Structure of the Accretion Shock at the Surface of Classical T Tauri Stars

被引：0

作者：

Dodin, A. ^{[1
]}

机构：

[1] Lomonosov Moscow State Univ, Sternberg Astron Inst, Moscow, Russia

来源：

STARS: FROM COLLAPSE TO COLLAPSE | 2017年 / 510卷

关键词：

YOUNG STARS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A steady-state structure and spectrum of the accretion zone at the surface of T Tauri stars are numerically simulated. This modeling uses well-developed methods of the theory of stellar atmospheres with inclusion of the effects of the gas motion (advection and the doppler shift of the lines). The spectrum I-v(mu) and cooling rate of shocked gas are calculated. It is found that at the pre-shock densities N-0 > 10(13) cm(-3) helium and hydrogen lines show a red-shifted absorption, significantly broadened by the Stark effect.

引用

页码：110 / 113

页数：4

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