Results 51 to 60 of about 50,929 (190)

Collisional dynamics of perturbed particle disks in the solar system [PDF]

open access: yes
Investigations of the collisional evolution of particulate disks subject to the gravitational perturbation of a more massive particle orbiting within the disk are underway.
Roberts, W. W., Stewart, G. R.
core   +1 more source

Investigations of planetary ring phenomena [PDF]

open access: yes
Faint planetary rings, their dynamical behavior and physical properties, were the main focus of the research efforts. The motion of weakly-charged dust through the gravitational and magnetic fields of Jupiter were examined.
Burns, Joseph A.
core   +1 more source

Analytical studies of particle dynamics in bending waves in planetary rings

open access: yes, 2005
Particles inside a planetary ring are subject to forcing due to the central planet, moons in inclined orbits, self-gravity of the ring and other forces due to radiation drag, collisional effects and Lorentz force due to magnetic field of the planet.
Abhijit Bhattacharyya   +19 more
core   +1 more source

Planetary astronomy: Rings, satellites, and asteroids [PDF]

open access: yes
Studies of planetary rings focus on the dynamical processes that govern astronomically observable ring properties and structure. These investigations thus help reveal properties of the rings as well as probe the gravity fields of the planets.
Greenberg, Richard
core   +1 more source

Vertical structures induced by embedded moonlets in Saturn's rings: the gap region [PDF]

open access: yes, 2012
We study the vertical extent of propeller structures in Saturn's rings. Our focus lies on the gap region of the propeller and on non-inclined propeller moonlets.
Hoffmann, Holger   +2 more
core  

Debris Disks: Probing Planet Formation

open access: yes, 2018
Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on circumstellar disk ...
A Bonsor   +131 more
core   +1 more source

Fourier spectroscopy on planetary missions including Voyager [PDF]

open access: yes
In the last dozen years spaceborne Fourier transform spectrometers have obtained infrared emission spectra of Earth, Mars, Jupiter, Saturn and Titan as well as of the Galilean and other Saturnian satellites and Saturn's rings.
Hanel, R. A.
core   +1 more source

Rotary plant growth accelerating apparatus [PDF]

open access: yes, 1975
Rotary plant growth accelerating apparatus for increasing plant yields by effectively removing the growing plants from the constraints of gravity and increasing the plant yield per unit of space is described.
Dedolph, R. D.
core   +1 more source

Dynamical Environment and Stability around Centaur (2060) Chiron

open access: yesThe Astrophysical Journal
A recent stellar occultation revealed that the Centaur (2060) Chiron hosts a broad disk extending beyond ∼200 km from its center, embedding three ring-like structures (Chi1R, Chi2R, and Chi3R), while a tenuous outer ring (Chi4R) lies beyond the Roche ...
G. Madeira   +5 more
doaj   +1 more source

A possible architecture of the planetary system HR 8799

open access: yes, 2009
HR8799 is a nearby A-type star with a debris disk and three planetary candidates recently imaged directly. We undertake a coherent analysis of various portions of observational data on all known components of the system.
A. V. Krivov   +67 more
core   +2 more sources

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