The origin and orbit of the old, metal-rich, open cluster NGC 6791 - Insights from kinematics

L. Jílková; G. Carraro; B. Jungwiert; I. Minchev

doi:10.1051/0004-6361/201117347

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Volume 541 (May 2012)

A&A, 541 (2012) A64

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Table 7

Radii (in kpc) of the most important resonances for the Galactic bar and spiral arms MW models – corotation R_CR, inner Lindblad resonances R_ILR, and outer Lindblad resonances R_OLR.

Resonance	MW1		MW2
Resonance	bar	spiral arms	bar	spiral arms

R_CR	3.6	12.3	5.1	8.1
R_ILR	1.4	2.8	1.7	2.2
R_OLR	6.9	20.4	9.4	13.9

Notes. Values for both non-axisymmetric components and both MW models are given. See Tables 2 and 6 for angular velocities and other model characteristics. The axisymmetric model described in Sect. 2.1 is used for the unperturbed potential.

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