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SUMMARY:Characterising the internal structures of exoplanets with CHEOPS -
  Thomas Wilson (St Andrews)
DTSTART:20220215T130000Z
DTEND:20220215T140000Z
UID:TALK167993@talks.cam.ac.uk
CONTACT:Dr Annelies Mortier
DESCRIPTION:The successful Kepler and TESS missions have discovered thousa
 nds of exoplanets and let the community focus on the characterisation of t
 hese bodies. One area of research utilises ultra-high-precision photometri
 c and spectroscopic follow-up observations in order to accurately constrai
 n the bulk densities of terrestrial exoplanets. Combining these observable
 s with Bayesian internal structure modelling that uses geological equation
 s of state\, we can start to learn about the compositions of planets. Impo
 rtantly\, by studying multi-planet systems we can conduct comparative plan
 etology that can reveal important aspects that challenge our knowledge of 
 planet formation and evolution via the contrastment of the observational a
 nd modelling results of a planet against its neighbours.\n\nIn this talk\,
  I will present observational studies characterising multi-planet systems 
 initially discovered with TESS and followed-up with the CHEOPS satellite a
 nd ground-based instruments\, such as NGTS and ESPRESSO. Additionally\, I 
 will discuss our Bayesian internal structure and atmospheric escape modell
 ing\, and present the results of utilising such models on several key\, mu
 lti-planet systems observed with CHEOPS. Important knowledge about these s
 ystems was uncovered via a combination of precise observations using a new
  generation of instruments and cutting-edge planetary internal structure m
 odelling. Therefore\, utilising these resources we are at the beginning of
  a new era in characterising terrestrial bodies outside of our Solar Syste
 m.\n\n\n
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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