Results 61 to 70 of about 24,968,366 (387)
The radial dependence of pebble accretion rates: A source of diversity in planetary systems I. Analytical formulation [PDF]
, 2016 Context. The classical "planetesimal" accretion scenario for the formation of planets has recently evolved with the idea that "pebbles", centimeter- to meter-sized icy grains migrating in protoplanetary disks, can control planetesimal and/or planetary ...
S. Ida, T. Guillot, A. Morbidelli
semanticscholar +1 more source
Early planet formation as a trigger for further planet formation [PDF]
, 1999 Recent discoveries of extrasolar planets at small orbital radii, or with significant eccentricities, indicate that interactions between massive planets and the disks of gas and dust from which they formed are vital for determining the final shape of ...
Armitage, Philip J., Hansen, Brad M. S.
core +3 more sources
Progress in Earth and Planetary ScienceTo assess the permeability structure of the oceanic lithosphere, we analyzed the field-based vein distribution and geometry in the Wadi Haymiliyah area of the Oman ophiolite.
Genya Sakamoto +4 more
doaj +1 more source
Analytic orbit propagation for transiting circumbinary planets
, 2015 The herein presented analytical framework fully describes the motion of coplanar systems consisting of a stellar binary and a planet orbiting both stars on orbital as well as secular timescales.
Eggl, Siegfried, Georgakarakos, Nikolaos
core +2 more sources
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
MAHLI on Mars: lessons learned operating a geoscience camera on a landed payload robotic arm [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2016 The Mars Hand Lens Imager (MAHLI) is a 2-megapixel, color camera with resolution as high as 13.9 µm pixel−1. MAHLI has operated successfully on the Martian surface for over 1150 Martian days (sols) aboard the Mars Science Laboratory (MSL) rover ...
R. A. Yingst +7 more
doaj +1 more source
Universe, 2022 Only a low percentage of the radiation from our Sun is captured by photosynthesis, but this conversion of solar to chemical energy sustains all life on Earth.
Pablo Marcos-Arenal +7 more
doaj +1 more source
A MACHINE LEARNS TO PREDICT THE STABILITY OF TIGHTLY PACKED PLANETARY SYSTEMS [PDF]
, 2016 The requirement that planetary systems be dynamically stable is often used to vet new discoveries or set limits on unconstrained masses or orbital elements. This is typically carried out via computationally expensive N-body simulations.
D. Tamayo +11 more
semanticscholar +1 more source
Are Planetary Systems Filled to Capacity? A Study Based on Kepler Results
, 2013 We used a sample of Kepler candidate planets with orbital periods less than 200 days and radii between 1.5 and 30 Earth radii to determine the typical dynamical spacing of neighboring planets.
Fang, Julia, Margot, Jean-Luc
core +1 more source
Pursuing the planet-debris disk connection: Analysis of upper limits from the Anglo-Australian Planet Search [PDF]
, 2015 Solid material in protoplanetary discs will suffer one of two fates after the epoch of planet formation; either being bound up into planetary bodies, or remaining in smaller planetesimals to be ground into dust.
Marshall, Jonathan P. +1 more
core +2 more sources