Results 1 to 10 of about 12,854 (161)

Post-main-sequence planetary system evolution [PDF]

open access: yesRoyal Society Open Science, 2016
The fates of planetary systems provide unassailable insights into their formation and represent rich cross-disciplinary dynamical laboratories. Mounting observations of post-main-sequence planetary systems necessitate a complementary level of theoretical
Dimitri Veras
doaj   +8 more sources

Evolution of planetary systems in resonance [PDF]

open access: yesAstronomy & Astrophysics, 2004
We study the time evolution of two protoplanets still embedded in a protoplanetary disk. The results of two different numerical approaches are presented and compared. In the first approach, the motion of the disk material is computed with viscous hydrodynamical simulations, and the planetary motion is determined by N-body calculations including exactly
Kley, Wilhelm   +2 more
openaire   +2 more sources

Planets Across Space and Time (PAST). IV. The Occurrence and Architecture of Kepler Planetary Systems as a Function of Kinematic Age Revealed by the LAMOST–Gaia–Kepler Sample

open access: yesThe Astronomical Journal, 2023
One of the fundamental questions in astronomy is how planetary systems form and evolve. Measuring the planetary occurrence and architecture as a function of time directly addresses this question.
Jia-Yi Yang   +9 more
doaj   +1 more source

Exciting opportunities in planetary structural geology and tectonics: An early career perspective

open access: yesFrontiers in Earth Science, 2022
The outer shells of solid planetary bodies have been all subject to deformation during their history. The nature and style of deformation strictly depends on the evolution of each planetary body.
Kelsey Crane, Valentina Galluzzi
doaj   +1 more source

Secular Evolution of Hierarchical Planetary Systems [PDF]

open access: yesThe Astrophysical Journal, 2003
32 pages, including 8 figures; uses AASTeX v5.0; accepted for publication in ...
Lee, MH, Peale, SJ
openaire   +4 more sources

Development and prospect of planetary optical remote sensing at Lenghu

open access: yes地球与行星物理论评, 2021
Planetary science is the one among the frontiers of science in the world and also is one of the key components of the development strategy of science and technology in China, which reflects the state of national natural science and the comprehensive ...
Fei He, Zhonghua Yao, Yong Wei
doaj   +1 more source

On the evolution of the resonant planetary system HD 128311 [PDF]

open access: yesAstronomy & Astrophysics, 2006
A significant number of the known multiple exoplanetary systems are containing a pair of giant planets engaged in a low order mean motion resonance. Such a resonant condition protects the dynamics of these planets resulting in very stable orbits. According to recent studies the capture into a resonance is the result of a planetary migration process ...
Sándor, Zs, Kley, W
openaire   +3 more sources

Institutionalization of planetary management boundaries [PDF]

open access: yesE3S Web of Conferences, 2020
Within the framework of the problem of institutionalization of planetary management boundaries, planetary property and planetary rent are considered as the idea of radical institutional -economic innovation designed to form the economy of optimal ...
Ryazanova Olesya   +3 more
doaj   +1 more source

Orbital Evolution of Planetary Systems [PDF]

open access: yesSymposium - International Astronomical Union, 2004
It is significant that the orbits of the planets in the solar system are very nearly circular, except for Mercury and Pluto where, conceivably, due to their comparatively small sizes, the tidal forces have played a less active role. Most of the suspected planets orbiting pulsars have nearly circular orbits. These systems tend to have minimum energy and
Tapan K. Chatterjee, V. B. Magalinsky
openaire   +1 more source

The future of lidar in planetary science

open access: yesFrontiers in Remote Sensing, 2022
Lidar has enabled advances in the knowledge of the Solar System through geophysical and atmospheric studies of the Moon, Mercury, Mars, and several asteroids.
Daniel R. Cremons
doaj   +1 more source

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