2018A&A...619A.130A


Query : 2018A&A...619A.130A

2018A&A...619A.130A - Astronomy and Astrophysics, volume 619A, 130-130 (2018/11-1)

The AMBRE project: searching for the closest solar siblings.

ADIBEKYAN V., DE LAVERNY P., RECIO-BLANCO A., SOUSA S.G., DELGADO-MENA E., KORDOPATIS G., FERREIRA A.C.S., SANTOS N.C., HAKOBYAN A.A. and TSANTAKI M.

Abstract (from CDS):


Context. Finding solar siblings, that is, stars that formed in the same cluster as the Sun, will yield information about the conditions at the Sun's birthplace. Finding possible solar siblings is difficult since they are spread widely throughout the Galaxy.
Aims. We search for solar sibling candidates in AMBRE, the very large spectra database of solar vicinity stars.
Methods. Since the ages and chemical abundances of solar siblings are very similar to those of the Sun, we carried out a chemistry- and age-based search for solar sibling candidates. We used high-resolution spectra to derive precise stellar parameters and chemical abundances of the stars. We used these spectroscopic parameters together with Gaia DR2 astrometric data to derive stellar isochronal ages. Gaia data were also used to study the kinematics of the sibling candidates.
Results. From about 17000 stars that are characterized within the AMBRE project, we first selected 55 stars whose metallicities are closest to the solar value (-0.1≤[Fe/H]≤0.1dex). For these stars we derived precise chemical abundances of several iron-peak, α- and neutron-capture elements, based on which we selected 12 solar sibling candidates with average abundances and metallicities between -0.03 and 0.03 dex. Our further selection left us with four candidates with stellar ages that are compatible with the solar age within observational uncertainties. For the two of the hottest candidates, we derived the carbon isotopic ratios, which are compatible with the solar value. HD 186302 is the most precisely characterized and probably the most probable candidate of our four best candidates.
Conclusions. Very precise chemical characterization and age estimation is necessary to identify solar siblings. We propose that in addition to typical chemical tagging, the study of isotopic ratios can give further important information about the relation of sibling candidates with the Sun. Ideally, asteroseismic age determinations of the candidates could solve the problem of imprecise isochronal ages.

Abstract Copyright: © ESO 2018

Journal keyword(s): stars: abundances - stars: kinematics and dynamics - solar neighborhood

