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dc.contributor.authorTuomi, Mikko
dc.contributor.authorKotiranta, S.
dc.date.accessioned2017-03-07T18:09:46Z
dc.date.available2017-03-07T18:09:46Z
dc.date.issued2009-03-01
dc.identifier.citationTuomi , M & Kotiranta , S 2009 , ' Bayesian analysis of the radial velocities of HD 11506 reveals another planetary companion ' , Astronomy and Astrophysics , vol. 496 , no. 2 , pp. L13-L16 . https://doi.org/10.1051/0004-6361/200811531
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 11129960
dc.identifier.otherPURE UUID: 0392f9d2-07a3-49db-bca1-e48a556a15ff
dc.identifier.otherScopus: 62749175788
dc.identifier.urihttp://hdl.handle.net/2299/17683
dc.descriptionM. Tuomi and S. Kotirana, 'Bayesian analysis of the radial velocities of HD 11506 reveals another planetary companion', Astronomy & Astrophysics, Vol. 496 (2), L13-L16, first published online 24 February 2009. The version of record is available online at doi: 10.1051/0004-6361/200811531 Published by EDP Sciences © ESO 2009
dc.description.abstractAims. We aim to demonstrate the efficiency of a Bayesian approach in analysing radial velocity data by reanalysing a set of radial velocity measurements. Methods. We present Bayesian analysis of a recently published set of radial velocity measurements known to contain the signal of one extrasolar planetary candidate, namely, HD 11506. The analysis is conducted using the Markov chain Monte Carlo method and the resulting distributions of orbital parameters are tested by performing direct integration of randomly selected samples with the Bulirsch-Stoer method. The magnitude of the stellar radial velocity variability, known as jitter, is treated as a free parameter with no assumptions about its magnitude. Results. We show that the orbital parameters of the planet known to be present in the data correspond to a different solution when the jitter is allowed to be a free parameter. We also show evidence of an additional candidate, a 0.8 MJup planet with period of about 0.5 yr in orbit around HD 11506. This second planet is inferred to be present with a high level of confidence.en
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectMethods: statistical
dc.subjectPlanetary systems
dc.subjectStars: individual: HD 11506
dc.subjectTechniques: radial velocities
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleBayesian analysis of the radial velocities of HD 11506 reveals another planetary companionen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=62749175788&partnerID=8YFLogxK
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2009-02-14
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1051/0004-6361/200811531
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc/4.0/
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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