Modeling Keplerian Orbits of Stars, Brown Dwarfs, and Planets

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Northern Kentucky University
Any companion object (Star, Brown Dwarf, or Planet) that orbits a star follows a Keplerian Orbit. In our project, we used a mock catalog of companions that was designed to mimic the APOGEE surveys. The goal of our project was to compare the effectiveness of Markov-Chain Monte Carlo (MCMC) techniques with more traditional orbital fitting methods for deriving correct companion orbits from radial velocity data. We investigated how well we could recover orbital parameters as a function of parameter space, and in particular, we focused on the trade-offs between computational time and precision.
2020 Celebration of Student Research and Creativity presentation
Kepler's laws, Markov processes, Stars Orbits