BEBOP V. Homogeneous stellar analysis of potential circumbinary planet hosts
Abstract
Planets orbiting binary systems are relatively unexplored compared to those around single stars. Detections of circumbinary planets and planetary systems offer a first detailed view into our understanding of circumbinary planet formation and dynamical evolution. The BEBOP (Binaries Escorted by Orbiting Planets) radial velocity survey plays a special role in this adventure as it focuses on eclipsing single-lined binaries with an FGK dwarf primary and M dwarf secondary allowing for the highest-radial velocity precision using the HARPS and SOPHIE spectrographs. We obtained 4512 high-resolution spectra for the 179 targets in the BEBOP survey which we used to derive the stellar atmospheric parameters using both equivalent widths and spectral synthesis. We furthermore derive stellar masses, radii, and ages for all targets. With this work, we present the first homogeneous catalogue of precise stellar parameters for these eclipsing single-lined binaries.
Citation
Freckelton , A V , Sebastian , D , Mortier , A , Triaud , A H M J , Maxted , P F L , Acuña , L , Armstrong , D J , Battley , M P , Baycroft , T A , Boisse , I , Bourrier , V , Carmona , A , Coleman , G A L , Cameron , A C , Cortés-Zuleta , P , Delfosse , X , Dransfield , G , Duck , A , Forveille , T , French , J R , Hara , N , Heidari , N , Hellier , C , Kunovac , V , Martin , D V , Martioli , E , McCormac , J J , Nelson , R P , Sairam , L , Sousa , S G , Standing , M R & Willett , E 2024 , ' BEBOP V. Homogeneous stellar analysis of potential circumbinary planet hosts ' , Monthly Notices of the Royal Astronomical Society , vol. 531 , no. 4 , pp. 4085–4098 . https://doi.org/10.1093/mnras/stae1405
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
ISSN
0035-8711Type
Journal article
Description
Funding: This research is supported from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 803193/BEBOP), and by a Leverhulme Trust Research Project Grant (no. RPG-2018-418). ACC acknowledges support from STFC consolidated grant numbers ST/R000824/1 and ST/V000861/1. PM and NM were supported by STFC grant number ST/S001301/1. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (project SPICE DUNE, grant agreement no. 947634). DJA is supported by UKRI through the STFC (ST/R00384X/1) and EPSRC (EP/X027562/1). AC acknowledge funding from the French ANR under contract number ANR18CE310019 (SPlaSH). This work is supported by the French National Research Agency in the framework of the Investissements d’Avenir program (ANR-15-IDEX-02), through the funding of the ‘Origin of Life’ project of the Grenoble-Alpes University. EW acknowledges support from the ERC Consolidator Grant funding scheme (project ASTEROCHRONOMETRY, grant agreement no. 772293 http://www.asterochronometry.eu). MRS acknowledges support from the UK Science and Technology Facilities Council (ST/T000295/1).Collections
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