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dc.contributor.authorButler, R. Paul
dc.contributor.authorVogt, Steven S.
dc.contributor.authorLaughlin, Gregory
dc.contributor.authorBurt, Jennifer A.
dc.contributor.authorRivera, Eugenio J.
dc.contributor.authorTuomi, Mikko
dc.contributor.authorTeske, Johanna
dc.contributor.authorArriagada, Pamela
dc.contributor.authorDiaz, Matias
dc.contributor.authorHolden, Brad
dc.contributor.authorKeiser, Sandy
dc.date.accessioned2017-05-25T17:35:05Z
dc.date.available2017-05-25T17:35:05Z
dc.date.issued2017-04-13
dc.identifier.citationButler , R P , Vogt , S S , Laughlin , G , Burt , J A , Rivera , E J , Tuomi , M , Teske , J , Arriagada , P , Diaz , M , Holden , B & Keiser , S 2017 , ' The LCES HIRES/Keck Precision Radial Velocity Exoplanet Survey ' , The Astrophysical Journal , vol. 153 , no. 5 . https://doi.org/10.3847/1538-3881/aa66ca
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 11185685
dc.identifier.otherPURE UUID: 216fe9fc-ef0e-444b-8d17-42eb707742e7
dc.identifier.otherArXiv: http://arxiv.org/abs/1702.03571v1
dc.identifier.otherScopus: 85019024442
dc.identifier.urihttp://hdl.handle.net/2299/18220
dc.descriptionThis document is the Accepted Manuscript version of the following article: R. Paul Butler, et al, The LCES HIRES/Keck Precision Radial Velocity Exoplanet Survey, The Astronomical Journal, Vol 153 (5), 19 pp., published 13 April 2017. The Version of Record is available online at doi: https://doi.org/10.3847/1538-3881/aa66ca. Paper data available at: http://home.dtm.ciw.edu/ebps/data/. © 2017. The American Astronomical Society. All rights reserved.
dc.description.abstractWe describe a 20-year survey carried out by the Lick-Carnegie Exoplanet Survey Team (LCES), using precision radial velocities from HIRES on the Keck-I telescope to find and characterize extrasolar planetary systems orbiting nearby F, G, K, and M dwarf stars. We provide here 60,949 precision radial velocities for 1,624 stars contained in that survey. We tabulate a list of 357 significant periodic signals that are of constant period and phase, and not coincident in period and/or phase with stellar activity indices. These signals are thus strongly suggestive of barycentric reflex motion of the star induced by one or more candidate exoplanets in Keplerian motion about the host star. Of these signals, 225 have already been published as planet claims, 60 are classified as significant unpublished planet candidates that await photometric follow-up to rule out activity-related causes, and 54 are also unpublished, but are classified as "significant" signals that require confirmation by additional data before rising to classification as planet candidates. Of particular interest is our detection of a candidate planet with a minimum mass of 3.9 Earth masses and an orbital period of 9.9 days orbiting Lalande 21185, the fourth-closest main sequence star to the Sun. For each of our exoplanetary candidate signals, we provide the period and semi-amplitude of the Keplerian orbital fit, and a likelihood ratio estimate of its statistical significance. We also tabulate 18 Keplerian-like signals that we classify as likely arising from stellar activity.en
dc.format.extent19
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectastro-ph.EP
dc.subjectstars: planetary systems
dc.titleThe LCES HIRES/Keck Precision Radial Velocity Exoplanet Surveyen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2017-02-12
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.3847/1538-3881/aa66ca
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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