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arXiv 2011.13668astro-ph.GA
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尘埃演变:超越经验

Dust evolution: going beyond the empirical

Nathalie Ysard

摘要:

在任何天体物理环境中对尘埃进行建模时,一个关键因素是对尘埃材料性质(尺寸分布、化学成分和结构)的演变进行自洽处理,因为它们会对局部辐射场强度和硬度以及气体强度和硬度做出反应和调整。密度和动力学。实现这一目标的最佳方法是将尽可能多的模型参数锚定到实验室数据。在本文中,我提出了两个例子来说明如何突出的问题,尘埃建模已经/正在推进实验室天体物理学的最新进展,什么样的实验室数据仍然需要进一步推进尘埃演化模型。

英文摘要:

A key element when modeling dust in any astrophysical environment is a self-consistent treatment of the evolution of the dust material properties (size distribution, chemical composition and structure) as they react to and adjust to the local radiation field intensity and hardness and to the gas density and dynamics. The best way to achieve this goal is to anchore as many model parameters as possible to laboratory data. In this paper, I present two examples to illustrate how outstanding questions in dust modeling have been/are being moved forward by recent advances in laboratory astrophysics and what laboratory data are still needed to further advance dust evolution models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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