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Related papers: Transit timing variation and activity in the WASP-…

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In this work we investigate the problem concerning the presence of additional bodies gravitationally bounded with the WASP-3 system. We present eight new transits of this planet and analyse all the photometric and radial velocity data…

Earth and Planetary Astrophysics · Physics 2015-06-12 M. Montalto , J. Gregorio , G. Boue' , A. Mortier , I. Boisse , M. Oshagh , M. Maturi , P. Figueira , S. Sousa , N. C. Santos

We present photometry of two transits of the giant planet WASP-4b with a photometric precision of 400-800 parts per million and a time sampling of 25-40 seconds. The two midtransit times are determined to within 6 seconds. Together with…

Earth and Planetary Astrophysics · Physics 2009-11-13 Joshua N. Winn , Matthew J. Holman , Joshua A. Carter , Guillermo Torres , David J. Osip , Thomas Beatty

We present new ground-based, multi-colour, broad-band photometric measurements of the physical parameters, transmission and emission spectra of the transiting extrasolar planet WASP-19b. The measurements are based on observations of 8…

We perform a detailed study of six transiting planetary systems with relatively bright stars close enough to affect observations of these systems. Light curves are analysed taking into account the contaminating light and its uncertainty. We…

Earth and Planetary Astrophysics · Physics 2020-03-11 J. Southworth , A. J. Bohn , M. A. Kenworthy , C. Ginski , L. Mancini

With more than 80 transits observed in the CoRoT light curve with a cadence of 32 s, CoRoT-Exo-2b provides an excellent case to search for the secondary eclipse of the planet, with an expected signal of less than 10^-4 in relative flux. The…

Astrophysics · Physics 2009-11-13 R. Alonso , S. Aigrain , F. Pont , T. Mazeh , the CoRoT Exoplanet Science Team

We present our analysis of the K2 short-cadence data of two previously known hot Jupiter exoplanets: WASP-55b and WASP-75b. The high precision of the K2 lightcurves enabled us to search for transit timing and duration variations, rotational…

Earth and Planetary Astrophysics · Physics 2018-02-07 B. J. M. Clark , D. R. Anderson , C. Hellier , O. D. Turner , T. Močnik

We update the ephemerides of 16 transiting exoplanets using our ground-based observations, new TESS data, and previously published observations including those of amateur astronomers. All these light curves were modeled by making use of a…

Motivated by the previously reported high orbital decay rate of the planet WASP-43b, eight newly transit light curves are obtained and presented. Together with other data in literature, we perform a self-consistent timing analysis with data…

Earth and Planetary Astrophysics · Physics 2016-01-13 Ing-Guey Jiang , Chien-Yo Lai , Alexander Savushkin , David Mkrtichian , Kirill Antonyuk , Evgeny Griv , He-Feng Hsieh , Li-Chin Yeh

Transit timing variations of Kepler-410Ab were already reported in a few papers. Their semi-amplitude is about 14.5 minutes. In our previous paper, we found that the transit timing variations could be caused by the presence of a stellar…

We present new photometric data of 11 hot Jupiter transiting exoplanets (CoRoT-12b, HAT-P-5b, HAT-P-12b, HAT-P-33b, HAT-P-37b, WASP-2b, WASP-24b, WASP-60b, WASP-80b, WASP-103b, XO-3b) in order to update their planetary parameters and to…

We present thirteen new transit light curves for the WASP-1 b exoplanet. Observations were acquired with 0.5 - 1.2-m telescopes between 2007 and 2013. Our homogeneous analysis, which also includes the literature data, results in determining…

Earth and Planetary Astrophysics · Physics 2014-02-27 G. Maciejewski , J. Ohlert , D. Dimitrov , D. Puchalski , J. Nedoroščík , M. Vaňko , C. Marka , S. Baar , St. Raetz , M. Seeliger , R. Neuhäuser

In this work, we present transit timing variations detected for the exoplanet TrES-5b. To obtain the necessary amount of photometric data for this exoplanet, we have organized an international campaign to search for exoplanets based on the…

As part of our ongoing effort to investigate transit timing variations (TTVs) of known exoplanets, we monitored transits of the four exoplanets HAT-P-18b, HAT-P-19b, HAT-P-27b/WASP-40b and WASP-21b. All of them are suspected to show TTVs…

Future surveys for transiting extrasolar planets, including the space-based mission Kepler (Borucki et al 2003), are expected to detect hundreds of Jovian mass planets and tens of terrestrial mass planets. For many of these newly discovered…

Astrophysics · Physics 2011-09-01 Matthew J. Holman , Norman W. Murray

We present four new light curves of transiting exoplanets WASP-1b and HAT-P-20b, observed within the TASTE (The Asiago Search for Transit timing variations of Exoplanets) project. We re-analyzed light curves from the literature in a…

Earth and Planetary Astrophysics · Physics 2015-06-19 V. Granata , V. Nascimbeni , G. Piotto , L. R. Bedin , L. Borsato , A. Cunial , M. Damasso , L. Malavolta

Context. By now more than 300 planets transiting their host star have been found, and much effort is being put into measuring the properties of each system. Light curves of planetary transits often contain deviations from a simple transit…

Earth and Planetary Astrophysics · Physics 2015-06-16 S. Ciceri , L. Mancini , J. Southworth , N. Nikolov , V. Bozza , I. Bruni , S. Calchi Novati , G. D'Ago , Th. Henning

With more than 6000 exoplanets discovered so far, about 12 percent are hot Jupiters. Their large sizes and short orbital periods make them valuable targets for studying planetary formation, atmospheres, and orbital evolution. We present a…

We present a new set of 35 transit light curves of the hot Jupiter WASP-43~b, obtained through the SPEARNET network. These datasets were analyzed together with previously published ground-based observations, as well as space-based data from…

We report nine new transit epochs of the extrasolar planet, observed in the Bessell-I band with SOAR at the Cerro Pachon Observatory and with the SMARTS 1-m Telescope at CTIO, between August 2008 and October 2009. The new transits have been…

Earth and Planetary Astrophysics · Physics 2015-06-03 S. Hoyer , P. Rojo , M. Lopez-Morales

We obtained J-, H- and JH-band photometry of known extrasolar planet transiting systems at the 2.1-m Kitt Peak National Observatory Telescope using the FLAMINGOS infrared camera between October 2008 and October 2011. From the derived…