Results 21 to 30 of about 14,885 (312)
On the dynamics of comets in extrasolar planetary systems [PDF]
, 2020 Since very recently, we acquired knowledge on the existence of comets in extrasolar planetary systems. The formation of comets together with planets around host stars now seems evident. As stars are often born in clusters of interstellar clouds, the interaction between the systems will lead to the exchange of material at the edge of the clouds ...
Dvorak, Rudolf +2 more
openaire +2 more sources
Design and Research Co-Simulation Platform of Navigation and Dynamics on Planetary Rovers
Xibei Gongye Daxue Xuebao, 2019 The overall design idea of simulation platform of the planetary rover coupling navigation and dynamics is proposed to address the dilemma faced in the design of a navigation control system for Mars and other planetary exploration tasks.
doaj +1 more source
DYNAMICS OF PLANETARY SYSTEMS IN STAR CLUSTERS [PDF]
The Astrophysical Journal, 2009 57 pages, 14 figures, 4 tables, major revision by authors, accepted for publication at the Astrophysical Journal (ApJ)
Spurzem, R. +3 more
openaire +2 more sources
Planetary Dynamics, Satellite Stability and Long-Period Planets
, 2013 I describe my on-going work on planetary dynamics at the Harvard-Smithsonian ...
Payne, Matthew, Payne, Matthew (5290261)
core +1 more source
Orbital forcing of ice sheets during snowball Earth
Nature Communications, 2021 Reconciling the Snowball Earth hypothesis with sedimentological cyclicity has been a persistent challenge. A new cyclostratigraphic climate record for a Cryogenian banded iron formation in Australia provides evidence for orbital forcing of ice sheet ...
Ross N. Mitchell +8 more
doaj +1 more source
Eos, Transactions American Geophysical Union, 1971 Under planetary dynamics we include precise range determinations and improvements in the ephemerides, new ideas and tests of general relativity, tidal evolution of planetary spins and the orbit of the moon, commensurabilities in the solar system, and several selected topics dealing with unusual or long standing problems.
openaire +1 more source
Determination of Jupiter’s Pole Orientation from Juno Radio Science Data
AerospaceThe extreme accuracy of Juno radio science data allows us to perform very precise orbit determination experiments. While previous works focused on the estimation of the gravitational field of Jupiter, in this article, we aim to accurately determine the ...
Giacomo Lari +4 more
doaj +1 more source
Nature Communications, 2023 Argyle is the world’s largest source of natural diamonds, yet one of only a few economic deposits hosted in a Paleoproterozoic orogen. The geodynamic triggers responsible for its alkaline ultramafic volcanic host are unknown. Here we show, using U-Pb and
Hugo K. H. Olierook +14 more
doaj +1 more source
Dynamic modeling and analysis of high-speed flexible planetary gear transmission systems
Alexandria Engineering Journal, 2023 Modern planetary gear transmissions are often made with flexible components and operated at high or varying speed. Despite advances in understanding their dynamic performance, they remain vulnerable to problems leading—in some cases—to subsequent system ...
Changzhao Liu +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source