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An observed correlation between plume activity and tidal stresses on Enceladus
It is reported that the plume’s horizontally integrated brightness is several times greater when Enceladus is near the point in its eccentric orbit where it is furthest from Saturn than it is when close to the point of closest approach to the planet.
Titan solar occultation observed by Cassini/VIMS: Gas absorption and constraints on aerosol composition
THE POPULATION OF PROPELLERS IN SATURN'S A RING
We present an extensive data set of ∼150 localized features from Cassini images of Saturn's A ring, a third of which are demonstrated to be persistent by their appearance in multiple images, and half…
Cassini imaging of Saturn's rings. II. A wavelet technique for analysis of density waves and other radial structure in the rings
Origin and Evolution of Saturn's Ring System
The origin and long-term evolution of Saturn's rings is still an unsolved problem in modern planetary science. In this chapter we review the current state of our knowledge on this long-standing…
Moonlets and clumps in Saturn's F ring
Self-Gravity Wake Structures in Saturn’s A Ring Revealed by Cassini VIMS
During the summer of 2005, the Visual and Infrared Mapping Spectrometer onboard the Cassini spacecraft observed a series of occultations of the star o Ceti (Mira) by Saturn's rings. These…
Benchmark parameters for CMB polarization experiments
The recently detected polarization of the cosmic microwave background (CMB) holds the potential for revealing the physics of inflation and gravitationally mapping the large-scale structure of the…
Constraints on clade ages from fossil outgroups
- M. Hedman
- 5 January 2010
If all Mesozoic eutherians are regarded as outgroups of Placentalia, then the last common ancestor of modern placental mammals and their Cenozoic allies lived between 65 and 88–98 million years ago, depending on the assumed cladogram and the number of outgroups included in the analysis.
An Evolving View of Saturn’s Dynamic Rings
The understanding of Saturn’s rings is reviewed after nearly 6 years of observations by the Cassini spacecraft and it remains unclear whether the vigorous evolutionary processes to which the rings are subject imply a much younger age than that of the solar system.