グローバルCOEプログラム「地球から地球たちへ」国際講義２

（GCOE Earths Internatinal Lecture ２） 東工大開講科目

 

講師 Will M Farr (NorthWestern University)

 

日時 2012年1月13日(金) 10:00-12:00

 

場所　　東京工業大学大岡山キャンパス　石川台２号館315号室

概要    

Dynamics of Retrograde Hot Jupiters

Hot Jupiters are planets of roughly Jupiter's mass orbiting their host star

with periods smaller than about 10 days. It is likely that these planets

formed at much larger distances from their host star and then migrated to

their current location. Given this migration, it is surprising that many of

these planes are seen with high inclinations relative to their star's spin,

and about 1 in 4 orbits retrograde. I will discuss various dynamical

formation scenarios for these strange planets, such as bouts of strong,

sudden planet-planet scattering or long-term (secular) planet-planet or

planet-star interactions.