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  • Research Giant Presentation The Gifts That Keep on Giving: Known Exoplanetary Systems

Research Giant Presentation - The Gifts That Keep on Giving: Known Exoplanetary Systems

Presented by Professor Stephen Kane, University of California, Riverside

Date: 04 September 2019
Time: 12:00 PM - 1:00 PM
Venue: Toowoomba - Y103, or via Zoom webinar
Contact: For more information, please contact Jonti Horner.
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 As the number of known exoplanets rapidly heads towards 5000, attention is focusing on statistical and demographic studies. However, there are many lessons to be learned from deeper studies of known systems, particularly in the era of the Transiting Exoplanet Survey Satellite (TESS). For example, it remains unknown if many of the radial velocity detected exoplanets transit their host stars. Since these host stars are relatively bright, they provide numerous opportunities for detailed characterization of the systems, such as transmission spectroscopy, orbital dynamics, and potential targets for future imaging missions. In this talk Professor Kane  will primarily describe our TESS program that is conducting high cadence observations of the exoplanet host stars. These targets include known transiting planets, from which we combine photometry with updated planetary orbits from radial velocity analyses. Our program has searched for transits and phase variations for these systems, refined transit ephemerides, and collaborated with numerous other teams who are using our TESS program data to characterize known exoplanetary systems. In this presentation we provide a summary of TESS science achieved thus far for the known exoplanets, including new results on transit searches, detection of phase variations, and refinement of planetary orbits, particularly for systems observed by TESS over multiple sectors. Professor Kane will provide details for observation statistics regarding overall expectations for TESS detections in known systems and how these discoveries contribute to the overall TESS yield in terms of exoplanet demographics.