نتایج جستجو برای: kepler
تعداد نتایج: 3116 فیلتر نتایج به سال:
In this paper, we explore the astrophysical implications of near-field microlensing and its effects on stellar transit observations, with a special emphasis on the Kepler mission. Kepler is a NASA-approved mission whose goal is to detect a large number of extrasolar, earth-like planets by obtaining near-continuous photometry of > 100, 000 F, G, and K dwarfs for four years. The expected photomet...
We have searched the Kepler light curves of ∼3900 M-star targets for evidence of periodicities that indicate, by means of the effects of starspots, rapid stellar rotation. Several analysis techniques, including Fourier transforms, inspection of folded light curves, “sonograms,” and phase tracking of individual modulation cycles, were applied in order to distinguish the periodicities due to rapi...
A new predictive computer simulation tool targeting the development of the H-mode pedestal at the plasma edge in tokamaks and the triggering and dynamics of edge localizedmodes (ELMs) is presented in this report. This tool brings together, in a coordinated and effective manner, several first-principles physics simulation codes, stability analysis packages, and data processing and visualization ...
NASA's Kepler mission will fly a photometer based on a wide-field Schmidt camera with a 0.95 m aperture, staring at a single field continuously for at least 4 years. Although the mission's principal aim is to locate transiting extrasolar planets, it will provide an unprecedented opportunity to make asteroseismic observations on a wide variety of stars. Plans are now being developed to exploit t...
Abstract The tidal interactions between a planet and moon can provide insight into the properties of host planet. recent exomoon candidates Kepler-1708 b-i Kepler-1625 are Neptune-sized satellites orbiting Jupiter-like planets an opportunity to apply such methods. We show that if migration time is roughly equal age these systems, then dissipation factor Q for b have values ∼3 × 10 5 –3 6 ∼1.5 –...
1 УДК 530.1, 001.6 Olesya Mryglod, Yurij Holovatch 1 Institute of Computer Sciences and Information Technologies, Lviv Polytechnic National University, 12 S. Bandery Str., Lviv, 79013, UKRAINE 2 Institute for Condensed Matter Physics of the NAS of Ukraine, 1 Svientsitskii Str., 79011 Lviv, UKRAINE 3 Institut für Theoretische Physik, Johannes Kepler Universität Linz, 69 Altenbergerstr., 4040 Lin...
1 Applied Mathematics Research Centre, Coventry University, Coventry CV1 5FB, UK [email protected] 2 Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany 3 Ivan Franko National University of Lviv, 79005 Lviv, Ukraine 4 Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 79011 Lviv, Ukraine 5 Institut für Theoretische Physik, Johannes...
We consider the asymptotic behavior of nite sphere packings in the face centered cubic lattice (fcc), the hexagonal closest packing (hcp) and related periodic structures. We use concepts as the parametric density and the density deviation and compare packings in diierent periodic structures. We prove that for any structure M there is a range for the parameter % such that the regular octahedron ...
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