The orbit of the old, metal-rich, open cluster NGC 6791

被引：1
|
作者：
Jilkova, L. [1 ,2 ]
Carraro, G. [1 ,3 ]
Jungwiert, B. [4 ,5 ]
Minchev, I. [6 ]
机构：
[1] European So Observ, Casilla 19001, Santiago 19, Chile
[2] Masaryk Univ, Fac Sci, Dept Theoret Phys & Astrophys, Brno, Czech Republic
[3] Univ Padua, Dept Astron, Padua, Italy
[4] Acad Sci Czech Republ, Astron Inst, Prague, Czech Republic
[5] Charles Univ Prague, Astron Inst, Fac Math & Phys, Prague, Czech Republic
[6] Inst Astrophys Potsdam, Potsdam, Germany
来源：
ASSEMBLING THE PUZZLE OF THE MILKY WAY | 2012年 / 19卷
关键词：
BAR;
D O I：
10.1051/epjconf/20121907005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a study of the Galactic orbit of the old, metal-rich open cluster NGC6791. To recover its recent kinematical history we integrate the cluster's orbit backward in a Milky Way (MW) model including bar and spiral structure. To estimate the viability of one of the cluster's proposed scenarios of origin we also follow a set of forward integrations originating closer to the Galactic center (GC) where the metal enrichment could be faster. In presence of bar and spiral arms the orbits experience the radial migration due to resonance overlap mechanism [8] and so could possibly reach the recent orbit of NGC6791.
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页数：3
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