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The Massive Stellar Population in a Nearby Massive Low Surface Brightness Galaxy

Patricia M. Knezek
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Abstract

We have observed the closest known large, low surface brightness (LSB) galaxy, UGC 2302, with HST using WFPC2 and the F555W and F814W filters. UGC 2302 is a typical large LSB galaxy, and thus represents a good choice for detailed stellar population studies. Large LSBs represent an extreme star formation environment, both locally within their disks, and on a larger scale, often residing in underdense regions of the universe. Resolving the underlying stellar component of such a galaxy can provide critical information on how stars form and evolve in low metallicity, yet gas-rich environments. We resolve for the first time the massive stars and tip of the red giant branch in such a system.

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Patricia M. Knezek. 2000-09-20. The Massive Stellar Population in a Nearby Massive Low Surface Brightness Galaxy. https://arxiv.org/abs/astro-ph/0009335

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