Despite many decades of progress in understanding the evolution of star formation and stellar populations in galaxies, we have still fundamental questions that have remained unanswered. These include: how do stars cluster in galaxies, and how do these structures evolve in time? ... How are popular star formation rate indicators affected by the recent star formation history of a galaxy? ... The answers to these questions inform our theories for the evolution of galaxies through cosmic times. ...

... Printed in U.S.A. THE STELLAR DISK THICKNESS OF LOW SURFACE BRIGHTNESS GALAXIES D. Bizyaev 1,2,3 and S. Kajsin 4 Received 2003 October 23; accepted 2004 June 9 ABSTRACT We present surface photometry results for a sample of 11 edge-on galaxies observed with the 6 m telescope at the Special Astrophysical Observatory, Russia. ... We find from a comparison of photometric scales that the stellar disks of LSB galaxies are thinner than those of high surface brightness ( HSB) galaxies. ... UGC 11301 .. ...