2000/09/20 by P. M. Knezek, Patricia M. Knezek, Knezek, Patricia M.
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0009335
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
arxiv created 2000/09/20 · openalex publication_date 2000/09/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/24 · openalex updated_date 2026/07/28
We have observed the closest known large, low surface brightness (LSB)\ngalaxy, UGC 2302, with HST using WFPC2 and the F555W and F814W filters. UGC\n2302 is a typical large LSB galaxy, and thus represents a good choice for\ndetailed stellar population studies. Large LSBs represent an extreme star\nformation environment, both locally within their disks, and on a larger scale,\noften residing in underdense regions of the universe. Resolving the underlying\nstellar component of such a galaxy can provide critical information on how\nstars form and evolve in low metallicity, yet gas-rich environments. We resolve\nfor the first time the massive stars and tip of the red giant branch in such a\nsystem.\n