Jeffrey N. Cuzzi
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View article: The Composition of Saturn’s Rings
The Composition of Saturn’s Rings Open
The origin and evolution of Saturn’s rings is critical to understanding the Saturnian system as a whole. Here, we discuss the physical and chemical composition of the rings, as a foundation for evolutionary models described in subsequent c…
View article: Aggregate Cloud Particle Effects in Exoplanet Atmospheres
Aggregate Cloud Particle Effects in Exoplanet Atmospheres Open
Aerosol opacity has emerged as a critical factor controlling transmission and emission spectra. We provide a simple guideline for the effects of aerosol morphology on opacity and residence time in the atmosphere, as it pertains to transit …
View article: How old are Saturn’s rings?
How old are Saturn’s rings? Open
One of the most exciting and controversial aspects of Saturn’s magnificent rings is that they may actually be a recent phenomenon in the solar system – forming long after the Earth, Saturn, and its moon. This possibility has be…
View article: Saturn’s F ring is intermittently shepherded by Prometheus
Saturn’s F ring is intermittently shepherded by Prometheus Open
One of the stranger planetary rings is Saturn’s narrow, clumpy F ring, lying just outside the main rings, in a region disturbed by chaotic orbital dynamics. We show that the F ring has a stable “true core” that dominates its mass and is co…
View article: Length and Velocity Scales in Protoplanetary Disk Turbulence
Length and Velocity Scales in Protoplanetary Disk Turbulence Open
In the theory of protoplanetary disk turbulence, a widely adopted ansatz, or assumption, is that the turnover frequency of the largest turbulent eddy, Ω L , is the local Keplerian frequency Ω K . In terms of the standard dimensionless Shak…
View article: Length and Velocity Scales in Protoplanetary Disk Turbulence
Length and Velocity Scales in Protoplanetary Disk Turbulence Open
In the theory of protoplanetary disk turbulence, a widely adopted \emph{ansatz}, or assumption, is that the turnover frequency of the largest turbulent eddy, $Ω_L$, is the local Keplerian frequency $Ω_K$. In terms of the standard dimension…
View article: The composition of Saturn's rings
The composition of Saturn's rings Open
The origin and evolution of Saturn's rings is critical to understanding the Saturnian system as a whole. Here, we discuss the physical and chemical composition of the rings, as a foundation for evolutionary models described in subsequent c…
View article: A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons
A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons Open
We simulate the collision of precursor icy moons analogous to Dione and Rhea as a possible origin for Saturn’s remarkably young rings. Such an event could have been triggered a few hundred million years ago by resonant instabilities in a p…
View article: Micrometeoroid infall onto Saturn’s rings constrains their age to no more than a few hundred million years
Micrometeoroid infall onto Saturn’s rings constrains their age to no more than a few hundred million years Open
There is ongoing debate as to whether Saturn’s main rings are relatively young or ancient— having been formed shortly after Saturn or during the Late Heavy Bombardment. The rings are mostly water-ice but are polluted by non-icy material wi…
View article: The Age of Saturn’s Rings Constrained by the Meteoroid Flux Into the System
The Age of Saturn’s Rings Constrained by the Meteoroid Flux Into the System Open
<p>The origin of Saturn&#8217;s ring is still not known. There is an ongoing argument whether Saturn&#8217;s ring have been formed shortly after Saturn together with its satellites or they may actually be a recent phenomenon …
View article: Global Modeling of Nebulae with Particle Growth, Drift, and Evaporation Fronts. III. Redistribution of Refractories and Volatiles
Global Modeling of Nebulae with Particle Growth, Drift, and Evaporation Fronts. III. Redistribution of Refractories and Volatiles Open
Formation of the first planetesimals remains an unsolved problem. Growth by sticking must initiate the process, but multiple studies have revealed a series of barriers that can slow or stall growth, most of them due to nebula turbulence. I…
View article: Global Modeling of Nebulae with Particle Growth, Drift, and Evaporation Fronts. II. The Influence of Porosity on Solids Evolution
Global Modeling of Nebulae with Particle Growth, Drift, and Evaporation Fronts. II. The Influence of Porosity on Solids Evolution Open
Incremental particle growth in turbulent protoplanetary nebulae is limited by a combination of barriers that can slow or stall growth. Moreover, particles that grow massive enough to decouple from the gas are subject to inward radial drift…
View article: Global Modeling of Nebulae With Particle Growth, Drift, and Evaporation Fronts. III. Redistribution of Refractories and Volatiles
Global Modeling of Nebulae With Particle Growth, Drift, and Evaporation Fronts. III. Redistribution of Refractories and Volatiles Open
Formation of the first planetesimals remains an unsolved problem. Growth by sticking must initiate the process, but multiple studies have revealed a series of barriers that can slow or stall growth, most of them due to nebula turbulence. I…
View article: Global Modeling of Nebulae With Particle Growth, Drift, and Evaporation Fronts. II. The Influence of Porosity on Solids Evolution
Global Modeling of Nebulae With Particle Growth, Drift, and Evaporation Fronts. II. The Influence of Porosity on Solids Evolution Open
Incremental particle growth in turbulent protoplanetary nebulae is limited by a combination of barriers that can slow or stall growth. Moreover, particles that grow massive enough to decouple from the gas are subject to inward radial drift…
View article: Depletion of Moderately Volatile Elements by Open-system Loss in the Early Solar Nebula
