PREVAILING DUST-TRANSPORT DIRECTIONS ON COMET 67P/CHURYUMOV–GERASIMENKO
PREVAILING DUST-TRANSPORT DIRECTIONS ON COMET 67P/CHURYUMOV–GERASIMENKO
复制标题
彗星 67P/CHURYUMOV–GERASIMENKO 上的主要尘埃传输方向
DOI：
10.1088/2041-8205/813/2/l33
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Noack
中科院分区：
文献类型：
--
作者：
Tobias Kramer;M. Noack
罗塞塔使命任务观测到67 P/Churyumov-Gerasimenko（67 P/C-G）彗星上较大巨石后面的尘埃输送和沉积。我们提出了一个机制，尘埃输送矢量的基础上，结合详细的地形67 P/C-G的均匀表面活性模型。引力、气体阻力和科里奥利力的结合导致了特定的尘埃传输路径，对于更高的尘埃速度，这些路径为近核彗发提供了燃料。通过将尘埃源均匀分布在整个彗星表面，我们得到了67 P/C-G的全球尘埃输送图。运输矢量与菲莱下降区报告的风尾方向一致。
Dust transport and deposition behind larger boulders on the comet 67P/Churyumov–Gerasimenko (67P/C–G) have been observed by the Rosetta mission. We present a mechanism for dust-transport vectors based on a homogeneous surface activity model incorporating in detail the topography of 67P/C–G. The combination of gravitation, gas drag, and Coriolis force leads to specific dust transfer pathways, which for higher dust velocities fuel the near-nucleus coma. By distributing dust sources homogeneously across the whole cometary surface, we derive a global dust-transport map of 67P/C–G. The transport vectors are in agreement with the reported wind-tail directions in the Philae descent area.
影响因子：
6
作者：
Kramer, Tobias;Noack, Matthias;Heller, Eric J.
通讯作者：
Heller, Eric J.