The theory of spiral density waves had its origin approximately six decades ago in an
attempt to reconcile the winding dilemma of material spiral arms in flattened disk galaxies …

INTRODUCTION The interior structure of Saturn, the depth of its winds, and the mass and
age of its rings have been open questions in planetary science. The mass distribution inside …

We review our understanding of Saturn's rings after nearly 6 years of observations by the
Cassini spacecraft. Saturn's rings are composed mostly of water ice but also contain an …

This second edition of The Illustrated Wavelet Transform Handbook: Introductory Theory and
Applications in Science, Engineering, Medicine and Finance has been fully updated and …

Many white dwarf stars show signs of having accreted smaller bodies, implying that they
may host planetary systems. A small number of these systems contain gaseous debris discs …

Four spacecraft have been sent to investigate the Saturnian system: Pioneer 11, Voyager 1,
Voyager 2, and Cassini. By analyzing data acquired with these spacecraft together with …

Using a meteor orbit radar, a total of more than 2.5 million meteoroids with masses∼ 10− 7
kg have had orbits measured in the interval 2002–2006. From these data, a total of 45 …

Saturn's C ring contains multiple spiral patterns that appear to be density waves driven by
periodic gravitational perturbations. In other parts of Saturn's rings, such waves are …

Our understanding of the structure of Saturn's rings has evolved steadily since their
discovery by Galileo Galilei in 1610. With each advance in observations of the rings over the …

We review recent progress concerning the composition and size distribution of the particles
in Saturn's main ring system, and describe how these properties vary from place to place …