Photoevaporation of circumstellar discs

被引：0

作者：

Alexander, RD ^{[1
]}

Clarke, CJ ^{[1
]}

Pringle, JE ^{[1
]}

机构：

[1] Inst Astron, Cambridge CB3 0HA, England

来源：

Low-Mass Stars and Brown Dwarfs - IMF Accretion and Activity | 2005年 / 76卷 / 02期

关键词：

accretion; accretion discs; stars : formation; circumstellar matter; planetary systems : protoplanetary discs; stars : pre-main sequence;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Models which couple viscous evolution and photoevaporation have the potential to explain the observed rapid dispersal of discs around T Tauri stars. However the source of the ionizing radiation required to drive the photoevaporation was poorly constrained. We have investigated a number of potential ionizing sources and found that emission from the chromospheres of these stars appears to be sufficient to drive the photoevaporation.

引用

页码：354 / 357

页数：4

共 22 条

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