Caught in the Act: A Metal-rich High-velocity Cloud in the Inner Galaxy

Caught in the Act: A Metal-rich High-velocity Cloud in the Inner Galaxy

We characterize the chemical and physical conditions in an outflowing high-velocity cloud (HVC) in the inner Galaxy. We report a supersolar metallicity of [O/H] = +0.36 ± 0.12 for the HVC at v _LSR = 125.6 km s ^−1 toward the star HD 156359 ( l = 328.°7, b = −14.°5, d = 9 kpc, z = −2.3 kpc). Using a...

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Bibliographic Details
Main Authors: Frances H. Cashman, Andrew J. Fox, Bart P. Wakker, Trisha Ashley, Derck Massa, Edward B. Jenkins, Dhanesh Krishnarao, Robert A. Benjamin, Rongmon Bordoloi, Tae-Sun Kim
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Galactic center
Ultraviolet astronomy
High-velocity clouds
Chemical abundances
Galactic winds
Online Access:https://doi.org/10.3847/1538-4357/acaaa5

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