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We present a search for single photometric exocomet transits using a magnitude-limited sample of stars observed by the TESS primary mission. These events are asymmetric, with a sharp ingress and more gradual egress expected because the…

地球与行星天体物理 · 物理学 2025-08-07 Azib Norazman , Grant M. Kennedy , Ann Marie Cody , Daniel Giles , Samuel Gill , Ethan Kruse

Phase curves and secondary eclipses of gaseous exoplanets are diagnostic of atmospheric composition and meteorology, and the long observational baseline and high photometric precision from the Kepler Mission make its dataset well-suited for…

地球与行星天体物理 · 物理学 2019-05-29 Brian Jackson , Elisabeth Adams , Wesley Sandidge , Steven Kreyche , Jennifer Briggs

We present first results from the Survey for Transiting Extrasolar Planets in Stellar Systems (STEPSS). Our goal is to assess the frequency of close-in extrasolar planets around main-sequence stars in several open clusters. By concentrating…

天体物理学 · 物理学 2007-05-23 Christopher J. Burke , D. L. DePoy , B. Scott Gaudi , J. L. Marshall , Richard W. Pogge

Identifying long-period eclipsing binaries with space-based photometry is still a challenge even in the century of space telescopes due to the relatively short observation sequences and short lifetime of these missions. The Transiting…

太阳与恒星天体物理 · 物理学 2022-09-21 T. Hajdu , B. Matécsa , J. M. Sallai , A. Bódi

The Transiting Exoplanet Survey Satellite will conduct a 2-year long wide-field survey searching for transiting planets around bright stars. Many TESS discoveries will be amenable to mass characterization via ground-based radial velocity…

地球与行星天体物理 · 物理学 2018-08-15 Ryan Cloutier , René Doyon , François Bouchy , Guillaume Hébrard

We carried out a systematic study of full-orbit phase curves for known transiting systems in the northern ecliptic sky that were observed during Year 2 of the TESS primary mission. We applied the same methodology for target selection, data…

From previous ground-based observations, the hot Jupiter exoplanet XO-6b was reported to exhibit apparently periodic transit timing variations (TTVs), with a semi-amplitude of 14 minutes and a period of about 450 days. These variations were…

地球与行星天体物理 · 物理学 2020-11-18 Andrew R. Ridden-Harper , Jake D. Turner , Ray Jayawardhana

Homogeneous observations and careful analysis of transit light curves can lead to the identification of transit timing variations (TTVs). TrES-2 is one of few exoplanets, which offer the matchless possibility to combine long-term…

Many hot Jupiters may experience orbital decays, which are manifested as long-term transit timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters. These new…

地球与行星天体物理 · 物理学 2023-11-01 Wenqin Wang , Zixin Zhang , Zhangliang Chen , Yonghao Wang , Cong Yu , Bo Ma

The TESS follow-up of a large number of known transiting exoplanets provide unique opportunity to study their physical properties more precisely. Being a space-based telescope, the TESS observations are devoid of any noise component…

地球与行星天体物理 · 物理学 2025-11-25 Suman Saha

Occultations are windows of opportunity to indirectly peek into the dayside atmosphere of exoplanets. High-precision transit events provide information on the spin-orbit alignment of exoplanets around fast-rotating hosts. We aim to…

The Survey for Transiting Extrasolar Planets in Stellar Systems (STEPSS) project is a search for planetary transits in open clusters. In this paper, we analyze the STEPSS observations of the open cluster NGC 1245 to determine the variable…

天体物理学 · 物理学 2011-11-09 Joshua Pepper , Chris Burke

Based on TESS observations of a $\delta$ Scuti variable WASP-33 obtained in 2019 and 2022, we thoroughly investigate the power spectrum of this target photometric flux and construct a statistically exhaustive model for its variability. This…

地球与行星天体物理 · 物理学 2025-01-22 Roman V. Baluev , Eugene N. Sokov

We use data from the Transiting Exoplanet Survey Satellite (TESS) to search for, and set limits on, optical to near-infrared photometric variability of the well-vetted, candidate James Webb Space Telescope (JWST) spectrophotometric…

Lack of high-precision long-term continuous photometric data for large samples of stars has prevented the large-scale exploration of pulsational variability in the OB star regime. As a result, the candidates for in-depth asteroseismic…

太阳与恒星天体物理 · 物理学 2020-07-15 S. Burssens , S. Simón-Díaz , D. M. Bowman , G. Holgado , M. Michielsen , A. de Burgos , N. Castro , R. H. Barbá , C. Aerts

The radius of a planet is a fundamental parameter that probes its composition and habitability. Precise radius measurements are typically derived from the fraction of starlight blocked when a planet transits its host star. The wide-field…

地球与行星天体物理 · 物理学 2025-11-12 Te Han , Paul Robertson , Timothy D. Brandt , Shubham Kanodia , Caleb Cañas , Avi Shporer , George Ricker , Corey Beard

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…

天体物理学 · 物理学 2009-11-13 R. Alonso , S. Aigrain , F. Pont , T. Mazeh , the CoRoT Exoplanet Science Team

The Transiting Exoplanet Survey Satellite (TESS) is surveying a large fraction of the sky, generating a vast database of photometric time series data that requires thorough analysis to identify exoplanetary transit signals. Automated…

地球与行星天体物理 · 物理学 2025-04-15 Helem Salinas , Rafael Brahm , Greg Olmschenk , Richard K. Barry , Karim Pichara , Stela Ishitani Silva , Vladimir Araujo

CoRoT was the first space mission dedicated to exoplanet detection. Operational between 2007 and 2012, this mission discovered 37 transiting planets, including CoRoT-7b, the first terrestrial exoplanet with a measured size. The precision of…

地球与行星天体物理 · 物理学 2021-12-21 Peter Klagyivik , Hans J. Deeg , Szilard Csizmadia , Juan Cabrera , Grzegorz Nowak