TrES-4: A Transiting Hot Jupiter of Very Low Density

  title={TrES-4: A Transiting Hot Jupiter of Very Low Density},
  author={Georgi I. Mandushev and Francis T. O'Donovan and David Charbonneau and Guillermo Torres and David W. Latham and G'asp'ar 'A. Bakos and Edward Wood Dunham and Alessandro Sozzetti and Jos'e Miguel Fern'andez and Gilbert A. Esquerdo and Mark E. Everett and Timothy M. Brown and Markus Rabus and Juan Antonio Taguenca Belmonte and L. A. Hillenbrand},
  journal={The Astrophysical Journal},
We report the discovery of TrES-4, a hot Jupiter that transits the star GSC 02620-00648 every 3.55 days. From high-resolution spectroscopy of the star, we estimate a stellar effective temperature of K, and T p 6100 150 eff from high-precision z and B photometry of the transit we constrain the ratio of the semimajor axis a and the stellar radius to be . We compare these values to model stellar isochrones to constrain the stellar Ra /R p 6.03 0.13 ∗∗ mass to be . Based on this estimate and the… Expand

Figures and Tables from this paper

WASP-4b: A 12th magnitude transiting hot jupiter in the southern hemisphere
We report the discovery of WASP-4b, a large transiting gas-giant planet with an orbital period of 1.34 days. This is the first planet to be discovered by the SuperWASP-South observatory and CORALIEExpand
Discovery and Atmospheric Characterization of Giant Planet Kepler-12b: An Inflated Radius Outlier
We report the discovery of planet Kepler-12b (KOI-20), which at 1.695 ± 0.030 R_J is among the handful of planets with super-inflated radii above 1.65 R_J. Orbiting its slightly evolved G0 host withExpand
HAT-P-4b: A Metal-rich Low-Density Transiting Hot Jupiter
We describe the discovery of HAT-P-4b, a low-density extrasolar planet transiting BD+36 2593, a V = 11.2mag slightly evolved metal-rich late F star. The planet’s orbital period is 3.056536 ±Expand
We report on the discovery of HAT-P-12b, a transiting extrasolar planet orbiting the moderately bright V ≈ 12.8 K4 dwarf GSC 03033 – 00706, with a period P = 3.2130598 ± 0.0000021 d, transit epochExpand
HAT-P-5b: A Jupiter-like Hot Jupiter Transiting a Bright Star*
We report the discovery of a planet transiting a moderately bright (V = 12.00) G star, with an orbital period of 2.788491 ± 0.000025 days. From the transit light curve we determine that the radius ofExpand
We present the results of a deep, wide-field search for transiting hot Jupiter (HJ) planets in the globular cluster ? Centauri. As a result of a 25 night observing run with the ANU 40 inch (1 m)Expand
Wasp-22 b: A transiting "hot jupiter" planet in a hierarchical triple system
High-resolution spectroscopy obtained with the CORALIE and HARPS spectrographs confirms the presence of a planetary mass companion with an orbital period of 3.533 days in a near-circular orbit in the star TYC 6446-326-1. Expand
WASP-39b: a highly inflated Saturn-mass planet orbiting a late G-type star
The discovery of WASP-39b is presented, a highly inflated transiting Saturn-mass planet orbiting a late G-type dwarf star, and the metallicity and temperatures are found to have an equilibrium temperature of 1116 +33 −32 K. Expand
High‐precision transit observations of the exoplanet WASP‐13b with the RISE instrument
WASP-13b is a sub-Jupiter mass exoplanet orbiting a G1V type star with a period of 4.35 d. The current uncertainty in its impact parameter (0 < b < 0.46) results in poorly defined stellar andExpand
Parameters and Predictions for the Long-Period Transiting Planet HD 17156b
We report high-cadence time series photometry of the recently discovered transiting exoplanet system HD 17156, spanning the time of transit on UT 2007 October 1, from three separate observatories. WeExpand


TrES-3: A Nearby, Massive, Transiting Hot Jupiter in a 31 Hour Orbit
We describe the discovery of a massive transiting hot Jupiter with a very short orbital period (1.30619 days), which we name TrES-3. From spectroscopy of the host star GSC 03089-00929, we measureExpand
TrES-2 : The first transiting planet in the kepler field
We announce the discovery of the second transiting hot Jupiter discovered by the Trans-atlantic Exoplanet Survey. The planet, which we dub TrES-2, orbits the nearby star GSC 03549-02811 every 2.47063Expand
TrES-1: The Transiting Planet of a Bright K0 V Star
We report the detection of a transiting Jupiter-sized planet orbiting a relatively bright (V = 11.79) K0 V star. We detected the transit light-curve signature in the course of the TrES multisiteExpand
The transit light curve project. I. Four consecutive transits of the exoplanet XO-1b
We present RIz photometry of four consecutive transits of the newly discovered exoplanet XO-1b. We improve on the estimates of the transit parameters, finding the planetary radius to be RP = 1.184Expand
Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2
We report on a spectroscopic determination of the atmospheric parameters and chemical abundance of the parent star of the recently discovered transiting planet TrES-2. A detailed LTE analysis of aExpand
The Transit Light Curve Project. III. Tres Transits of TrES-1
We present z-band photometry of three consecutive transits of the exoplanet TrES-1, with an accuracy of 0.15% and a cadence of 40 s. We improve on estimates of the system parameters, finding inExpand
The Transit Light Curve (TLC) Project. VI. Three Transits of the Exoplanet TrES-2
Of the nearby transiting exoplanets that are amenable to detailed study, TrES-2 is both the most massive and the one with the largest impact parameter. We present z-band photometry of three transitsExpand
Using Stellar Limb-Darkening to Refine the Properties of HD 209458b
We use multiband photometry to refine estimates for the planetary radius and orbital inclination of the transiting planet system HD 209458. We gathered 1066 spectra over four distinct transits withExpand
HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting One Member of a Stellar Binary* **
Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402. This system is a pair of G0 main-sequenceExpand
No planet for HD 166435
The G0 V star HD 166435 has been observed by the ber-fed spectrograph ELODIE as one of the targets in the large extra-solar planet survey that we are conducting at the Observatory of Haute-Provence.Expand