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arXiv 1002.4950astro-ph.CO
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介绍暗能量宇宙模拟系列(DEUSS)

Introducing the Dark Energy Universe Simulation Series (DEUSS)

Y. Rasera, J-M. Alimi, J. Courtin, F. Roy, P-S. Corasaniti, A. Fuzfa, V. Boucher

摘要:

在这篇“看不见的宇宙”论文中,我们介绍了暗能量宇宙模拟系列(DEUSS),旨在研究现实的暗能量模型对宇宙结构形成的影响。它代表了迄今为止在空间动力学方面最大的动态暗能量模拟套件。我们首先提出了3个现实的暗能量模型(校准最新的SNIa和CMB数据):LambdaCDM,与Ratra-Peebles潜力的精髓,与Sugra潜力的精髓。然后,我们从一系列前DEUSS高分辨率模拟(1.3亿个粒子)中分离出非线性物质功率谱的各种贡献。最后,我们介绍了DEUSS,它包括9个大挑战运行,每个运行有10亿个粒子,从而探测z=0时从4 Gpc到3 kpc的尺度。我们的目标是通过“暗能量宇宙虚拟天文台”(DEUVO)和“暗能量宇宙模拟”(DEUS)联盟向社区提供这些模拟。

英文摘要:

In this "Invisible Universe" proceedings, we introduce the Dark Energy Universe Simulation Series (DEUSS) which aim at investigating the imprints of realistic dark energy models on cosmic structure formation. It represents the largest dynamical dark energy simulation suite to date in term of spatial dynamics. We first present the 3 realistic dark energy models (calibrated on latest SNIa and CMB data): LambdaCDM, quintessence with Ratra-Peebles potential, and quintessence with Sugra potential. We then isolate various contributions for non-linear matter power spectra from a series of pre-DEUSS high-resolution simulations (130 million particles). Finally, we introduce DEUSS which consist in 9 Grand Challenge runs with 1 billion particles each thus probing scales from 4 Gpc down to 3 kpc at z=0. Our goal is to make these simulations available to the community through the "Dark Energy Universe Virtual Observatory" (DEUVO), and the "Dark Energy Universe Simulations" (DEUS) consortium.

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