Merle, Thibault

Talk presented at Binary stars in the Space Era on 2025-07-04

Abstract: The properties of binary stars are fundamental for understanding star for- mation and evolution. Spectroscopic binaries (SBs) are genuine binaries that probe short to intermediate orbital periods, shedding light on various stellar evolution pathways. We propose: (i) to present the current status of the Ninth Catalogue of Spectroscopic Orbits (SB9) with the recent Non- Single Stars catalogue from Gaia DR3, focusing on SBs; (ii) to provide insights into the detectability and characterisation of SBs in a forthcoming large multi-object spectroscopic survey 4MOST, which is set to begin operations early next year.

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Funding: BELSPO/FED-tWIN Prf-2020-033 BISTRO/FED-tWIN Prf-2020-033 BISTRO