Planets Big and Small
Event Start:
2019-09-23T15:00:00
Event End:
2019-09-23T16:00:00
Event Information:
From gas-poor Earths to gas-rich Jupiters, planets come in a variety of sizes. I will describe the physics behind the diversity of exoplanets - how the core and gas assembly processes give rise to the observed distribution of radii and orbital periods. Basic astrophysical considerations of gas dynamical friction, gravitational scattering, collisional mergers, and gas accretion by cooling inform us that planets smaller than Neptune likely emerged in situ, in the late stages of disk evolution.
Event Location:
Hennings 318
Speaker:
Eve Lee (McGill)
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Event Start:
2019-09-23T15:00:00
Event End:
2019-09-23T16:00:00
Planets Big and Small
Event Information:
From gas-poor Earths to gas-rich Jupiters, planets come in a variety of sizes. I will describe the physics behind the diversity of exoplanets - how the core and gas assembly processes give rise to the observed distribution of radii and orbital periods. Basic astrophysical considerations of gas dynamical friction, gravitational scattering, collisional mergers, and gas accretion by cooling inform us that planets smaller than Neptune likely emerged in situ, in the late stages of disk evolution.
Event Location:
Hennings 318