THE PAN-PACIFIC PLANET SEARCH. VI. GIANT PLANETS ORBITING HD 86950 AND HD 222076

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dc.contributor.authorWittenmyer, Robert A.
dc.contributor.authorJones, M. I.
dc.contributor.authorZhao, Jinglin
dc.contributor.authorMarshall, J. P.
dc.contributor.authorButler, R. P.
dc.contributor.authorTinney, C. G.
dc.contributor.authorWang, Liang
dc.contributor.authorJohnson, John Asher
dc.date.accessioned2024-01-10T14:22:04Z
dc.date.available2024-01-10T14:22:04Z
dc.date.issued2017
dc.description.abstractWe report the detection of two new planets orbiting the K giants HD 86950 and HD 222076, based on precise radial velocities obtained with three instruments: AAT/UCLES, FEROS, and CHIRON. HD 86950b has a period of 1270 +/- 57 days at a=2.72 +/- 0.08 AU, and m sin i=3.6 +/- 0.7 M-Jup. HD 222076b has P=871 +/- 19 days at a=1.83 +/- 0.03 AU, and m sin i=1.56 +/- 0.11 M-Jup. These two giant planets are typical of the population of planets known to orbit evolved stars. In addition, we find a high-amplitude periodic velocity signal (K similar to 50 m/s(-1)) in HD 29399, and show that it is due to stellar variability rather than Keplerian reflex motion. We also investigate the relation between planet occurrence and host-star metallicity for the 164-star Pan-Pacific Planet Search sample of evolved stars. In spite of the small sample of PPPS detections, we confirm the trend of increasing planet occurrence as a function of metallicity found by other studies of planets orbiting evolved stars.
dc.description.funderFONDECYT
dc.format.extent12 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-3881/153/2/51
dc.identifier.eissn1538-3881
dc.identifier.issn0004-6256
dc.identifier.urihttps://doi.org/10.3847/1538-3881/153/2/51
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79851
dc.identifier.wosidWOS:000405781100001
dc.information.autorucFísica;Jones MI;S/I;1013827
dc.issue.numero2
dc.language.isoen
dc.nota.accesoSin adjunto
dc.publisherIOP PUBLISHING LTD
dc.revistaASTRONOMICAL JOURNAL
dc.rightsregistro bibliográfico
dc.subjectplanetary systems
dc.subjectstars: individual(HD 29399, HD 86950, HD 222076)
dc.subjecttechniques: radial velocities
dc.subjectPRECISE RADIAL-VELOCITIES
dc.subjectSPECTROSCOPIC STELLAR PARAMETERS
dc.subjectALL-SKY SURVEY
dc.subjectEVOLVED STARS
dc.subjectHOST STAR
dc.subjectFUNDAMENTAL PARAMETERS
dc.subjectHABITABLE-ZONE
dc.subjectMASS STARS
dc.subjectMETALLICITY
dc.subjectCOMPANIONS
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleTHE PAN-PACIFIC PLANET SEARCH. VI. GIANT PLANETS ORBITING HD 86950 AND HD 222076
dc.typeartículo
dc.volumen153
sipa.codpersvinculados1013827
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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