A New View of the Spiral Structure of the Northern Outer Milky Way in Carbon Monoxide

A New View of the Spiral Structure of the Northern Outer Milky Way in Carbon Monoxide

Based on 32,162 molecular clouds from the Milky Way Imaging Scroll Painting project, we obtain new face-on molecular gas maps of the northern outer Galaxy. The total molecular gas surface density map reveals three segments of spirals, extending 16–43 kpc in length. The Perseus and Outer arms stand o...

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Bibliographic Details
Main Authors: Yan Sun, Ji Yang, Shaobo Zhang, Qing-Zeng Yan, Yang Su, Xuepeng Chen, Xin Zhou, Ye Xu, Hongchi Wang, Min Wang, Zhibo Jiang, Ji-Xian Sun, Deng-Rong Lu, Bing-Gang Ju, Xu-Guo Zhang
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal Letters
Subjects:
Molecular clouds
Milky Way disk
Spiral arms
CO line emission
Spiral pitch angle
Spiral galaxies
Online Access:https://doi.org/10.3847/2041-8213/ad9605
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https://doi.org/10.3847/2041-8213/ad9605

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