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dc.contributor.authorFeng, Fabo
dc.contributor.authorAnglada-Escudé, Guillem
dc.contributor.authorTuomi, Mikko
dc.contributor.authorJones, Hugh R. A.
dc.contributor.authorChanamé, Julio
dc.contributor.authorButler, Paul R.
dc.contributor.authorJanson, Markus
dc.date.accessioned2019-12-10T09:50:15Z
dc.date.available2019-12-10T09:50:15Z
dc.date.issued2019-10-21
dc.identifier.citationFeng , F , Anglada-Escudé , G , Tuomi , M , Jones , H R A , Chanamé , J , Butler , P R & Janson , M 2019 , ' Detection of the nearest Jupiter analog in radial velocity and astrometry data ' , Monthly Notices of the Royal Astronomical Society , vol. 490 , no. 4 , stz2912 , pp. 5002–5016 . https://doi.org/10.1093/mnras/stz2912
dc.identifier.issn0035-8711
dc.identifier.otherArXiv: http://arxiv.org/abs/1910.06804v1
dc.identifier.otherORCID: /0000-0001-6039-0555/work/66039345
dc.identifier.urihttp://hdl.handle.net/2299/21974
dc.description© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractThe presence of Jupiter is crucial to the architecture of the Solar System and models underline this to be a generic feature of planetary systems. We find the detection of the difference between the position and motion recorded by the contemporary astrometric satellite Gaia and its precursor Hipparcos can be used to discover Jupiter-like planets. We illustrate how observations of the nearby star $\varepsilon$ Indi A giving astrometric and radial velocity data can be used to independently find the orbit of its suspected companion. The radial velocity and astrometric data provide complementary detections which allow for a much stronger solution than either technique would provide individually. We quantify $\varepsilon$ Indi A b as the closest Jupiter-like exoplanet with a mass of 3 $M_{Jup}$ on a slightly eccentric orbit with an orbital period of 45 yr. While other long-period exoplanets have been discovered, $\varepsilon$ Indi A b provides a well constrained mass and along with the well-studied brown dwarf binary in orbit around $\varepsilon$ Indi A means that the system provides a benchmark case for our understanding of the formation of gas giant planets and brown dwarfs.en
dc.format.extent4413260
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectastro-ph.EP
dc.subjectastro-ph.SR
dc.titleDetection of the nearest Jupiter analog in radial velocity and astrometry dataen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionCentre of Data Innovation Research
dc.description.statusPeer reviewed
rioxxterms.versionofrecord10.1093/mnras/stz2912
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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