RT Book, Section T1 Resolved stellar populations constituting extended UV disks (XUV-disks) in nearby galaxies A1 Thilker, D. A. A1 Bianchi, L. A1 Gil De Paz, Armando A1 Meurer, G. A1 Boissier, S. A1 Madore, B. F. A1 Ferguson, A. A1 Hameed, S. A1 Neff, S. A1 Martin, C. D. A1 Rich, R. M. A1 Schiminovich, D. A1 Seibert, M.;, M. A1 Wyder, T. A2 Funes, José G. A2 Corsini, Enrico Maria AB We describe HST imaging of recent star formation complexes located in the extended UV disk (XUV-disk) component of NGC 5236 (M 83), NGC 5055 (M 63), and NGC 2090. Photometry in four FUV-visible bands permits us to constrain the type of resolved stars and effective age of clusters, in addition to extinction. The preliminary results given herein focus on CMD analysis and clustering properties in this unique star-forming environment. PB Astronomical Society of the Pacific (ASP) SN 978-1-58381-662-2 YR 2008 FD 2008 LK https://hdl.handle.net/20.500.14352/53489 UL https://hdl.handle.net/20.500.14352/53489 LA eng NO © Astronomical Society of the Pacific (ASP).International Conference on Formation and Evolution of Galaxy Disks (2007. Rome, Italy). This work was supported by grants HST-GO-10608.01-A and HST-GO-10904.01-A. NO The Space Telescope Science Institute (STScI) NO National Aeronautics and Space Administration (NASA) DS Docta Complutense RD 13 jul 2025