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Related papers: TTV Constraints on Additional Planets in the WD 18…

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We report the discovery by the CoRoT space mission of a transiting brown dwarf orbiting a F7V star with an orbital period of 3.06 days. CoRoT-15b has a radius of 1.12 +0.30 -0.15 Rjup, a mass of 63.3 +- 4.1 Mjup, and is thus the second…

Earth and Planetary Astrophysics · Physics 2015-05-20 F. Bouchy , M. Deleuil , T. Guillot , S. Aigrain , L. Carone , W. D. Cochran

This paper investigates the frequency of transiting planetary systems around metal-polluted white dwarfs using high-cadence photometry from ULTRACAM and ULTRASPEC on the ground, and space-based observations with TESS. Within a sample of 313…

We show that the very close-by (19 pc) K0 star HD 189733, already found to be orbited by a transiting giant planet, is the primary of a double-star system, with the secondary being a mid-M dwarf with projected separation of about 216 AU…

Astrophysics · Physics 2009-11-11 Gaspar A. Bakos , Andras Pal , David W. Latham , Robert W. Noyes , Robert P. Stefanik

We present transit observations of the WASP-2 exoplanet system by the Apache Point Survey of Transit Lightcurves of Exoplanets (APOSTLE) program. Model fitting to these data allows us to improve measurements of the hot-Jupiter exoplanet…

Earth and Planetary Astrophysics · Physics 2015-06-12 Andrew C. Becker , Praveen Kundurthy , Eric Agol , Rory Barnes , Benjamin F. Williams , Amy E. Rose

Exoplanetary systems with multiple giant planets present an opportunity to understand planet formation, migration processes, and long-term system-wide dynamical interactions. In particular, they provide constraints to distinguish between…

We assume a scenario in which transition discs (i.e. discs around young stars that have signatures of cool dust but lack significant near infra-red emission from warm dust) are associated with the presence of planets (or brown dwarfs).…

Solar and Stellar Astrophysics · Physics 2015-06-15 C. J. Clarke , J. E. Owen

Two photometric follow-up transit (primary eclipse) observations on WASP-43 b and four observations on TrES-3 b are performed using the Xuyi Near-Earth Object Survey Telescope. After differential photometry and light curve analysis, the…

Earth and Planetary Astrophysics · Physics 2018-04-25 Zhao Sun , Jianghui Ji , Yao Dong

The planets of the TOI-216 system have been previously observed to exhibit large transit timing variations (TTVs), which enabled precise mass characterization of both transiting planets. In the first year of TESS observations, TOI-216 b…

Earth and Planetary Astrophysics · Physics 2023-05-17 Brendan J. McKee , Benjamin T. Montet

We have performed extensive simulations to explore the possibility of detecting eclipses and transits of close, sub-stellar and planetary companions to white dwarfs in WASP light-curves. Our simulations cover companions $\sim0.3\Re<{\rm…

Earth and Planetary Astrophysics · Physics 2011-03-17 F. Faedi , R. G. West , M. R. Burleigh , M. R. Goad , L. Hebb

There have been previous hints that the transiting planet WASP-3 b is accompanied by a second planet in a nearby orbit, based on small deviations from strict periodicity of the observed transits. Here we present 17 precise radial velocity…

Transit timing analysis may be an effective method of discovering additional bodies in extrasolar systems which harbour transiting exoplanets. The deviations from the Keplerian motion, caused by mutual gravitational interactions between…

We report the results of the transit timing variation (TTV) analysis of the extra-solar planet Qatar-1b using thirty eight light curves. Our analysis combines thirty five previously available transit light curves with three new transits…

Earth and Planetary Astrophysics · Physics 2020-07-09 Parijat Thakur , Vineet Kumar Mannaday , Ing-Guey Jiang , D. K. Sahu , Swadesh Chand

We present the discovery of TOI-5205~b, a transiting Jovian planet orbiting a solar metallicity M4V star, which was discovered using Transiting Exoplanet Survey Satellite photometry and then confirmed using a combination of precise radial…

We report the detection of a transit egress by the ~ 3.9-Jupiter-mass planet HD 80606b, an object in a highly-eccentric orbit (e ~ 0.93) about its parent star of approximately solar type. The astrophysical reality of the signal of…

Earth and Planetary Astrophysics · Physics 2009-11-13 Stephen J. Fossey , Ingo P. Waldman , David M. Kipping

We report the discovery of ZTF J2020+5033, a high-mass brown dwarf (BD) transiting a low-mass star with an orbital period of 1.90 hours. Phase-resolved spectroscopy, optical and infrared light curves, and precise astrometry from Gaia allow…

Solar and Stellar Astrophysics · Physics 2023-09-18 Kareem El-Badry , Kevin B. Burdge , Jan van Roestel , Antonio C. Rodriguez

We report the discovery of Qatar-6b, a new transiting planet identified by the Qatar Exoplanet Survey (QES). The planet orbits a relatively bright (V=11.44), early-K main-sequence star at an orbital period of P~3.506 days. An SED fit to…

From the thousands of known exoplanets, those that transit bright host stars provide the greatest accessibility toward detailed system characterization. The first known such planets were generally discovered using the radial velocity…