Accurate model for the Yarkovsky effect
Accurate model for the Yarkovsky effect
复制标题
雅可夫斯基效应的精确模型
DOI：
10.1017/s1743921304008622
复制
发表时间：
2004
期刊：
影响因子：
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通讯作者：
D. Vokrouhlický
中科院分区：
文献类型：
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作者：
D. Čapek;D. Vokrouhlický
Yarkovsky效应(YE)是一种由于各向异性热发射的辐射反冲而产生的微小的非引力力，它长期影响着轨道的半长轴。因此，轨道上的经度或节点的固有经度等角位相经历了二次摄动。这是足够快的，可以直接检测到YE。2003年在(6489)戈列夫卡发现了第一例阳性病例，在不久的将来很有可能发现更多的病例。为了有效地科学利用Ye探测，我们需要准确地计算出它对给定物体的强度。到目前为止可用的简单模型很可能不足以满足即将到来的许多Ye检测可能性。因此，我们开发了一种复杂的数值方法，能够处理大多数问题。在这里，我们通过讨论以下情况来说明它的力量：(I)具有翻滚(非主轴)旋转状态的Toutatis，以及(Ii)2000DP107，一个二进制系统。要搜索作者(S)的其他文章，请访问：http://adsabs.harvard.edu/abstract_service.html
Yarkovsky effect (YE), a tiny nongravitational force due to radiative recoil of the anisotropic thermal emission, is known to secularly affect the orbital semimajor axis. Therefore, angular phases such as longitude in orbit or proper longitude of node undergo a quadratic perturbation. This is fast enough to allow direct detection of the YE. The first positive case was obtained for (6489) Golevka in 2003 and prospects are very good for many more detections in the near future. To make productive scientific use of the YE detections, we need to accurately compute its strength for a given body. Simple models, available so far, will likely not be adequate in many of the forthcoming YE detection possibilities. We thus developed a complex numerical approach capable of treating most of them. Here we illustrate its power by discussing the cases of: (i) Toutatis, with a tumbling (non-principal-axis) rotation state, and (ii) 2000 DP107, a binary system.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html