Results 61 to 70 of about 50,929 (190)
Eos, Transactions American Geophysical Union, 2008 Life used to be simple for ring scientists. Since the time of Galileo, anyone with even the most basic telescope could see that Saturn was the only planet with rings. Saturn's ring system is clearly bright, broad, and bland. James Clerk Maxwell proved that the rings could not be solid, and basic spectroscopy showed that they are composed primarily of ...
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Planetary Rings and Other Astrophysical Disks [PDF]
, 2018 This chapter explores the physics shared by planetary rings and the various disks that populate the Universe. It begins with an observational overview, ranging from protoplanetary disks to spiral galaxies, and then compares and contrasts these astrophysical disks with the rings of the Solar System. Emphasis is placed on fundamental physics and dynamics,
Latter, Henrik N. +2 more
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Hamiltonian theory of nonlinear waves in planetary rings [PDF]
The derivation of a Hamiltonian field theory for nonlinear density waves in Saturn's rings is discussed. Starting with a Hamiltonian for a discrete system of gravitating streamlines, an averaged Hamiltonian is obtained by successive applications of Lie ...
Stewart, G. R.
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Nature CommunicationsMetal carbides are known to contain small carbon units similar to those found in the molecules of methane, acetylene, and allene. However, for numerous binary systems ab initio calculations predict the formation of unusual metal carbides with exotic ...
Saiana Khandarkhaeva +17 more
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Structure in narrow planetary rings: Open questions and recent results
Revista Mexicana de Ciencias Geológicas, 2014 En este artículo hacemos una revisión de algunas de las preguntas que permanecen abiertas en el contexto de la estructura observada en los anillos planetarios delgados, y resumimos algunos resultados recientes de nuestro trabajo encaminados a ...
Luis Benet, Olivier Merlo
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Models of planetary rings [PDF]
The Voyager occultations provide several uniform and high quality data sets for Saturn, Uranus, and Neptune. These data are intercompared, and theoretical models for the particle sizes and the particle transport are developed.
Brophy, T. G. +3 more
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On the Detection of Exorings in Reflected Light with JWST NIRCam
The Astronomical JournalWhen directly imaging a cold-giant exoplanet hosting a ring system, the reflected light from the rings can outshine the planet’s thermal emission and reflected light in the near-infrared.
Rachel Bowens-Rubin +6 more
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Fourier spectroscopy and planetary research [PDF]
The application of Fourier Transform Spectroscopy (FTS) to planetary research is reviewed. The survey includes FTS observations of the sun, all the planets except Uranus and Pluto, the Galilean satellites and Saturn's rings.
Hanel, R. A., Kunde, V. G.
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Saturn and its Rings: Four Centuries of Imperfect Amodal Completion
i-Perception, 2019 The planet Saturn is a familiar image for us, but it presents perceptual peculiarities that impeded the discovery of its structure and which can still be misleading today.
Sergio Roncato
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Formation of Super-Earths and Mini-Neptunes from Rings of Planetesimals
The Astrophysical Journal LettersThe solar system's planetary architecture has been proposed to be consistent with the terrestrial and giant planets forming from material rings at ∼1 au and ∼5 au, respectively.
Sho Shibata, Andre Izidoro
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