Relationship With Jupiter's Rings
Due to its low density and irregular shape, the escape velocity at the surface points of Amalthea closest to and furthest from Jupiter is no more than 1 m/s and dust can easily escape from it after, e.g. micrometeorite impacts; this dust forms the Amalthea Gossamer Ring.
During its flyby of Amalthea, the Galileo orbiter's star scanner detected nine flashes which appear to be small moonlets near the orbit of Amalthea. Since they were sighted only from one location, their true distances could not be measured. The moonlets may be anywhere in size from gravel to stadium-sized. Their origins are unknown, but they may be gravitationally captured into current orbit or they may be ejecta from meteor impacts on the moon. On the next and final orbit, Galileo detected more of these moonlets. However, this time Amalthea was on the other side of the planet, so it is probable that the particles form a ring around the planet near Amalthea's orbit.
Read more about this topic: Amalthea (moon)
Famous quotes containing the words relationship, jupiter and/or rings:
“In contrast with envy, which usually occurs between two people and is focused upon another person’s qualities or possessions, jealousy occurs when a third person becomes a threat to a dyad. Jealousy involves the loss or the impending loss of a relationship that one wants to hold onto, a relationship that is vital to personal fulfillment and claimed as one’s own.”
—Carol S. Becker (b. 1942)
“Few and signally blessed are those whom Jupiter has destined to be cabbage-planters. For they’ve always one foot on the ground and the other not far from it. Anyone is welcome to argue about felicity and supreme happiness. But the man who plants cabbages I now positively declare to be the happiest of mortals.”
—François Rabelais (c. 1494–1553)
“Ye say they all have passed away,
That noble race and brave;
That their light canoes have vanished
From off the crested wave;
That, mid the forests where they roamed,
There rings no hunters’ shout;
But their name is on your waters,
Ye may not wash it out.”
—Lydia Huntley Sigourney (1791–1865)