VizieR on-line data: <Available at CDS (J/A+A/619/A130): abund.dat>

Simbad objects: 81

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Number of rows : 81
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 Cl Blanco 1 OpC 00 03 25 -29 57.5           ~ 293 0
2 HD 631 * 00 10 39.1283097672 +12 49 12.835789104   9.03 8.46     G5 30 0
3 HD 2247 * 00 26 11.4208305480 -21 32 54.866439744   10.189 9.845     F6V 18 0
4 HD 4021 * 00 42 36.0550876872 -16 42 11.597037732   9.55 8.84     G5V 36 0
5 HD 5418 * 00 56 09.1198504560 +13 57 07.051546548 8.140 7.420 6.440     G8II 21 0
6 HD 6245 * 01 02 49.1896926576 -46 23 50.313370020   6.286 5.387     G8III 35 0
7 HD 6204 * 01 02 57.4203939192 -09 51 40.459854636   9.17 8.53     G3V 48 0
8 HD 6790 * 01 07 57.6156653976 -37 53 53.368403712   9.92 9.34     G0V 36 0
9 HD 7515 * 01 14 21.8156788800 -50 15 05.352821028   10.02 9.40     G2/3V 16 0
10 HD 10180 * 01 37 53.5772394024 -60 30 41.482108548   7.95 7.32     G1V 186 2
11 HD 10678 * 01 42 37.0141877136 -58 24 47.321778924   9.08 8.39     G6V 33 0
12 HD 13021 mul 02 04 04.2903812 -71 15 10.708082           G3IV/V 13 0
13 HD 22249 * 03 33 03.8147958312 -46 43 20.293320000   9.38 8.71     G2V 45 0
14 HD 22556 ** 03 37 52.4690963040 +05 38 28.680103104   8.36 7.78     F8 41 0
15 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3282 0
16 Cl Melotte 25 OpC 04 29 47 +16 56.9           ~ 2929 0
17 HD 29167 ** 04 31 55.95 -59 52 29.5           G0V 9 0
18 HD 29167A * 04 31 55.9521297216 -59 52 29.466639696   10.37 9.76 9.972   ~ 2 0
19 HD 29167B * 04 31 56.6285779920 -59 52 26.226746292   10.63 9.96 10.064   ~ 6 0
20 HD 28676 * 04 32 07.9069406520 +21 37 56.484184296   7.71 7.08     F5 60 0
21 HD 30858 * 04 50 12.8613974616 -26 07 51.638109420   10.33 9.42     K0/1V 36 0
22 HD 37811 RG* 05 39 49.8397379112 -32 37 45.177232224   6.357 5.437     G6/8III 30 0
23 HD 38382 * 05 44 28.3954021848 -20 07 35.661845280   6.898 6.341     F8.5V 92 0
24 HD 41071 EB* 06 00 41.2986127464 -44 53 50.109263016   9.81 9.07     G8V 41 0
25 HD 41842 * 06 06 16.6150494576 -27 54 20.983891536   9.86 8.98     K1V 47 0
26 HD 45415 * 06 27 20.4505611720 +02 54 29.836279548   6.576 5.543     G8III 66 0
27 CoRoT-7 * 06 43 49.4690164104 -01 03 46.826642700   12.78 11.73 11.36 10.87 K0V 200 1
28 HD 52456 * 07 01 35.5630396032 +06 55 36.632655696   9.02 8.14     K2V 51 0
29 HD 56351 SB* 07 13 42.2234653392 -54 54 02.379030480   9.47 8.83     G5V 25 0
30 HD 62412 * 07 42 48.1523787648 -26 21 04.775421528   6.615 5.628     K1III 38 0
31 HD 62816 * 07 45 29.2405734288 -10 09 38.414857428   8.01 7.55     F5V 27 0
32 HD 64942 * 07 55 58.2271040472 -09 47 49.935359904   9.00 8.34     G3/5V 61 0
33 HD 66488 * 08 03 32.1102794688 -08 10 24.255644412   7.93 7.41     F7V 25 0
34 * bet Pyx * 08 40 06.1436306 -35 18 30.065139   4.885 3.954     G5II/III 74 0
35 NGC 2632 OpC 08 40 13 +19 37.3           ~ 1449 0
36 BD-20 2665 ** 08 44 40.9945954080 -21 25 47.986824036   11.3 10.19     K7V 23 0
37 HD 75006 * 08 46 28.8326550336 -27 56 16.356980148   9.93 8.74     K1III 4 0
38 V* HL Cnc BY* 09 01 22.7765982288 +10 43 58.517497164   9.51 8.88     G0 28 0
39 HD 83423 * 09 39 27.4343607912 +42 17 09.143956896   9.32 8.75     F8V 36 0
40 HD 89124 * 10 13 46.8660706920 -71 34 36.549658920   9.66 8.97     G5V 25 0
