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Atomic Hydrogen in a galactic center outflow
journal contribution
posted on 2023-05-17, 18:23 authored by McClure-Griffiths, NM, Green, JA, Hill, AS, Lockman, FJ, John DickeyJohn Dickey, Gaensler, BM, Green, AJWe describe a population of small, high-velocity, atomic hydrogen clouds, loops, and filaments found above and below the disk near the Galactic center. The objects have a mean radius of 15 pc, velocity widths of ~14 km s–1, and are observed at |z| heights up to 700 pc. The velocity distribution of the clouds shows no signature of Galactic rotation. We propose a scenario where the clouds are associated with an outflow from a central star-forming region at the Galactic center. We discuss the clouds as entrained material traveling at ~200 km s–1 in a Galactic wind.
History
Publication title
The Astrophysical Journal LettersVolume
770Article number
L4Number
L4Pagination
1-6ISSN
2041-8205Department/School
School of Natural SciencesPublisher
Institute of Physics Publishing Ltd.Place of publication
United KingdomRights statement
Copyright 2013 The American Astronomical SocietyRepository Status
- Restricted