A New Moving Group in the Local Arm

We present a new moving group clustered in kinematics, spatial position, and elemental abundances. Its spatial position is around the center of the Local Arm of the Milky Way. A convergent point method was taken to select candidate member stars. Among 206 candidate member stars, 74 are pre-main-sequ...

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Bibliographic Details
Published in:The Astronomical journal 2020-05, Vol.159 (5), p.196
Main Authors: Liang, Xilong, Zhao, Jingkun, Chen, Yuqin, Fang, Xiangshong, Ye, Xianhao, Zhang, Jiajun, Kong, Xiaoming, Zhao, Gang
Format: Article
Language:English
Subjects:
Astronomy
Galactic structure
Galaxy abundances
Galaxy kinematics
Kinematics
Milky Way
Orion nebula
Pre-main sequence stars
Stellar associations
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Summary:We present a new moving group clustered in kinematics, spatial position, and elemental abundances. Its spatial position is around the center of the Local Arm of the Milky Way. A convergent point method was taken to select candidate member stars. Among 206 candidate member stars, 74 are pre-main-sequence stars and some of them have stellar disks. We presume those pre-main-sequence stars belong to the Orion nebula. We suggest that this moving group is caused by the density wave of the Local Arm passing by.
ISSN:0004-6256
1538-3881
DOI:10.3847/1538-3881/ab7fa9