Prof. Doug Lin (UC Santa Cruz / KIAA) visit our group and give colloquium speech

Mar 11, 2011

Origin, Structure, and Evolution of Hot Jupiters and Super-Earths”


In the radial-velocity and transit searches, close-in planets are the first to be found. These planets are most likely formed at much larger distances from their host stars and migrated to their present-day location.

I will discuss the implication of various recent discoveries including 1) the mass-period distribution of close-in planets, 2) their mass-radius relationship, 3) the mis-alignment of their orbital angular momentum vector and spin vector of their host stars, 4) their atmosphere and 5) the dynamical architecture of closely-packed multi-planet systems. Based on these theoretical consideration and population synthesis models, we suggest that 1) sequential core accretion is the dominant mode of planet formation process, 2) planets have considerable mobility, 3) habitable planets are common, and 4) dynamical evolution of planetary systems is an ongoing process.