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.
@article{arxiv.astro-ph/0009335,
title = {The Massive Stellar Population in a Nearby Massive Low Surface Brightness Galaxy},
author = {Patricia M. Knezek},
journal= {arXiv preprint arXiv:astro-ph/0009335},
year = {2007}
}
Comments
to appear in "Galaxy Disks and Disk Galaxies", eds. J.G. Funes S.J. & E.M. Corsini, 2 pages, 2 postscript figures, uses newpaspman.sty