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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2628
DTSTART:20120322T203000Z
DTEND:20120322T220000Z
DTSTAMP:20260420T062357Z
LAST-MODIFIED:20120319T183411Z
LOCATION:4421 Sterling Hall
SUMMARY:TIdes and magnetic fields in Hot Jupiter Systems\, Astronomy C
 olloquium\, Evgenya Shkolnik\, Lowell Observatory
DESCRIPTION:Hot Jupiters\, located only a few stellar radii from their
  parent stars\, provide a laboratory in which we can study fundamental
  system parameters including planetary magnetic fields\, a key compone
 nt to understanding the planet's internal structure and atmospheric co
 nditions. Over a dozen studies of hot Jupiter systems have independent
 ly converged on the same scenario: a short-period planet can induce ac
 tivity on the photosphere and upper atmosphere of its host star\, maki
 ng the star itself a probe of its planet. This makes star-planet inter
 actions (SPI) currently the most promising way to study exoplanetary m
 agnetic fields. In addition\, strong tidal interactions between the ho
 t Jupiter and its star will increase the stellar rotation rate as well
  as the global stellar activity level\, provided that the planet migra
 ted early on in the system's history. Studying the tidal and magnetic 
 interactions in such planetary systems builds our understanding of the
  formation\, migration and evolution of close-in planets.<br>
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URL:https://www.physics.wisc.edu/events/?id=2628
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