22 May 2014
22 May 2014
Speaker: Doug Lin (UC Santa Cruz)
Title:Lecar Prize Lecture - Ubiquity of planets and diversity of planetary systems: Origin and Destiny of multiple super Earths and gas giants
Planetary astrophysics is the most rapidly advancing
field in the world-wide astronomical community today.
Planetary census suggest that planetary mass-period
distribution is a function of the mass and metallicity
of their host stars. The diverse and intriguing kinematic
properties of multiple planetary systems are likely to
be the byproducts of both the structure of their cradles
and the long-term evolution of these dynamical systems.
The game-changing influx of data from exoplanet surveys
and characterization of protostellar disks have revitalized
intense efforts to understand the formation and evolution
of extra solar planets and their implications on the origin
of the Solar system. I will discuss some recent paradigm
shifts in theory of planet formation and their compatibility
with the latest observations. The topics to be discussed
include physical barriers in the planet building process,
the role of migration in their evolving natal disks, planets'
interaction with each other and with their host stars.