文章基本信息

标题：ALMA observations of molecular absorption in four directions toward the Galactic bulge
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作者：H. Liszt ; M. Gerin
期刊名称：Astronomy & Astrophysics
印刷版ISSN：0004-6361
电子版ISSN：1432-0746
出版年度：2018
卷号：610
DOI：10.1051/0004-6361/201731983
语种：English
出版社：EDP Sciences
摘要：Context.Alma Cycle 3 observations serendipitously showed strong absorption from diffuse molecular gas in the Galactic bulge at −200 km s−1 51(3σ) for the bulge gas toward J1744 and 58 ± 9 and 64 ± 4 for the disk gas toward J1717 and J1744, respectively, all well above the value of 20−25 typical of the central molecular zone.Conclusions.The kinematics and chemistry of the bulge gas observed toward J1744 more nearly resemble that of gas in the Milky Way disk than in the central molecular zone.
关键词：Key wordsenISM: moleculesISM: cloudsISM: abundances