TESS Hunt for Young and Maturing Exoplanets (THYME): A Planet in the 45 Myr Tucana–Horologium Association

  title={TESS Hunt for Young and Maturing Exoplanets (THYME): A Planet in the 45 Myr Tucana–Horologium Association},
  author={Elisabeth R. Newton and Andrew W. Mann and Benjamin M. Tofflemire and Logan A. Pearce and Aaron C. Rizzuto and Andrew M. Vanderburg and Raquel A. Martinez and Jason J. Wang and Jean-Baptiste Ruffio and Adam L. Kraus and Marshall C. Johnson and Pa Chia Thao and Mackenna L. Wood and Rayna Rampalli and Eric L. Nielsen and Karen A. Collins and Diana Dragomir and Coel Hellier and D. R. Anderson and Thomas Barclay and Carolyn J. Brown and Gregory A. Feiden and Rhodes Hart and G. Isopi and John F. Kielkopf and Franco Mallia and Peter F. Nelson and Joseph E. Rodriguez and Christopher Stockdale and Ian A. Waite and Duncan J. Wright and Jack J. Lissauer and George R. Ricker and Roland K. Vanderspek and David W. Latham and Sara Seager and Joshua N. Winn and Jon M. Jenkins and Luke G. Bouma and Christopher J. Burke and Misty D. Davies and Michael M. Fausnaugh and Jie Li and Robert Morris and Koji Mukai and Joel S. Villasenor and Steven Villeneuva and Robert J. de Rosa and Bruce A. Macintosh and Matthew W. Mengel and Jack Okumura and Robert A. Wittenmyer},
  journal={The Astrophysical Journal Letters},
Young exoplanets are snapshots of the planetary evolution process. Planets that orbit stars in young associations are particularly important because the age of the planetary system is well constrained. We present the discovery of a transiting planet larger than Neptune but smaller than Saturn in the 45 Myr Tucana–Horologium young moving group. The host star is a visual binary, and our follow-up observations demonstrate that the planet orbits the G6V primary component, DS Tuc A (HD 222259A, TIC… 

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