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- W2766486501 abstract "We have studied the kinematics of stellar disc populations within the solar neighbourhood in order to find the imprints of the Galactic bar. We carried out the analysis by developing a numerical resolution of the 2D2V (two-dimensional in the physical space, 2D, and two-dimensional in the velocity motion, 2V) collisionless Boltzmann equation and modelling the stellar motions within the plane of the Galaxy within the solar neighbourhood. We recover similar results to those obtained by other authors using N-body simulations, but we are also able to numerically identify faint structures thanks to the cancelling of the Poisson noise. We find that the ratio of the bar pattern speed to the local circular frequency is in the range Ω B ∕Ω = 1.77 to 1.91. If the Galactic bar angle orientation is within the range from 24 to 45 degrees, the bar pattern speed is between 46 and 49 km s −1 kpc −1 ." @default.
- W2766486501 created "2017-11-10" @default.
- W2766486501 creator A5028595054 @default.
- W2766486501 date "2018-04-01" @default.
- W2766486501 modified "2023-10-18" @default.
- W2766486501 title "Collisionless Boltzmann equation approach for the study of stellar discs within barred galaxies" @default.
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- W2766486501 doi "https://doi.org/10.1051/0004-6361/201731277" @default.
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