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Title: Formation of Planets Around the Sun and Other Stars

Formation of Planets around the Sun and other stars. The quest to understand the formation of planets and planetary systems has entered an era of renaissance. Driven by observational discoveries in somore »lar system exploration, protostellar disks, and extra solar planets, we have established a rich data bank which contains not only relic clues around mature stars, including the Sun, but also direct image of ongoing processes around young stars. For the first time in this scientific endeavor, we have adequate information to construct quantitative models to account for the ubiquity of planets and diversity of planetary systems. Some of the most intriguing theoretical questions facing us today include: a) how did the planets in the solar system form with their present-day mass, composition, and orbital elements, b) is planet formation a deterministic or chaotic process, and c) what are the observable signatures of planet formation and evolution around nearby young and mature stars? I will present a comprehensive scenario which suggests a) gas giant planets formed through coagulation of planetsimals and gas accretion onto earth-like cores; b) the final assemblage of the terrestrial planets in the solar system occurred through the propagation of Jupiter's secular resonance 4-30 Myrs after the emergence of the gas giant; and c) although they are yet to be discovered, Earth-like planets are expected to be common around nearby stars.« less
Title: Formation of Planets Around the Sun and Other Stars
Authors:
Publication Date: 2005-11-14
OSTI Identifier: 987340
DOE Contract Number: AC02-76SF00515
Other Number(s): Other: From chaos to order during the final assemblage of Earth
Resource Type: Multimedia
Specific Type: Multimedia Presentation
Resource Relation: Conference: SLAC Colloquium Series, SLAC National Accelerator Laboratory, Menlo Park, California, presented on November 14, 2005
Research Org: SLAC (SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States))
Sponsoring Org: USDOE Office of Science (SC)
Subject: 79 ASTRONOMY AND ASTROPHYSICS ; STAR ; PLANET ; SOLAR SYSTEM
Publisher: Science Videos from the SLAC Colloquium Series
Country of Publication: United States
Language: English
Run Time: 1:10:18
System Entry Date: 2018-01-05