Exploring Asymmetric Substructures of the Outer Disk Based on the Conjugate Angle of the Radial Action

Exploring Asymmetric Substructures of the Outer Disk Based on the Conjugate Angle of the Radial Action

We use the conjugate angle of radial action ( θ _R ), the best representation of the orbital phase, to explore the “midplane,” “north branch,” “south branch,” and “Monoceros area” disk structures that were previously revealed in the LAMOST K giants. The former three substructures, identified by thei...

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Bibliographic Details
Main Authors: Y. Xu, C. Liu, Z. Li, H. Tian, Sarah A. Bird, H. J. Newberg, S. Shao, L. C. Deng
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Galaxy kinematics
Galaxy anticenters
Online Access:https://doi.org/10.3847/1538-4357/acefc0

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