For the two exoplanet systems, we revise the stellar and planetary parameters, taking into account the newly-determined age. MELANGE-3 may be one edge of the recently identified Theia 316 stream, also estimated to be approximately 108 Myr. The resulting rotation sequence, lithium levels, and color-magnitude diagram of members are all consistent with the Pleiades, confirming the population is co-eval and providing an age estimate of 105☑0 Myr. To better determine the age and membership of MELANGE-3, we combine archival light curves, velocities, and astrometry, with new high-resolution spectra of stars nearest KOI-3876 spatially and kinematically. We initially identified MELANGE-3 by searching for kinematic and spatial overdensities around stars with high levels of lithium (in this case, KOI-3876). We describe a young association (MELANGE-3) in the Kepler field harboring two transiting planetary systems (KOI-3876 and Kepler-970). View Poster Transit Hunt for Young and Maturing Exoplanets (THYME) VIII: A Pleiades-age Association Harboring Two Transiting Planetary Systems from Kepler High-Altitude Ballooning Team Challenge & Competition.Community College High Altitude Ballooning Team Challenge and Competition.Team Experience and Competition Grant Program.STEM Pre-Service Teacher Education Scholarships.NC Sea Grant – NC Space Grant Graduate Research Fellowship.Diversity, Equity, Inclusion, Justice and Accessibility (DEIJA).Toggle navigation North Carolina Space Grant
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