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

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Authors

JÍLKOVÁ Lucie CARRARO G. JUNGWIERT B. MINCHEV I.

Year of publication 2012
Type Article in Proceedings
Conference ASSEMBLING THE PUZZLE OF THE MILKY WAY
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Faculty of Science

Citation
Web https://doi.org/10.1051/0004-6361/201117347
Doi http://dx.doi.org/10.1051/epjconf/20121907005
Keywords Galaxy: kinematics and dynamics – open clusters and associations: general – Galaxy: structure – open clusters and associations: individual: NGC 6791
Description 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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