Scalable N-body Code for the Modeling of Early-type Galaxies
Scalable N-body Code for the Modeling of Early-type Galaxies
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DOI：
10.1007/978-3-540-73491-8_15
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发表时间：
2007-09
期刊：
影响因子：
--
通讯作者：
E. Jourdeuil;E. Emsellem
中科院分区：
文献类型：
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作者：
E. Jourdeuil;E. Emsellem
早型星系具有丰富的光度和动力学结构。这些特征是它们形成和演化过程的化石记录。为了详细研究这些结构，我们建立了旨在再现所观察到的光度学和运动学的模型。所开发的方法是由（12）介绍的方法的推广，包括N体表示，其中粒子的权重随时间变化。我们的代码适用于积分场光谱数据，并能够再现观测星系的光度以及恒星运动学数据。我们将这种技术应用于早型星系的SAURON数据，并提出了对NGC3377的初步结果。
Early-type galaxies exhibit a wealth of photometric and dynamical structures. These signatures are fossil records of their formation and evolution processes. In order to examine these structures in detail, we build models aimed at reproducing the observed photometry and kinematics. The developed method is a generalization of the one introduced by (12), consisting in an N-body representation, in which the weights of the particles are changing with time. Our code is adapted for integral-field spectroscopic data, and is able to reproduce the photometric as well as stellar kinematic data of observed galaxies. We apply this technique on SAURON data of early-type galaxies, and present preliminary results on NGC 3377.