Results 81 to 90 of about 881,089 (353)
Sandwiched planet formation: restricting the mass of a middle planet [PDF]
arXiv, 2023 We conduct gas and dust hydrodynamical simulations of protoplanetary discs with one and two embedded planets to determine the impact that a second planet located further out in the disc has on the potential for subsequent planet formation in the region locally exterior to the inner planet.
arxiv
The Search for Extrasolar Earth-like planets [PDF]
Earth Planet.Sci.Lett. 208 (2003) 113-124, 2003 The search for extrasolar Earth-like planets is underway. Over 100 extrasolar giant planets are known to orbit nearby sun-like stars, including several in multiple-planet systems. These planetary systems are stepping stones for the search for Earth-like planets; the technology development, observational strategies, and science results can all be ...
arxiv +1 more source
Advanced Engineering Materials, EarlyView.This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach +6 more
wiley +1 more source
Microlensing Detections of Moons of Exoplanets
, 2008 We investigate the characteristic of microlensing signals of Earth-like moons orbiting ice-giant planets. From this, we find that non-negligible satellite signals occur when the planet-moon separation is similar to or greater than the Einstein radius of ...
Bozza V. +5 more
core +1 more source
Scattering outcomes of close-in planets: constraints on planet migration [PDF]
, 2014 Many exoplanets in close-in orbits are observed to have relatively high eccentricities and large stellar obliquities. We explore the possibility that these result from planet-planet scattering by studying the dynamical outcomes from a large number of ...
Petrovich, Cristobal +2 more
core +1 more source
Formation of Hot Planets by a combination of planet scattering, tidal circularization, and Kozai mechanism [PDF]
, 2008 We have investigated the formation of close-in extrasolar giant planets through a coupling effect of mutual scattering, Kozai mechanism, and tidal circularization, by orbital integrations. We have carried out orbital integrations of three planets with Jupiter-mass, directly including the effect of tidal circularization.
arxiv +1 more source
Predictions for the correlation between giant and terrestrial extrasolar planets in dynamically evolved systems [PDF]
Astrophys.J. 645 (2006) 1509-1515, 2006 The large eccentricities of many giant extrasolar planets may represent the endpoint of gravitational scattering in initially more crowded systems. If so, the early evolution of the giant planets is likely to be more restrictive of terrestrial planet formation than would be inferred from the current, dynamically quiescent, configurations.
arxiv +1 more source
Planet Formation and Disk-Planet Interactions [PDF]
, 2019 This review is based on lectures given at the 45th Saas-Fee Advanced Course 'From Protoplanetary Disks to Planet Formation' held in March 2015 in Les Diablerets, Switzerland. Starting with an overview of the main characterictics of the Solar System and extrasolar planets, we describe the planet formation process in terms of the sequential accretion ...
openaire +3 more sources
Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao +4 more
wiley +1 more source
Аутизм и нарушение развития, 2021 This article describes the positive effect of teaching the PECS (Picture exchange communication system) alternative communication system on vocal speech acquisition in children with autism spectrum disorders (ASD).
O.A. Popova, N.M. Filina
doaj +1 more source