 10 58.8766255930 -47 00 14.062339367   11.14 11.20     ~ 2 0
76 2MASS J08110285-4724405 Y*? 08 11 02.8462284556 -47 24 40.494783689   13.93 12.99   11.91 K1Ve 8 0
77 TYC 8140-5363-1 * 08 11 12.2840683803 -47 04 49.093234271   12.31 11.51     ~ 3 0
78 HD 68656 * 08 11 16.1874793236 -47 13 18.826227263   9.22 9.17     A0V 10 0
79 2MASS J08111853-4704187 Y*? 08 11 18.5295706168 -47 04 18.711209011   13.41 12.44   11.41 ~ 4 0
80 GES J08112119-4654274 * 08 11 21.1909568234 -46 54 27.395684046           ~ 2 0
81 CD-46 3889 * 08 11 21.8813253335 -47 11 28.164625075   10.62 10.34     A5 4 0
82 GES J08112306-4733019 * 08 11 23.0614839848 -47 33 01.924130535           ~ 2 0
83 GES J08112313-4737105 * 08 11 23.1346722691 -47 37 10.483845004           ~ 2 0
84 TYC 8140-4604-1 * 08 11 41.1614119173 -47 20 34.439318698   11.96 11.20     ~ 3 0
85 GES J08114979-4700130 * 08 11 49.7946705267 -47 00 12.970765350           ~ 2 0
86 GES J08115305-4654115 SB* 08 11 53.0473149297 -46 54 11.526394757     12.93     ~ 2 0
87 TYC 8140-5062-1 * 08 11 54.5048265465 -46 55 42.931564292   10.87 10.35     ~ 3 0
88 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1110 2
89 Cl Trumpler 10 OpC 08 47 54 -42 27.0           ~ 145 0
90 NAME Vela Field reg ~ ~           ~ 149 0

    Equat.    Gal    SGal    Ecl

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2020.07.03-21:23:29

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