Closure phase studies toward direct detection of light from hot Jupiters

Ming Zhao, John D. Monnier, Theo ten Brummelaar, Ettore Pedretti, Nathalie Thureau

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Precision closure phase measurements obtained with ground-based long baseline optical interferometers is a promising way to directly detect light from nearby hot Jupiters. Here we present our closure phase simulations for the CHARA array for several bright hot Jupiters, ¿And b, 51 Peg b, and ¿ Boo b. The maximum possible closure phase signals from these hot Jupiters are very small, for example, only 0.17degrees for ¿ And b, requiring very high precision and stable closure phase measurements. We present preliminary results of a closure phase study on test object ß Tau and hot Jupiter system ¿ And,both obtained with the MIRC instrument at the CHARA array. We demonstrate that directly detecting the light from hot Jupiters is feasible using high precision closure phase measurements obtained by CHARA-MIRC along with its sub-milli-arcsecond resolution, although challenges remain.
Original languageEnglish
Title of host publicationExoplanets: Detection, Formation and Dynamics
Subtitle of host publicationProceedings of the International Astronomical Union, IAU Symposium
Publication statusPublished - 1 May 2008


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