The N2K Consortium. II. A Transiting Hot Saturn around HD 149026 with a Large Dense Core

  title={The N2K Consortium. II. A Transiting Hot Saturn around HD 149026 with a Large Dense Core},
  author={Bun’ei Sato and Debra A. Fischer and Gregory W. Henry and Gregory P. Laughlin and R. Paul Butler and Geoffrey W. Marcy and Steven S. Vogt and Peter Bodenheimer and Shigeru Ida and Eri Toyota and Aaron S. Wolf and Jeff A. Valenti and Louis J. Boyd and John Asher Johnson and Jason T. Wright and Mark Ammons and Sarah Robinson and Jay Strader and Chris McCarthy and K. L. Tah and Dante Minniti},
  journal={The Astrophysical Journal},
Doppler measurements from Subaru and Keck have revealed radial velocity variations in the V = 8.15, G0 IV star HD 149026 consistent with a Saturn-mass planet in a 2.8766 day orbit. Photometric observations at Fairborn Observatory have detected three complete transit events with depths of 0.003 mag at the predicted times of conjunction. HD 149026 is now the second-brightest star with a transiting extrasolar planet. The mass of the star, based on interpolation of stellar evolutionary models, is 1… 

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