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Related papers: TraMoS IV: Discarding the Quick Orbital Decay Hypo…

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HATS-18b is a transiting planet with a large mass and a short orbital period, and is one of the best candidates for the detection of orbital decay induced by tidal effects. We present extensive photometry of HATS-18 from which we measure 27…

We present results of the photometric campaign for planetary and low-luminosity object transits conducted by the OGLE survey in 2005 season (Campaign #5). About twenty most promising candidates discovered in these data were subsequently…

We present twelve new transit light curves of the hot-Jupiter TrES-3b observed during $2012-2018$ to probe the transit timing variation (TTV). By combining the mid-transit times determined from these twelve transit data with those…

OGLE-TR-132b transits a very metal-rich F dwarf about 2000 pc from the Sun, in the Galactic disc towards Carina. It orbits very close to its host star (a = 0.03 AU) and has an equilibrium temperature of nearly 2000 K. Using rapid-cadence…

Astrophysics · Physics 2009-11-13 M. Gillon , F. Pont , C. Moutou , N. C. Santos , F. Bouchy , J. D. Hartman , M. Mayor , C. Melo , D. Queloz , S. Udry , P. Magain

A high accuracy photometry algorithm is needed to take full advantage of the potential of the transit method for the characterization of exoplanets, especially in deep crowded fields. It has to reduce to the lowest possible level the…

Astrophysics · Physics 2009-11-11 M. Gillon , F. Pont , C. Moutou , F. Bouchy , F. Courbin , S. Sohy , P. Magain

We report the discovery of a transiting hot Jupiter around OGLE-TR-111, from our radial velocity follow-up of OGLE transiting candidates in Carina. The planet has a mass of 0.53 +- 0.11 M_J and a radius of 1.0 +0.13-0.06 R_J. Three…

By re-processing the data of the second season of the OGLE survey for planetary transits and adding new mesurements on the same fields gathered in subsequent years with the OGLE telescope, we have identified 23 new transit candidates,…

We re-examine the photometric and spectroscopic evidence available for the star OGLE-TR-56, recently discovered to harbor a giant planet presenting transits and orbiting with a period of 1.21 days. We investigate the possibility that the…

Astrophysics · Physics 2009-11-10 Guillermo Torres , Maciej Konacki , Dimitar D. Sasselov , Saurabh Jha , ;

The detection of transits is an efficient technique to uncover faint companions around stars. The full characterisation of the companions (M-type stars, brown dwarfs or exoplanets) requires high-resolution spectroscopy to measure properly…

Astrophysics · Physics 2008-12-18 J. Gallardo , D. Minniti , D. Valls-Gabaud , M. Rejkuba

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

We present 12 new transit observations of the exoplanet WASP-46b obtained with the 1.54-m telescope at Estaci\'on Astrof\'isica de Bosque Alegre (EABA, Argentina) and the 0.40-m Horacio Ghielmetti and 2.15-m Jorge Sahade telescopes at…

Earth and Planetary Astrophysics · Physics 2017-12-13 R. Petrucci , E. Jofré , L. V. Ferrero , V. Cúneo , L. Saker , F. Lovos , M. Gómez , P. Mauas

Motivated by the identification of the very close-in extrasolar giant planet OGLE-TR-56b, we explore the implications of its existence on problems of tidal dissipation, planet migration, and atmospheric stability. The small orbit of…

Astrophysics · Physics 2009-11-07 Dimitar D. Sasselov

We present nine newly observed transits of TrES-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. A Markov-Chain Monte-Carlo analysis was used to determine the planet-star radius ratio and…

Earth and Planetary Astrophysics · Physics 2009-07-22 N. P. Gibson , D. Pollacco , I. Skillen , E. K. Simpson , S. Barros , Y. C. Joshi , I. Todd , C. Benn , D. Christian , M. Hrudková , F. P. Keenan , I. A. Steele

Context: Photometric observations for the OGLE-II microlens monitoring campaign have been taken in the period 1997-2000. All light curves of this campaign have recently been made public. Our analysis of these data has revealed 13…

We present new observations of the transiting system TrES-3 obtained from 2009 to 2011 at several observatories. The orbital parameters of the system were re- determined and a new linear ephemeris was calculated. The best quality light…

Solar and Stellar Astrophysics · Physics 2015-06-15 M. Vanko , G. Maciejewski , M. Jakubik , T. Krejcova , J. Budaj , T. Pribulla , J. Ohlert , St. Raetz , S. Parimucha , L. Bukowiecki

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…

Nowadays, transit timing variations (TTVs) are proving to be a very valuable tool in exoplanetary science to detect exoplanets by observing variations in transit times. To study the transit timing variation of the hot Jupiter, TrES-2b, we…

Earth and Planetary Astrophysics · Physics 2024-09-19 Shraddha Biswas , D. Bisht , Ing-Guey Jiang , Devesh P. Sariya , Kaviya Parthasarathy

We used GTC instrument OSIRIS to obtain long-slit spectra in the optical range (520-1040 nm) of the planetary host star WASP-43 (and a reference star) during a full primary transit event and four partial transit observations. We integrated…

Earth and Planetary Astrophysics · Physics 2014-03-05 F. Murgas , E. Palle , M. R. Zapatero Osorio , L. Nortmann , S. Hoyer , A. Cabrera-Lavers

Based on the light an exoplanet blocks from its host star as it passes in front of it during a transit, the mid-transit time can be determined. Periodic variations in mid-transit times can indicate another planet's gravitational influence.…

Earth and Planetary Astrophysics · Physics 2022-09-14 Paige Yeung , Quinn Perian , Peyton Robertson , Michael Fitzgerald , Martin Fowler , Frank Sienkiewicz , Kalée Tock

In this study, the transit observations of HAT-P-16b and TrES-3b exoplanets were carried out at \c{C}\"U UZAYMER Observatory with a 50 cm Ritchey Chretien type telescope. By analyzing the light curves of both exoplanets, system parameters…

Earth and Planetary Astrophysics · Physics 2021-09-15 Y. Aladağ , A. Akyüz , Ö. Bastürk , N. Aksaker , E. M. Esmer , S. Yalçınkaya