Astronomy Colloquium: Jack Lissauer

When

Feb. 3, 2017, 3:45pm

Campus Location

Office/Remote Location

Room 217

Description

Jack Lissauer of the NASA Ames Research Center will be the featured speaker at a Department of Physics and Astronomy colloquium. His talk is titled, "Kepler's Multiple Planet Systems."

More than one-third of the 4,700 planet candidates found by NASA’s Kepler spacecraft are associated with target stars that have more than one planet candidate, and such “multis” account for the vast majority of candidates that have been verified as true planets. The large number of multis tells us that flat multiplanet systems such as our solar system are common. Virtually all of the candidate planetary systems are stable, as tested by numerical integrations that assume a physically motivated mass-radius relationship. Statistical studies performed on these candidate systems reveal a great deal about the architecture of planetary systems, including the typical spacing of orbits and flatness. The characteristics of several of the most interesting confirmed Kepler multi-planet systems also will be discussed.

Admission Information

Admission is free. No ticket required.

Contact Information

Department of Physics and Astronomy

External Sponsor

Department of Physics and Astronomy