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GECCO
2010
Springer

Fitting multi-planet transit models to photometric time-data series by evolution strategies

8 years 8 months ago
Fitting multi-planet transit models to photometric time-data series by evolution strategies
In this paper we present the application of an evolution strategy to the problem of detecting multi-planet transit events in photometric time-data series. Planetary transits occur when a planet regularly eclipses its host star, reducing stellar luminosity. The transit method is amongst the most successful detection methods for exoplanets and is presently performed by space telescope missions. The goal of the presented algorithm is to find high quality fits of multi-planet transit models to observational data, which is a challenging computational task. In particular we present a method for an effective objective function evaluation and show how the algorithm can be implemented on graphics processing units. Results on artificial test data with three artificial planets are reported. Categories and Subject Descriptors I.2.8 [Computing Methodologies]: Artificial Intelligence—Problem Solving, Control Methods, and Search ; G.4 [Mathematics of Computing]: Mathematical Software— Algor...
Andreas M. Chwatal, Günther R. Raidl, Michael
Added 19 Jul 2010
Updated 19 Jul 2010
Type Conference
Year 2010
Where GECCO
Authors Andreas M. Chwatal, Günther R. Raidl, Michael Zöch
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