41 HD 89839 * 10 20 40.5422616216 -53 39 50.736867444   8.169 7.64     F7V 53 2
42 HD 89965 * 10 22 23.4902431776 -28 50 51.434131920   10.40 9.44     K3V 33 0
43 HD 92987 * 10 43 36.2780714160 -39 03 30.554528796   7.66 7.02     G2/3V 63 0
44 HD 95542 * 11 00 17.6973728712 -66 33 25.321186944   8.86 8.27     G0V 48 0
45 HD 96116 * 11 04 13.6519319736 -57 45 54.477392472   9.34 8.69     G3V 65 0
46 * tau Leo * 11 27 56.2395231024 +02 51 22.554108900   5.940 4.943     G8-IIIa 127 0
47 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 423 1
48 HD 109098 * 12 32 04.4496181008 -01 46 20.490935016   7.94 7.31     G3/5V 48 0
49 HD 110108 * 12 40 00.0852307104 -17 41 03.681205044   9.21 8.60     G3V 18 0
50 HD 115341 * 13 16 40.0710619392 -05 34 24.610120752   8.43 7.83     G1V 45 0
51 HD 118563 * 13 38 28.4183030208 -38 19 13.087493724   9.87 9.12     G8V 41 0
52 HD 126829 * 14 28 12.2289142488 -16 06 36.352485072   10.92 9.81     K4+Vk: 34 0
53 HD 131218 * 14 59 39.2251167096 -78 30 39.101831748   9.40 8.74     G3V 41 0
54 HD 136894 * 15 24 02.4279981528 -27 18 18.802157400   8.27 7.53     G8+V 70 0
55 TYC 964-160-1 * 16 32 43.3405417848 +09 47 37.326641568   11.11 10.45     G 6 0
56 HD 155717 * 17 13 21.7190084664 -00 22 53.543834652   10.90 9.88     G5V 25 0
57 HD 158469 * 17 31 19.7571326640 -39 09 55.118534652   8.48 7.94     F8/G2V 44 0
58 HD 162826 * 17 51 14.0224374048 +40 04 20.866168308 7.120 7.070 6.550     F8V 77 0
59 HD 167554 * 18 17 29.6584859448 -38 26 51.746976528   10.53 9.76     K1V 25 0
60 NGC 6633 OpC 18 27 31.2 +06 34 12           ~ 369 0
61 HD 171028 * 18 32 15.4933852584 +06 56 44.685848256   8.93 8.29     G0 62 1
62 HD 175740 * 18 54 52.1770054656 +41 36 09.800403372 7.400 6.490 5.440     G8III 46 0
63 HD 176535 * 19 01 19.4911737264 -13 41 26.481795432   10.9 9.68     K3.5Vk: 31 0
64 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 325 1
65 BD-11 4934B * 19 17 25.0517716968 -11 34 10.284897972   10.85 10.16     G0 5 0
66 HD 181387 * 19 20 18.4794220248 +00 56 17.432904984   10.06 9.52     F3/5+A/F 9 0
67 BD+00 4175B * 19 20 18.6652429992 +00 56 25.154798352   10.44 9.92     ~ 4 0
68 HD 181517 * 19 23 36.9150997392 -53 56 46.075200828   7.60 6.61     K0III 16 0
69 CD-23 15543 * 19 34 09.8265831072 -23 00 59.666984388   11.13 10.07     K3V 26 0
70 HD 186302 * 19 49 06.4303570584 -70 11 16.703275380   9.41 8.76     G3/5V 46 0
71 HD 190204 * 20 05 37.5345443760 -42 15 27.412780788   10.43 9.65     G6V 32 0
72 HD 197300 * 20 43 34.1310384744 -24 41 30.202251072   9.25 8.65     G3V 33 0
73 * gam Mic * 21 01 17.4604727 -32 15 27.957367   5.529 4.654     G8III 82 0
74 * iot Cap BY* 21 22 14.7956478 -16 50 04.359799 5.74 5.18 4.27 3.65 3.17 G7IIIFe-1.5 187 0
75 HD 207889 * 21 52 29.6856293880 -09 25 04.532626164   7.63 7.20     F6V 23 0
76 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1070 1
77 HD 212563 * 22 25 40.4421222480 -24 43 43.732617744   10.37 9.52     K2V 32 0
78 HD 216530 * 22 54 17.3682404280 -43 00 37.249498152   10.90 9.90     K3V 10 0
79 HD 217738 * 23 03 36.8 -56 17 35   9.8 9.2     G 4 0
80 HD 217739 * 23 03 37.6 -56 17 45   9.8 9.2     G0/3 4 0
81 HD 218614 * 23 09 26.7302332800 -12 37 05.774401380   9.45 8.78     G5V 13 0

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2023.02.08-01:38:14

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