Robust Emergence of diverse planetary systems - Doug Lin (SETI Talks 2016)
Robust Emergence of diverse planetary systems - Doug Lin (SETI Talks 2016)
Δημοσιεύτηκε στις 2 Δεκ 2016
Recent
observations indicate that super Earths are common whereas gas giants
are relatively rare. Based on the sequential core accretion scenario,
Dr. Lin will discuss how various physical effects which may lead to the
prolific production of super Earths, independent of the mass and
metallicity of their host stars, and the marginal occurrence rate of gas
giants and its dependence on the host stars' properties.
During
their evolution and depletion, protostellar disks regulate protoplanets'
dynamical evolution and statistically determine the average and
dispersion of the asymptotic orbital configuration of multiple systems.
Tidal and magnetic interaction between close-in planets and their host
stars may also lead to observable properties which can be used to
extract valuable constraints on planets' internal composition and
structure.
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