| Issue |
EAS Publications Series
Volume 67-68, 2014
The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases
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|
|---|---|---|
| Page(s) | 127 - 131 | |
| Section | The Stellar Constituents of the Milky Way | |
| DOI | https://doi.org/10.1051/eas/1567022 | |
| Published online | 17 July 2015 | |
N.A. Walton, F. Figueras, L. Balaguer-Núñez and C. Soubiran (eds)
EAS Publications Series, 67–68 (2014) 127-131
Quest for the Sun's siblings based on elemental abundances
1 Lund Observatory, Department of Astronomy and Theoretical Physics, Box 43, 22100 Lund, Sweden
2 Leiden Observatory, University of Leiden, PB. 9513, Leiden 2300 RA, The Netherlands
e-mail: cheng@astro.lu.se
We present stellar parameters, stellar ages, and detailed elemental abundances for Na, Mg, Al, Si, Ca, Ti, Cr, Fe, and Ni for 32 solar sibling candidates. Technique of chemical tagging gives us a high probability that four stars might be from the same open cluster. Only one candidate HIP 40317 which has solar metallicity and age could be a solar sibling. We performed simulations of the Sun's birth cluster in analytical Galactic model and found that there is quite low probability to find solar siblings with radial velocity up to Vr = 34.2 km s−1.
© EAS, EDP Sciences, 2015