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Carmichael","submitted_at":"2025-09-23T01:10:09Z","abstract_excerpt":"We present TOI-2155\\,b, a massive transiting companion, discovered using data from NASA's Transiting Exoplanet Survey Satellite (TESS) mission and confirmed with ground-based RV measurements from the Tillinghast Reflector Echelle Spectrograph (TRES). We also analyze ground-based follow-up photometric data from the Wendelstein Observatory (WST), Las Cumbres Observatory Global Telescope (LCOGT), and Wild Boar Remote Observatory (WBR). TOI-2155\\,b is a short-period companion with {$P= 3.7246950 \\pm{0.0000014}$}~days. 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