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SUMMARY:Collisional Features in Saturn's F Ring - Nick Attree (QMUL)
DTSTART:20151111T160000Z
DTEND:20151111T170000Z
UID:TALK61413@talks.cam.ac.uk
CONTACT:Dr B.-O. Demory
DESCRIPTION:Saturn’s F ring is a dynamic and changeable environment that
  has long been suspected of possessing a population of small moonlets. Pre
 viously we identified small (50 km)\, linear features\, observed in Cassin
 i images\, as produced by physical collisions (Attree et al. 2014). Orbit 
 determination suggests they consist of ring material displaced by 1 m/s di
 ssipative collisions with the nearby objects. Larger features are also vis
 ible in mosaics of Cassini images\, some of which are associated with the 
 moonlet S2004 S/6\, and these are thought to involve higher velocity colli
 sions (70 m/s). Here we will present the latest results in cataloguing `je
 ts’ and `mini-jets’ to examine their distribution\, morphology and evo
 lution with time. Comparisons between these observations and N-body simula
 tions will then be presented in an effort to place constraints on the unde
 rlying moonlet population as well as on the physics of the collisions them
 selves.
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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