# AN IONIZATION CONE IN THE DWARF STARBURST GALAXY NGC 5253

@article{Zastrow2011ANIC,
title={AN IONIZATION CONE IN THE DWARF STARBURST GALAXY NGC 5253},
author={Jordan A. Zastrow and M. S. Oey and Sylvain Veilleux and Michael McDonald and Crystal L. Martin},
journal={The Astrophysical Journal Letters},
year={2011},
volume={741}
}
• Published 28 September 2011
• Physics
• The Astrophysical Journal Letters
There are few observational constraints on how the escape of ionizing photons from starburst galaxies depends on galactic parameters. Here we report on the first major detection of an ionization cone in NGC 5253, a nearby starburst galaxy. This high-excitation feature is identified by mapping the emission-line ratios in the galaxy using [S iii] λ9069, [S ii] λ6716, and Hα narrowband images from the Maryland-Magellan Tunable Filter at Las Campanas Observatory. The ionization cone appears…

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