Depletion of Moderately Volatile Elements by Open-system Loss in the Early Solar Nebula Open
Rocky bodies of the inner solar system display a systematic depletion of “moderately volatile elements” (MVEs) that correlates with the expected condensation temperature of their likely host materials under protoplanetary nebula conditions…
View article: Depletion of Moderately Volatile Elements by Open-System loss in the Early Solar Nebula
Depletion of Moderately Volatile Elements by Open-System loss in the Early Solar Nebula Open
Rocky bodies of the inner solar system display a systematic depletion of the "Moderately Volatile Elements" (MVEs) that correlates with the expected condensation temperature of their likely host materials under protoplanetary nebula condit…
View article: The Saturn Ring Skimmer Mission Concept: The next step to explore Saturn’s rings, atmosphere, interior and inner magnetosphere
The Saturn Ring Skimmer Mission Concept: The next step to explore Saturn’s rings, atmosphere, interior and inner magnetosphere Open
The innovative Saturn Ring Skimmer mission concept enables a wide range of investigations that address fundamental questions about Saturn and its rings, as well as giant planets and astrophysical disk systems in general. This mission would…
View article: Frontiers in Planetary Rings Science
Frontiers in Planetary Rings Science Open
We now know that the outer solar system is host to at least six diverse planetary ring systems, each of which is a scientifically compelling target with the potential to inform us about the evolution, history and even the internal structur…
View article: Frontiers in Planetary Rings ScienceA Science White Paper for the Planetary Science and Astrobiology Decadal Survey 2023-2032
Frontiers in Planetary Rings ScienceA Science White Paper for the Planetary Science and Astrobiology Decadal Survey 2023-2032 Open
A Science White Paper for the Planetary Science and Astrobiology Decadal Survey 2023-2032
View article: The Saturn Ring Skimmer Mission Concept: The next step to explore\n Saturn's rings, atmosphere, interior, and inner magnetosphere
The Saturn Ring Skimmer Mission Concept: The next step to explore\n Saturn's rings, atmosphere, interior, and inner magnetosphere Open
The innovative Saturn Ring Skimmer mission concept enables a wide range of\ninvestigations that address fundamental questions about Saturn and its rings,\nas well as giant planets and astrophysical disk systems in general. This\nmission wo…
View article: Cascade Model for Planetesimal Formation by Turbulent Clustering
Cascade Model for Planetesimal Formation by Turbulent Clustering Open
We use a newly developed cascade model of turbulent concentration of particles in protoplanetary nebulae to calculate several properties of interest to the formation of primitive planetesimals and to the meteorite record. The model follows…
View article: Ice Giants – The Return of the RingsA Science White Paper for the Planetary Science and Astrobiology Decadal Survey 2023-2032
Ice Giants – The Return of the RingsA Science White Paper for the Planetary Science and Astrobiology Decadal Survey 2023-2032 Open
Here we highlight recent advances in our knowledge about Saturn's ring system and bring forward the outstanding science issues that could be addressed by studying the ring systems of the ice giants. We focus on interactions between planeta…
View article: Close-range remote sensing of Saturn’s rings during Cassini’s ring-grazing orbits and Grand Finale
Close-range remote sensing of Saturn’s rings during Cassini’s ring-grazing orbits and Grand Finale Open
Cassini's last look at Saturn's rings During the final stages of the Cassini mission, the spacecraft flew between the planet and its rings, providing a new view on this spectacular system (see the Perspective by Ida). Setting the scene, Sp…
View article: Streaming instability: saturation in turbulent protoplanetary disks
Streaming instability: saturation in turbulent protoplanetary disks Open
The streaming instability for solid particles in protoplanetary disks is re-examined assuming the familiar alpha ($\alpha$) model for isotropic turbulence. Turbulence always reduces the growth rates of the streaming instability relative to…
View article: Observing Planetary Systems in the Making
Observing Planetary Systems in the Making Open
International audience
View article: Origin of the non-carbonaceous–carbonaceous meteorite dichotomy
Origin of the non-carbonaceous–carbonaceous meteorite dichotomy Open
The isotopic composition of meteorites reveals a fundamental dichotomy between non-carbonaceous (NC) and carbonaceous (CC) meteorites. However, the origin of this dichotomy—whether it results from processes within the solar protoplanetary …
View article: Multiple generations of grain aggregation in different environments preceded solar system body formation
Multiple generations of grain aggregation in different environments preceded solar system body formation Open
Significance The initial solids from which the solar system formed consisted almost entirely of amorphous silicate, carbon, and ices. This dust was mostly destroyed and reworked by processes that led to the formation of planets. Surviving …
View article: Supporting data CNO prior to corrections
Supporting data CNO prior to corrections Open
Table of data of carbon, nitrogen and oxygen elemental compositions prior to corrections. Supporting data for journal article published in Proceedings of the National Academy of Sciences in June 2018, titled "Multiple generations of grain …
View article: Witnessing Planetary Systems in the Making with the Next Generation Very Large Array
Witnessing Planetary Systems in the Making with the Next Generation Very Large Array Open
The discovery of thousands of exoplanets over the last couple of decades has shown that the birth of planets is a very efficient process in nature. Theories invoke a multitude of mechanisms to describe the assembly of planets in the disks …