FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2019947241> ?p ?o ?g. }

• W2019947241 abstract "Retrieval of orbital parameters of extrasolar planets poses considerable statistical challenges. Due to sparse sampling, measurement errors, parameters degeneracy and modelling limitations, there are no unique values of basic parameters, such as period and eccentricity. Here, we estimate the orbital parameters from radial velocity data in a Bayesian framework by utilizing Markov Chain Monte Carlo (MCMC) simulations with the Metropolis–Hastings algorithm. We follow a methodology recently proposed by Gregory and Ford. Our implementation of MCMC is based on the object-oriented approach outlined by Graves. We make our resulting code, exofit, publicly available with this paper. It can search for either one or two planets as illustrated on mock data. As an example we re-analysed the orbital solution of companions to HD 187085 and HD 159868 from the published radial velocity data. We confirm the degeneracy reported for orbital parameters of the companion to HD 187085, and show that a low-eccentricity orbit is more probable for this planet. For HD 159868, we obtained slightly different orbital solution and a relatively high ‘noise’ factor indicating the presence of an unaccounted signal in the radial velocity data. exofit is designed in such a way that it can be extended for a variety of probability models, including different Bayesian priors." @default.
• W2019947241 created "2016-06-24" @default.
• W2019947241 creator A5003444100 @default.
• W2019947241 creator A5029779160 @default.
• W2019947241 date "2009-04-21" @default.
• W2019947241 modified "2023-09-25" @default.
• W2019947241 title "exofit: orbital parameters of extrasolar planets from radial velocities" @default.
• W2019947241 cites W1974618482 @default.
• W2019947241 cites W1985063315 @default.
• W2019947241 cites W1986316936 @default.
• W2019947241 cites W2027743223 @default.
• W2019947241 cites W2041030645 @default.
• W2019947241 cites W2050740684 @default.
• W2019947241 cites W2056760934 @default.
• W2019947241 cites W2067638714 @default.
• W2019947241 cites W2079765438 @default.
• W2019947241 cites W2087070363 @default.
• W2019947241 cites W2109435540 @default.
• W2019947241 cites W2136555805 @default.
• W2019947241 cites W2138309709 @default.
• W2019947241 cites W2147168671 @default.
• W2019947241 cites W2153208487 @default.
• W2019947241 cites W2256578114 @default.
• W2019947241 cites W3102253795 @default.
• W2019947241 cites W3102611861 @default.
• W2019947241 cites W3106322592 @default.
• W2019947241 cites W3124691892 @default.
• W2019947241 cites W4210924444 @default.
• W2019947241 cites W4230900352 @default.
• W2019947241 cites W4246099101 @default.
• W2019947241 cites W4246450893 @default.
• W2019947241 cites W4251699153 @default.
• W2019947241 doi "https://doi.org/10.1111/j.1365-2966.2008.14385.x" @default.
• W2019947241 hasPublicationYear "2009" @default.
• W2019947241 type Work @default.
• W2019947241 sameAs 2019947241 @default.
• W2019947241 citedByCount "53" @default.
• W2019947241 countsByYear W20199472412012 @default.
• W2019947241 countsByYear W20199472412013 @default.
• W2019947241 countsByYear W20199472412014 @default.
• W2019947241 countsByYear W20199472412017 @default.
• W2019947241 countsByYear W20199472412018 @default.
• W2019947241 countsByYear W20199472412021 @default.
• W2019947241 countsByYear W20199472412022 @default.
• W2019947241 crossrefType "journal-article" @default.
• W2019947241 hasAuthorship W2019947241A5003444100 @default.
• W2019947241 hasAuthorship W2019947241A5029779160 @default.
• W2019947241 hasBestOaLocation W20199472411 @default.
• W2019947241 hasConcept C107673813 @default.
• W2019947241 hasConcept C111350023 @default.
• W2019947241 hasConcept C11413529 @default.
• W2019947241 hasConcept C121332964 @default.
• W2019947241 hasConcept C121864883 @default.
• W2019947241 hasConcept C127413603 @default.
• W2019947241 hasConcept C146978453 @default.
• W2019947241 hasConcept C150846664 @default.
• W2019947241 hasConcept C154945302 @default.
• W2019947241 hasConcept C163479331 @default.
• W2019947241 hasConcept C17744445 @default.
• W2019947241 hasConcept C190538878 @default.
• W2019947241 hasConcept C196644772 @default.
• W2019947241 hasConcept C199539241 @default.
• W2019947241 hasConcept C2777727622 @default.
• W2019947241 hasConcept C41008148 @default.
• W2019947241 hasConcept C41074950 @default.
• W2019947241 hasConcept C44870925 @default.
• W2019947241 hasConcept C51244244 @default.
• W2019947241 hasConcept C60644358 @default.
• W2019947241 hasConcept C86803240 @default.
• W2019947241 hasConcept C97784730 @default.
• W2019947241 hasConceptScore W2019947241C107673813 @default.
• W2019947241 hasConceptScore W2019947241C111350023 @default.
• W2019947241 hasConceptScore W2019947241C11413529 @default.
• W2019947241 hasConceptScore W2019947241C121332964 @default.
• W2019947241 hasConceptScore W2019947241C121864883 @default.
• W2019947241 hasConceptScore W2019947241C127413603 @default.
• W2019947241 hasConceptScore W2019947241C146978453 @default.
• W2019947241 hasConceptScore W2019947241C150846664 @default.
• W2019947241 hasConceptScore W2019947241C154945302 @default.
• W2019947241 hasConceptScore W2019947241C163479331 @default.
• W2019947241 hasConceptScore W2019947241C17744445 @default.
• W2019947241 hasConceptScore W2019947241C190538878 @default.
• W2019947241 hasConceptScore W2019947241C196644772 @default.
• W2019947241 hasConceptScore W2019947241C199539241 @default.
• W2019947241 hasConceptScore W2019947241C2777727622 @default.
• W2019947241 hasConceptScore W2019947241C41008148 @default.
• W2019947241 hasConceptScore W2019947241C41074950 @default.
• W2019947241 hasConceptScore W2019947241C44870925 @default.
• W2019947241 hasConceptScore W2019947241C51244244 @default.
• W2019947241 hasConceptScore W2019947241C60644358 @default.
• W2019947241 hasConceptScore W2019947241C86803240 @default.
• W2019947241 hasConceptScore W2019947241C97784730 @default.
• W2019947241 hasLocation W20199472411 @default.
• W2019947241 hasLocation W20199472412 @default.
• W2019947241 hasLocation W20199472413 @default.
• W2019947241 hasOpenAccess W2019947241 @default.
• W2019947241 hasPrimaryLocation W20199472411 @default.
• W2019947241 hasRelatedWork W1839094326 @default.
• W2019947241 hasRelatedWork W1880070029 @default.
• W2019947241 hasRelatedWork W1974618482 @default.

• next