Assessment of the potential of the new Belgo-Moroccan telescope TRAPPIST-North for high-precision exoplanet transit photometry

Frontiers in Theoretical and Applied Physics/UAE 2017

Barkaoui, K.^1 ; Gillon, M.^2 ; Benkhaldoun, Z.^1 ; Emmanuel, J.^2 ; Elhalkouj, T.^1 ; Daassou, A.^1 ; Burdanov, A.^2 ; Delrez, L.^2

Oukaimeden Observatory, LPHEA, FSSM, Cadi Ayyad University, Morocco^1

STAR Institute, University of Liege, Belgium^2

关键词: Bayesian Analysis;    Exoplanet;    High potential;    High-precision;    Light curves;    Markov Chain Monte-Carlo;    Robotic telescope;    Transit photometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/869/1/012073/pdf
DOI  :  10.1088/1742-6596/869/1/012073

来源: IOP

【 摘 要 】

We present the observation of a transit of the exoplanet TrES-3b by the newly commissioned robotic telescope TRAPPIST-North located at Oukaimeden Observatory (Morocco). The obtained light curve reaches a photometric precison 600 ppm. Its Bayesian analysis with a Markov Chain Monte Carlo code enables us to refine the radius of the planet to Rp= 1.346+0.065 -0.050 RJup. These results demonstrate the high potential of TRAPPIST-North for high-photometry of exoplanet transits.