When the satellite crosses the planets roche limit

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Unformatted text preview: p, which can be seen in the image above. Illustration credit: NASA, ESA and Z. Levay (STScI). Photo credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA). The ring parTcles are confined in a thin plane 37 Ring system is wide - Over 3 Saturn diameters across! But very thin - Estimated thickness of only 10 meters Disappear when viewed edge-on Earth sees Saturn’s rings disappear at about every 15 years - half of Saturn’s orbit - when Saturn is at its equinox Image Courtesy Crida & Charnoz, Nature 468, 903 A model for the formaTon of Saturn's icy rings 38 a, A diferentiated satellite in the gaseous circumplanetary disk around Saturn migrates towards the planet. When the satellite crosses the planet's Roche limit, its icy mantle starts to be pulled into pieces by the planet's tidal forces. b, The silicate core carries on migrating towards Saturn and eventually falls into it, leaving behind the ice boulders that give birth to the rings and icy satellites of the planet. How do other jovian ring systems compare to Saturn’s? Jupiter Neptune All four jovian planets have ring systems Uranus Images: NASA 39 All four jovian planets have ring systems. But the rings of Jupiter, Uranus and Neptune are made of dark, dirty d...
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This note was uploaded on 10/23/2013 for the course ASTR 100 taught by Professor Dunne during the Fall '12 term at University of Illinois, Urbana Champaign.

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