New members of Datura family

被引:8
|
作者
Rosaev, A. [1 ]
Plavalova, E. [2 ]
机构
[1] Yaroslavl State Univ, Res & Educ Ctr Nonlinear Dynam, Yaroslavl, Russia
[2] Slovak Acad Sci, Astron Inst, Bratislava, Slovakia
关键词
Asteroids; Solar system; Orbital evolution; Dynamics; ASTEROID FAMILIES; BELT;
D O I
10.1016/j.pss.2017.01.017
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Asteroid families are groups of minor planets which have a common origin in catastrophic disruptions. Young asteroid families are very interesting because they represent the product of their parent body's fragmentation before orbital and physical evolutionary processes could have changed them. A group of minor asteroids associated with the largest body (1270) Datura is of particular interest because it has enough known members and resides in the inner part of the main asteroid belt and is easier to observe than families (with similar physical characteristics on their surfaces) at further distances. Up to now, 7 members of this family are known. Here we discuss three new members of the Datura Family: (338309) 2002 VR17, 2002 RH291 and 2014 OE206. To prove that these recently-discovered members belong to the Datura family, we conducted numerical orbit integrations with all gravitational perturbation over the last 800 kyrs. In the results, we have found that (338309) 2002 VR17 and 2002 RH291 are very close to the mean orbit of this family throughout the calculation. In the case of 2014 OE206, it has a strongly chaotic orbit.
引用
收藏
页码:21 / 26
页数:6
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