Discovering Exoplanets, When Things Do Not Go As Planned

  • CART Astrophysics Seminar Series

October 3, 2024 2:00 PM
PAIS 3205

Host:
Diana Dragomir
Presenter:
Brett Skinner
The Transiting Exoplanet Survey Satellite (TESS) has aided in the discovery of hundreds of exoplanets, with the current running total being of 5,500 exoplanets. TESS’s unique observing strategy is ideal for finding short period, massive exoplanets around bright stars. Recent work has focused on searching for larger period exoplanets that only have one TESS transit. This study investigates the challenges related to constraining the properties of the single-transiting HD115587b. Our challenges in this ongoing study include barycentric correlations in the radial velocities possibly due to a period equal to that of Earth, and follow-up transits not being seen at extrapolated epochs in TESS extended mission observations. While this study has been ongoing due to the challenges from long period, single-transit targets, it also adds to the interests in the peculiarity of the system. Most notably, the inconsistencies between the photometric and radial velocity data creating a possibility of a multi-planet system.

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