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SUMMARY:Giant impacts and planetary evolution - Agnor\, C (QMUL)
DTSTART:20090818T111000Z
DTEND:20090818T113000Z
UID:TALK19487@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:The planetesimal hypothesis posits that solid rocky or icy pla
 nets form via the accumulation of smaller bodies. In this picture\, collis
 ions between bodies are the mechanism by which planets acquire mass and a 
 principal process of planetary evolution. Giant collisions between like-si
 zed planets have been invoked to explain several bulk planetary characteri
 stics (e.g. the origin of Earth's Moon and Mercury's large iron core). \n\
 nIn this talk\, I will discuss how these giant impacts arise in the contex
 t of planetary formation and our recent results to explicitly model these 
 collisions. I will discuss the connections between the different stages an
 d regimes of planetary growth\, the giant impact outcomes expected\, and t
 he implications for the thermal\, rotational and compositional evolution o
 f emerging planets. 
LOCATION:Seminar Room 1 Newton Institute
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