000006668 001__ 6668
000006668 005__ 20240125153628.0
000006668 037__ $$aSEMIN-2024-0018
000006668 100__ $$aMerle, Thibault
000006668 245__ $$aSpectroscopic binaries and higher-order systems in large surveys 
000006668 260__ $$c2023
000006668 269__ $$c2023-11-07
000006668 520__ $$aMultiplicity among field and cluster stars is ubiquitous. The properties of binary stars are therefore fundamental to understand how stars were formed and how they evolve. Interaction processes between components may lead to complex outcomes like chemically peculiar stars, stripped stars, transients and merger events. Binaries are easily identified through radial velocity variations measured in spectroscopy. Large spectroscopic surveys, like the Gaia-ESO survey (GES), are providing high accuracy radial velocities and chemical abundances for hundreds of thousands of stars. Among them, spectroscopic multiple stellar systems (spectroscopic binaries with one ore more visible components: SBn, with n ≥ 1) deserve special investigation since the determined radial velocities and chemical abundances could be potentially affected by multiplicity. In this talk, I will summarize the findings obtained in the GES in terms of stellar multiplicity and the statistical properties of binary stars and present perspective in the context of other surveys (GALAH, 4MOST, MSE).
000006668 536__ $$aPrf-2020-033_BISTRO/$$cPrf-2020-033_BISTRO/$$fPrf-2020-033_BISTRO
000006668 594__ $$aNO
000006668 773__ $$tLjubljana University
000006668 8560_ $$fthibault.merle@ksb-orb.be
000006668 8564_ $$s9483649$$uhttp://publi2-as.oma.be/record/6668/files/presentation_ljubljana.pdf
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000006668 980__ $$aSEMIN