American Astronomical Society • Provided by the NASA Astrophysics Data System

Two interacting galaxies and four central galaxies in cooling flow clusters were observed with the Hubble Space Telescope to look for young compact massive star clusters. The two interacting galaxies, NGC 3597 and NGC 6052, show clear evidence for resolved bright blue clusters that are likely to be comparable in mass to Galactic globulars based on their colors and brightnesses. In NGC 3597, the clusters have physical sizes comparable to Galactic globulars. In NGC 6052, there are a few compact clusters, but most appear more extended. No such objects were seen in three of the four cooling flow galaxies. The central galaxy in Abell 1795 may have several massive blue clusters, but its distance prevents us from knowing how compact they are. © 1996 American Astronomical Society. 1Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, operated by AURA Inc under contract to NASA. 416 Astron. J. 112 (2), August 1996 0004-6256/96/112(2)/416/15/$10.00 © 1996 Am. Astron. Soc. 416 © American Astronomical Society • Provided by the NASA Astrophysics Data System 1 9 9 6 A J . . . . 1 1 2 . . 4 1 6 H 417 HOLTZMAN ET AL.: STAR CLUSTERS IN INTERACTING GALAXIES 417 TABLE 1. Observed objects. Object a(2000) 8(2000) NGC 3597 11 14 42.1 -23 43 41.6 NGC 6052 16 05 13.0 +20 32 32 Abell496 04 33 37.8 -13 15 42.5 Abell1795 13 48 52.5 +26 35 35.0 Abell2029 15 10 56.0 +5 44 41.4 Abell2597 23 25 19.7 -12 7 27.5