TrES-2: The First Transiting Planet in the Kepler Field | Zendy

Francis T. O’Donovan | Zendy; David Charbonneau | Zendy; Georgi Mandushev | Zendy; Edward W. Dunham | Zendy; David W. Latham | Zendy; Guillermo Torres | Zendy; A. Sozzetti | Zendy; Timothy M. Brown | Zendy; John T. Trauger | Zendy; Juan Antonio Belmonte | Zendy; M. Rabus | Zendy; J. M. Almenara | Zendy; R. Alonso | Zendy; H. J. Deeg | Zendy; Gilbert A. Esquerdo | Zendy; E. Falco | Zendy; Lynne A. Hillenbrand | Zendy; Anna Roussanova | Zendy; R. P. Stefanik | Zendy; Joshua N. Winn | Zendy

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TrES-2: The First Transiting Planet in the Kepler Field

Author(s) -

Francis T. O’Donovan,

David Charbonneau,

Georgi Mandushev,

Edward W. Dunham,

David W. Latham,

Guillermo Torres,

A. Sozzetti,

Timothy M. Brown,

John T. Trauger,

Juan Antonio Belmonte,

M. Rabus,

J. M. Almenara,

R. Alonso,

H. J. Deeg,

Gilbert A. Esquerdo,

E. Falco,

Lynne A. Hillenbrand,

Anna Roussanova,

R. P. Stefanik,

Joshua N. Winn

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/509123

Subject(s) - exoplanet , planet , physics , photometry (optics) , astronomy , radial velocity , astrophysics , planetary system , radius , orbit (dynamics) , stars , engineering , aerospace engineering , computer security , computer science

We announce the discovery of the second transiting hot Jupiter discovered bythe Trans-atlantic Exoplanet Survey. The planet, which we dub TrES-2, orbitsthe nearby star GSC 03549-02811 every 2.47063 days. From high-resolutionspectra, we determine that the star has T_eff = 5960 +/- 100 K and log(g) = 4.4+/- 0.2, implying a spectral type of G0V and a mass of 1.08 +0.11/-0.05 M_sun.High-precision radial-velocity measurements confirm a sinusoidal variation withthe period and phase predicted by the photometry, and rule out the presence ofline-bisector variations that would indicate that the spectroscopic orbit isspurious. We estimate a planetary mass of 1.28 +0.09/-0.04 M_Jup. We model B,r, R, and I photometric timeseries of the 1.4%-deep transits and find aplanetary radius of 1.24 +0.09/-0.06 R_Jup. This planet lies within the fieldof view of the NASA Kepler mission, ensuring that hundreds of upcoming transitswill be monitored with exquisite precision and permitting a host ofunprecedented investigations.Comment: Accepted for publication in ApJL. 15 pages, 2 figure

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