Atomic Hydrogen in a Galactic Center Outflow
Astrophysics of Galaxies
2015-06-15 v1
Abstract
We 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 km/s and are observed at 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 km/s in a Galactic wind.
Cite
@article{arxiv.1304.7538,
title = {Atomic Hydrogen in a Galactic Center Outflow},
author = {N. M. McClure-Griffiths and J. A. Green and A. S. Hill and F. J. Lockman and J. M. Dickey and B. M. Gaensler and A. J. Green},
journal= {arXiv preprint arXiv:1304.7538},
year = {2015}
}
Comments
Accepted for publication in Astrophysical Journal Letters