Starburst triggered by compressive tides in galaxy mergers

被引：2
|
作者：
Renaud, F. [1 ,2 ,3 ]
Theis, Ch. [1 ]
Boily, C. M. [2 ,3 ]
机构：
[1] Univ Vienna, Inst Astron, A-1180 Vienna, Austria
[2] Astron Observ, F-67000 Strasbourg, France
[3] CNRS, UMR 7550, F-67000 Strasbourg, France
来源：
ASTRONOMISCHE NACHRICHTEN | 2008年 / 329卷 / 9-10期
关键词：
galaxies: evolution; galaxies: individual (NGC4038/39); galaxies: interactions; galaxies: starburst; galaxies: star clusters; stars: formation;
D O I：
10.1002/asna.200811083
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The tidal field of galaxies is known generally to be disruptive. However, in the case of galaxy mergers, a compressive mode of tidal wave may develop and last long enough to cocoon the formation of star clusters. Using an N-body simulation of the Antennae galaxies, we derive the positions of these compressive regions and the statistics of their duration. Excellent agreement between the spatial distribution of tides and observed young clusters is found, while the characteristic e-folding times of 10 to 30 Myr derived for the tidal field compare well with cluster formation time-scales. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1050 / 1052
页数：3
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