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SUMMARY:Know thy Star\, Know thy Prebiotic Chemistry - Paul Rimmer (Cavend
 ish)
DTSTART:20180524T150000Z
DTEND:20180524T160000Z
UID:TALK104494@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:Abstract: "Know thy star\, know thy planet" is an essential pr
 inciple for\nfinding and characterizing planets. The host star needs to be
  understood in\ndetail in order to separate the planet from the star in ra
 dial velocity and\nestimate its mass\, or to estimate its radius from tran
 sits. It is important\nto understand  behavior and properties of star spot
 s and other surface\nfeatures on the star in order to be able to definitiv
 ely identify clouds and\nmolecular features in exoplanet atmospheres from 
 their transmission spectra.\nThe star can also tell us about the history o
 f a planet. The star can be\nseen as an extreme end along a continuum\, in
  temperature and formation\nhistory\, where small rocky planets occupy the
  other extreme end. Also\, the\nstar's chemistry is connected to the disk 
 chemistry\, and disk chemistry and\ndynamics will determine what sorts of 
 planets will form\, what they will be\nmade of\, and what kinds of atmosph
 eres they are likely to have. The\nevolution of the star can have a lot to
  say about where liquid water can\nexist stably over a large fraction of a
  planet’s surface: the liquid water\nhabitable zone\, how that zone may 
 change over time\, and whether a planet in\nthis zone is likely to keep it
 s atmosphere in the face of its host star's\nactivity.\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
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