NBIA Colloquium by Jack Lissauer on Kepler's Multiple Planet Systems – Niels Bohr Institute - University of Copenhagen

NBIA Colloquium by Jack Lissauer on Kepler's Multiple Planet Systems

Jack Lissauer
(NASA Ames Research Center)

"Kepler's Multiple Planet Systems"

Almost forty percent of the 4175 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 multiple detections tells us that flat multiplanet systems like our own Solar System are common throughout the universe. Virtually all of the candidate planetary systems are stable, as tested by numerical orbit integrations that assume physically motivated mass-radius relationships. Statistical studies performed on these candidate systems reveal a great deal about the architecture of planetary systems, including the typicalspacing of orbits and flatness. The talk will moreover discuss the characteristics of some of the most interesting confirmed Kepler multi-planet systems to date.

Jack Lissauer is a space scientist in the Space Science and Astrobiology Division, NASA Ames Research Center, Moffett Field, California. Lissauer holds a doctorate in applied mathematics granted by the University of California, Berkeley, in 1982. Lissauer and Mark Showalter of the SETI Institute, in 2003 discovered two moons of Uranus – Mab and Cupid – as well as two additional rings around the planet. Lissauer is a science co-investigator on the Kepler space telescope mission, and the upcoming TESS mission.

All are welcome!  Refreshments will be served in the NBIA lounge after the talk.