DISTRIBUTIONS OF HOT MOLECULES IN YOUNG CIRCUMSTELLAR DISKS

被引：0
|
作者：
Nomura, H. [1 ]
Aikawa, Y. [2 ]
Nakagawa, Y. [2 ]
Millar, T. J. [1 ]
机构：
[1] Queens Univ Belfast, Sch Math & Phys, ARC, Belfast BT7 1NN, Antrim, North Ireland
[2] Kobe Univ, Dept Earth & Planetary Sci, Kobe, Hyogo 6578501, Japan
来源：
PHYSICS AND ASTROPHYSICS OF PLANETARY SYSTEMS | 2010年 / 41卷
关键词：
PROTOPLANETARY DISKS; HYDROGEN EMISSION;
D O I：
10.1051/eas/1041014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have studied the effect of the gas accretion flow on the distribution of molecules in hot inner regions of young circumstellar disks. The gas-phase reactions initiated by evaporation of icy mantle on dust grains are calculated along the accretion flow, and the molecular line emission is simulated using the obtained abundance profiles. Our results have shown that some evaporated molecules keep high abundances and emit strong transition lines only when the accretion velocity is high enough.
引用
收藏
页码：177 / +
页数：2
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