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SUMMARY: Uncovering the stellar impact on planetary systems through popula
 tion demographics - Ed Bryant (UCL)
DTSTART:20250204T130000Z
DTEND:20250204T140000Z
UID:TALK227263@talks.cam.ac.uk
CONTACT:Dr Dolev Bashi
DESCRIPTION:Host stars play a huge role in shaping the planetary systems t
 hey host\, both through their evolution and through the influence they hav
 e over planet formation. While the exact processes through which stars inf
 luence their planetary systems remain unclear\, these processes are all ex
 pected to imprint signatures on the overall population of planets that exi
 st throughout the galaxy. The all sky coverage of the TESS mission provide
 s enables us to study these populations and uncover the influence of the s
 tar. In this talk I will discuss how I use the TESS Full-Frame-Image light
  curves to measure the occurrence rates of different planets and planetary
  systems\, and what these occurrence rates can teach us about the impact o
 f the host star on planet formation and evolution. In particular I will pr
 esent the results from studying two populations. The first is the populati
 on of giant planets around low-mass stars\, through which we can probe an 
 extreme of giant planet formation. The second is the population of giant p
 lanets around post-main sequence stars. By studying this population we can
  better understand the impact of the early stages of post-main sequence st
 ellar evolution on close-in planets\, including strong tidal interactions 
 and rapid orbital decay.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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