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相关论文: Estimation of singly-transiting K2 planet periods …

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Most planetary discoveries with the K2 and TESS missions are restricted to short periods because of the limited duration of observation. However, the re-observation of sky area allows for the detection of longer period planets. We describe…

地球与行星天体物理 · 物理学 2020-02-19 S. Dholakia , S. Dholakia , Andrew W. Mayo , Courtney D. Dressing

We report parallaxes and proper motions from the Hawaii Infrared Parallax Program for eight nearby M dwarf stars with transiting exoplanets discovered by Kepler. We combine our directly measured distances with mass-luminosity and…

Photometric surveys such as Kepler have the precision to identify exoplanet and eclipsing binary candidates from only a single transit. K2, with its 75d campaign duration, is ideally suited to detect significant numbers of single-eclipsing…

Kepler will monitor a sufficient number of stars that it is likely to detect single transits of planets with periods longer than the mission lifetime. We show that by combining the exquisite Kepler photometry of such transits with precise…

天体物理学 · 物理学 2009-11-13 Jennifer C. Yee , B. Scott Gaudi

Over the course of several years, stars trace helical trajectories as they traverse across the sky due to the combined effects of proper motion and parallax. It is well known that the gravitational pull of an unseen companion can cause…

太阳与恒星天体物理 · 物理学 2023-07-05 Jeff J. Andrews , Katelyn Breivik , Chirag Chawla , Carl Rodriguez , Sourav Chatterjee

We present empirical measurements of the radii of 116 stars that host transiting planets. These radii are determined using only direct observables-the bolometric flux at Earth, the effective temperature, and the parallax provided by the…

地球与行星天体物理 · 物理学 2017-03-08 Keivan G. Stassun , Karen A. Collins , B. Scott Gaudi

Kepler will monitor enough stars that it is likely to detect single transits of planets with periods longer than the mission lifetime. We show that by combining the Kepler photometry of such transits with precise radial velocity (RV)…

天体物理学 · 物理学 2009-11-13 Jennifer C. Yee , B. Scott Gaudi

Extrasolar planets found by gravitational microlensing often require assumptions on the source star distance and relative proper motion. Only in a few cases has it been possible to confirm these findings with space-based observations or…

地球与行星天体物理 · 物理学 2018-05-01 K. -S. Nikolaus , M. Hundertmark

We use detailed simulations of the Gaia observations of synthetic planetary systems and develop and utilize independent software codes in double-blind mode to analyze the data, including statistical tools for planet detection and different…

While various indirect methods are used to detect exoplanets, one of the most effective and accurate methods is the transit method, which measures the brightness of a given star for periodic dips when an exoplanet is passing in front of the…

We infer the number of planets-per-star as a function of orbital period and planet size using $Kepler$ archival data products with updated stellar properties from the $Gaia$ Data Release 2. Using hierarchical Bayesian modeling and…

Photometric survey data from the Kepler mission have been used to discover and characterize thousands of transiting exoplanet and eclipsing binary (EB) systems. These discoveries have enabled empirical studies of occurrence rates which…

地球与行星天体物理 · 物理学 2018-02-21 Daryll M. LaCourse , Thomas L. Jacobs

Using the Spitzer Space Telescope, we observed a transit at 3.6um of KELT-11b (Pepper et al. 2017). We also observed three partial transits from the ground. We simultaneously fit these observations, ground-based photometry from Pepper et…

The stellar obliquity of a transiting planetary system can be constrained by combining measurements of the star's rotation period, radius, and projected rotational velocity. Here we present a hierarchical Bayesian technique for recovering…

地球与行星天体物理 · 物理学 2015-06-22 Timothy D. Morton , Joshua N. Winn

We provide the first full K2 transiting exoplanet sample, using photometry from Campaigns 1-8 and 10-18, derived through an entirely automated procedure. This homogeneous planet candidate catalog is a crucial to perform a robust demographic…

Characterizing the dependence of the orbital architectures and formation environments on the eccentricity distribution of planets is vital for understanding planet formation. In this work, we perform statistical eccentricity studies of…

地球与行星天体物理 · 物理学 2019-05-14 Sean M. Mills , Andrew W. Howard , Erik A. Petigura , Benjamin J. Fulton , Howard Isaacson , Lauren M. Weiss

The class of transiting cold Jupiters, orbiting at $\gtrsim0.5-1.0$ au, is to-date underpopulated. Probing their atmospheric composition and physical characteristics is particularly valuable, as it allows for direct comparisons with the…

地球与行星天体物理 · 物理学 2023-02-08 A. Sozzetti , P. Giacobbe , M. G. Lattanzi , M. Pinamonti

It has long been understood that the light curve of a transiting planet constrains the density of its host star. That fact is routinely used to improve measurements of the stellar surface gravity and has been argued to be an independent…

地球与行星天体物理 · 物理学 2023-08-31 Jason D. Eastman , Hannah Diamond-Lowe , Jamie Tayar

The majority of stars both host planetary systems and evolve into a white dwarf (WD). To understand their post-main-sequence (PMS) planetary system evolution, we present a search for transiting/eclipsing planets and other Substellar Bodies…

地球与行星天体物理 · 物理学 2017-12-27 Lennart van Sluijs , Vincent Van Eylen
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