期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 453, 期 2, 页码 1186-1200出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stv1643
关键词
meteorites, meteors, meteoroids; minor planets, asteroids: individual: 3200 Phaethon
资金
- VEGA (the Slovak Grant Agency for Science) [2/0031/14]
- Slovak Research and Development Agency [APVV-0158-11]
- Project ITMS - European Regional Development Fund [26220120009]
We model a variety of meteoroid streams originating from asteroid 3200 Phaethon and follow their dynamical evolution. The modelling is performed for several past perihelion passages of the parent body. The particles in the models are perturbed (i) only by the gravity of planets, and (ii) both by gravity and by the Poynting-Robertson effect. We confirm that the meteoroid complex of Phaethon consists of two filaments: Geminids and Daytime Sextantids. The most of the Geminids are found to be younger than about 1000 years old and their physical properties have to correspond to values of the parameter beta (giving the strength of the Poynting-Robertson drag) between similar to 0.005 and similar to 0.01, the age of the Daytime Sextantids has to significantly exceed 10 millennia and beta ranges from similar to 0.0005 to similar to 0.001. The discrepancy between the ages and beta-values of particles released from the same source can be explained by the dynamical argument that old Sextantids with a relatively small beta cannot occur in the Geminid filament and that young Geminids cannot occur in the Sextantid filament.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据