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The Source of Ionization along the Magellanic Stream
J. Bland-Hawthorn, R. Sutherland, O. Agertz +1
Since its discovery in 1996, the source of the bright H-alpha emission (up to 750 mR) along the Magellanic Stream has remained a mystery. There is no evidence of ionising stars wit…
Three-Dimensional Simulations of a Starburst-Driven Galactic Wind
Jackie L. Cooper, Geoffrey V. Bicknell, Ralph S. Sutherland +1
We have performed a series of three-dimensional simulations of a starburst-driven wind in an inhomogeneous interstellar medium. The introduction of an inhomogeneous disk leads to d…
Spitzer IRS mapping of the central kpc of Centaurus A
Alice C. Quillen, Joss Bland-Hawthorn, Joel Green +6
We report on the results of infrared spectroscopic mapping observations carried out in the nuclear region of Centaurus A (NGC5128). The 500 pc bipolar dust shell discovered by Quil…
Spectacular Trailing Streamers near LMC X-1: The First Evidence of a Jet?
Ryan Cooke, Zdenka Kuncic, Rob Sharp +1
We report VIMOS integral field spectroscopy of the N159F nebula surrounding LMC X-1. Our observations reveal a rich, extended system of emission line filaments lining the boundary…
The Survey for Ionization in Neutral-Gas Galaxies: III. Diffuse, Warm Ionized Medium and Escape of Ionizing Radiation
M. S. Oey, G. R. Meurer, S. Yelda +7
We use the first data release from the SINGG H-alpha survey of HI-selected galaxies to study the quantitative behavior of the diffuse, warm ionized medium (WIM) across the range of…