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As part of the NASA EPOXI Mission of Opportunity, we observed seven known transiting extrasolar planet systems in order to construct time series photometry of extremely high phase coverage and precision. Here we present the results for four…

Accurate physical parameters of exoplanet systems are essential for further exploration of planetary internal structure, atmospheres, and formation history. We aim to use simultaneous multicolour transit photometry to improve the estimation…

From its discovery, the low density transiting Neptune HAT-P-26b showed a 2.1-sigma detection drift in its spectroscopic data, while photometric data showed a weak curvature in the timing residuals that required further follow-up…

地球与行星天体物理 · 物理学 2019-08-21 C. von Essen , S. Wedemeyer , M. S. Sosa , M. Hjorth , V. Parkash , J. Freudenthal , M. Mallonn , R. G. Miculan , L. Zibecchi , S. Cellone , A. F. Torres

We report on the spectroscopic transit of the massive hot-Jupiter CoRoT-Exo-2b observed with the high-precision spectrographs SOPHIE and HARPS. By modeling the radial velocity anomaly occurring during the transit due to the…

We analyze a large number of citizen science data and identify eight Hot Jupiter systems that show evidence for deviations from a constant orbital period: HAT-P-19 b, HAT-P-32 b, TrES-1 b, TrES-2 b, TrES-5 b, WASP-4 b, WASP-10 b, and…

地球与行星天体物理 · 物理学 2022-11-04 Simone R. Hagey , Billy Edwards , Aaron C. Boley

We present eight new light curves of the transiting extra-solar planet HAT-P-25b obtained from 2013 to 2016 with three telescopes at two observatories. We use the new light curves, along with recent literature material, to estimate the…

The TASTE project is searching for low-mass planets with the Transit Timing Variation (TTV) technique, by gathering high-precision, short-cadence light curves for a selected sample of transiting exoplanets. It has been claimed that the "hot…

Ultra-hot Jupiters with equilibrium temperature greater than 2000K are uniquely interesting targets as they provide us crucial insights into how atmospheres behave under extreme conditions. This class of giant planets receives intense…

Hot Jupiters are Jupiter-mass planets with orbital periods of less than ten days. Their short orbital separations make tidal dissipation within the stellar host especially efficient, potentially leading to a measurable evolution of the…

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.…

地球与行星天体物理 · 物理学 2022-09-14 Paige Yeung , Quinn Perian , Peyton Robertson , Michael Fitzgerald , Martin Fowler , Frank Sienkiewicz , Kalée Tock

We present 13 high-precision and four additional light curves of four bright southern-hemisphere transiting planetary systems: WASP-22, WASP-41, WASP-42 and WASP-55. In the cases of WASP-42 and WASP-55, these are the first follow-up…

Four transits of the exoplanet HAT-P-23b were recently observed with the 0.36m telescope at the Universidad de Monterrey Observatory. The four light curves were successfully combined to obtain a resulting one with reduced scattering per…

地球与行星天体物理 · 物理学 2012-11-29 Felipe G. Ramón-Fox , Pedro V. Sada

Since the discovery of the first exoplanets more than 20 years ago, there has been an increasing need for photometric and spectroscopic models to characterize these systems. While imaging has been used extensively for Solar System bodies…

地球与行星天体物理 · 物理学 2014-08-05 Bence Béky

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…

地球与行星天体物理 · 物理学 2015-06-19 V. Granata , V. Nascimbeni , G. Piotto , L. R. Bedin , L. Borsato , A. Cunial , M. Damasso , L. Malavolta

New photometric follow-up observations of exoplanet transits of 'hot Jupiters' TrES-3b and Qatar-1b are presented. Weighted mean values of the solutions of light curves in R-fiter for both planetary systems are reported and compared with…

地球与行星天体物理 · 物理学 2017-04-13 Çağlar Püsküllü , Faruk Soydugan , Ahmet Erdem , Edwin Budding

We report the independent discovery of a new extrasolar transiting planet around OGLE-TR-113, a candidate star from the Optical Gravitational Lensing Experiment. Small radial-velocity variations have been detected based on observations…

We present a detailed transit photometric analysis of the ultra-hot Jupiter WASP-12 b using data from the Transiting Exoplanet Survey Satellite (TESS). The study is based on publicly available calibrated light curves and target pixel files…

地球与行星天体物理 · 物理学 2026-01-09 Chinedu Jude Nnaji

High-precision transit photometry supplies ideal opportunities for detecting new exoplanets and characterizing their physical properties, which usually encode valuable information for unveiling the planetary structure, atmosphere and…

地球与行星天体物理 · 物理学 2023-02-01 L. Sun , S. Gu , X. Wang , L. Bai , J. H. M. M. Schmitt , V. Perdelwitz

The ability for citizen scientists to analyze image data and search for exoplanets using images from small telescopes has the potential to greatly accelerate the search for exoplanets. Recent work on the Exoplanet Transit Interpretation…

地球与行星天体物理 · 物理学 2020-06-25 Sujay Nair , Jonathan Varghese , Kalée Tock

In this white paper, we assess the potential for JWST to characterize the atmospheres of super-Earth exoplanets, by simulating a range of transiting spectra with different masses and temperatures. Our results are based on a JWST simulator…

地球与行星天体物理 · 物理学 2015-07-10 Natasha Batalha , Jason Kalirai , Jonathan Lunine , Mark Clampin , Don Lindler