Disks around stars and the growth of planetary systems

被引：36

作者：

Greaves, JS ^{[1
]}

机构：

[1] Univ St Andrews, St Andrews KY16 9SS, Fife, Scotland

来源：

SCIENCE | 2005年 / 307卷 / 5706期

关键词：

D O I：

10.1126/science.1101979

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Circumstellar disks play a vital evolutionary role, providing a way to move gas inward and onto a young star. The outward transfer of angular momentum allows the star to contract without breaking up, and the remnant disk of gas and particles is the reservoir for forming planets. High-resolution spectroscopy is uncovering planetary dynamics and motion within the remnant disk, and imaging at infrared to, millimeter wavelengths resolves disk structure over billions of years of evolution. Most stars are born with a disk, and models of planet formation need to form such bodies from the disk material within the disk's 10-million-year life-span.

引用

收藏

页码：68 / 71

页数：4

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