Stellar Spirals in Triaxial Dark Matter Halos

被引：0
作者：
Hu, Shaoran [1 ]
Sijacki, Debora
机构：
[1] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
来源：
FORMATION AND EVOLUTION OF GALAXY OUTSKIRTS | 2016年 / 11卷 / S321期
关键词：
galaxies: spiral; galaxies: kinematics and dynamics; galaxies: halos;
D O I：
10.1017/S1743921316011431
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Two-armed grand-design spirals may form if the shape of its dark matter halo changes abruptly enough. The feasibility of such a mechanism is tested in realistic simulations. The interplay of such externally-driven spirals and self-induced transient spirals is then studied. Subhaloes are also found to lead to transient grand-design spiral structures when they impact the disk.
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收藏
页码：120 / 120
页数：1
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