نتایج جستجو برای: kepler
تعداد نتایج: 3116 فیلتر نتایج به سال:
Since the launch of Kepler space telescope in 2009 and subsequent K2 mission, hundreds multi-planet systems have been discovered. The study such systems, both as individual a population, leads to better understanding planetary formation evolution. Kepler-80, K-dwarf hosting six super-Earths, was first system known four planets chain resonances, repeated geometric configuration. Transiting reson...
Abstract Pre-trained language representation models (PLMs) cannot well capture factual knowledge from text. In contrast, embedding (KE) methods can effectively represent the relational facts in graphs (KGs) with informative entity embeddings, but conventional KE take full advantage of abundant textual information. this paper, we propose a unified model for Knowledge Embedding and LanguagERepres...
Currently, over forty transiting planets have been discovered by ground-based photometric surveys, and space-based missions like Kepler and CoRoT are expected to detect hundreds more. Follow-up photometric observations from the ground will play an important role in constraining both orbital and physical parameters for newly discovered planets, especially those with small radii (Rp . 4 R⊕) and/o...
This paper reports the discovery and characterization of the transiting hot giant exoplanet Kepler17b. The planet has an orbital period of 1.486 days, and radial velocity measurements from the HobbyEberly Telescope show a Doppler signal of 419.5 −15.6 ms . From a transit-based estimate of the host star’s mean density, combined with an estimate of the stellar effective temperature Teff=5630± 100...
We report the discovery of planet Kepler-12b (KOI-20), which at 1.695± 0.030 RJ is among the handful of planets with super-inflated radii above 1.65 RJ. Orbiting its slightly evolved G0 host with a 4.438-day period, this 0.431± 0.041 MJ planet is the least-irradiated within this largest-planet-radius group, which has important implications for planetary physics. The planet’s inflated radius and...
The Kepler Mission revolutionized exoplanet science and stellar astrophysics by obtaining highly precise photometry of over 200,000 stars 4 years. A critical piece information to exploit data is its selection function, since all targets had be selected from a sample half million on the CCDs using limited information. Here we use Gaia DR2 reconstruct function explore possible biases with respect...
How do the characteristics of starspots influence triggering stellar flares? Here we investigate activity two K-type stars, similar in every way from mass to rotation periods and planetary systems. Both stars exhibit about a hundred spots, however, Kepler-411 produced 65 superflares, while Kepler-210 presented none. The spots both were characterized using transit mapping technique, which yields...
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