Title:
Planet Nine From Outer Space

dc.contributor.author Batygin, Konstantin
dc.contributor.corporatename Georgia Institute of Technology. School of Physics en_US
dc.contributor.corporatename California Institute of Technology. Division of Geological and Planetary Sciences en_US
dc.date.accessioned 2019-04-17T14:10:33Z
dc.date.available 2019-04-17T14:10:33Z
dc.date.issued 2019-04-09
dc.description Presented on April 9, 2019 at 6:00 p.m. in the Clough Undergraduate Learning Commons, Room 152. en_US
dc.description Forbes Magazine named professor Konstantin Batygin the “next physics rock star” in its 2015 list of “30 Under 30: Young Scientists Who Are Changing the World.” As Assistant Professor of Planetary Science at CalTech, his research interests lie in the field of planetary astrophysics. He is fascinated by a wide range of problems related to the formation and evolution of the solar system, dynamical evolution of exoplanets, as well as physical processes that occur in planetary interiors and atmospheres. en_US
dc.description Runtime: 58:42 minutes en_US
dc.description.abstract At the outskirts of the solar system, beyond the orbit of Neptune, lies an expansive field of icy debris known as the Kuiper belt. The orbits of the individual asteroid-like bodies within the Kuiper belt trace out highly elongated elliptical paths, and require hundreds to thousands of years to complete a single revolution around the Sun. Although the majority of the Kuiper belt’s dynamical structure can be understood within the framework of the known eight-planet solar system, bodies with orbital periods longer than about 4,000 years exhibit a peculiar orbital alignment that eludes explanation. What sculpts this alignment and how is it preserved? In this talk, I will argue that the observed clustering of Kuiper belt orbits can be maintained by a distant, eccentric, Neptune-like planet, whose orbit lies in approximately the same plane as those of the distant Kuiper belt objects, but is anti-aligned with respect to those of the small bodies. In addition to accounting for the observed grouping of orbits, the existence of such a planet naturally explains other, seemingly unrelated dynamical features of the solar system. en_US
dc.format.extent 58:42 minutes
dc.identifier.uri http://hdl.handle.net/1853/60991
dc.language English en_US
dc.language.iso en_US en_US
dc.publisher Georgia Institute of Technology en_US
dc.relation.ispartofseries Physics Public Lecture Series
dc.subject Astrophysics en_US
dc.subject Kuiper belt en_US
dc.subject Orbital alignment en_US
dc.subject Planet en_US
dc.title Planet Nine From Outer Space en_US
dc.type Moving Image
dc.type.genre Lecture
dspace.entity.type Publication
local.relation.ispartofseries School of Physics Public Lecture Series
relation.isSeriesOfPublication f931f7b7-fef6-4b8f-b8a7-d8b64b5536bd
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