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Cambridge University Press (CUP), Proceedings of the International Astronomical Union, S298(9), p. 447-447, 2013

DOI: 10.1017/s1743921313007126

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The Velocity Distribution in the Solar Neighborhood from LAMOST Pilot Survey

Journal article published in 2013 by Qiran Xia, Chao Liu ORCID, Yan Xu, Shude Mao, Shuang Gao
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractWe use 63,774 F/G dwarf stars from the LAMOST pilot survey to explore the velocity distribution in the solar neighborhood. The intrinsic UV distribution is reconstructed with a 20-Gaussian model using extreme deconvolution. We find at least two arcs, one extending from (−106, −3) to (94, −27) km/s and the other from (29, −9) to (78, −51) km/s. The arcs are qualitatively consistent with numerical simulations of the resonance induced by the Galactic bar and can be used to constrain its dynamical properties.

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