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SUMMARY:Investigating the composition of comets using ground-based optical
  observations - Cyrielle Opitom (Edinburgh)
DTSTART:20200121T160000Z
DTEND:20200121T170000Z
UID:TALK137701@talks.cam.ac.uk
CONTACT:Richard Booth
DESCRIPTION:\nComets are some of the most pristine remnants from the early
  Solar System. As such\, cometary ices retain invaluable information about
  the conditions prevailing in the Solar System at the time of planetary fo
 rmation. By comparing the composition of large number of comets\, we can p
 robe composition differences between comets coming from different reservoi
 rs\, which may have formed at different distances from the Sun. This is th
 e objective of the TRAPPIST comet survey. Between 2010 and 2016\, we gathe
 red a very high quality and homogeneous data set of more than 35 bright co
 mets. I will present the results of our survey\, trying to answer the foll
 owing questions: Can we define classes of comets based on their compositio
 n? Are composition differences between comets of pristine of evolutionary 
 nature? Is the composition of comets linked to their place of formation in
  the Solar System? I will also discuss the recent observations of the firs
 t two interstellar comets and how their composition compares to Solar Syst
 em comets.\n
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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