Characterisation of B-type stars in four young Galactic open clusters. I. Stellar content and binary properties

Supporting data of the peer-reviewed paper "Characterisation of B-type stars in four young Galactic open clusters. I. Stellar content and binary properties" published on MNRAS in 2025. For the purpose of open access, the authors have applied a CC BY licence to the author accepted manuscript version: https://arxiv.org/abs/2505.08955 The HERMES spectra used in this work are available upon reasonable request to the authors, or the PI of HERMES instrument: https://fys.kuleuven.be/ster/instruments/the-hermes-spectrograph The GAIA data used in this work are publicly available via the Gaia website: https://gea.esac.esa.int/archive/. The Padova database of stellar evolutionary tracks and isochrones is publicly available via the website: https://stev.oapd.inaf.it/cgi-bin/cmd. This work was supported by the UK Research and Innovation (UKRI) in the form of a Frontier Research grant under the UK government’s ERC Horizon Europe funding guarantee (SYMPHONY; PI Bowman; grant number: EP/Y031059/1), and a Royal Society University Research Fellowship (PI Bowman; grant number: URF\R1\231631). The research leading to these results has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (MULTIPLES; PI Sana; grant agreement number 772225). This research has used data obtained at the Mercator Observatory which receives funding from the Research Foundation – Flanders (FWO) (grant agreements I000325N and I000521N).